How Does a Blockchain Prevent Double-Spending of Bitcoins ...

Cameron Winklevoss illustrates his advanced conception of Truth [via /r/btc]

Cameron Winklevoss illustrates his advanced conception of Truth [via /btc] submitted by jstolfi to Buttcoin [link] [comments]

Ultimate glossary of crypto currency terms, acronyms and abbreviations

I thought it would be really cool to have an ultimate guide for those new to crypto currencies and the terms used. I made this mostly for beginner’s and veterans alike. I’m not sure how much use you will get out of this. Stuff gets lost on Reddit quite easily so I hope this finds its way to you. Included in this list, I have included most of the terms used in crypto-communities. I have compiled this list from a multitude of sources. The list is in alphabetical order and may include some words/terms not exclusive to the crypto world but may be helpful regardless.
2FA
Two factor authentication. I highly advise that you use it.
51% Attack:
A situation where a single malicious individual or group gains control of more than half of a cryptocurrency network’s computing power. Theoretically, it could allow perpetrators to manipulate the system and spend the same coin multiple times, stop other users from completing blocks and make conflicting transactions to a chain that could harm the network.
Address (or Addy):
A unique string of numbers and letters (both upper and lower case) used to send, receive or store cryptocurrency on the network. It is also the public key in a pair of keys needed to sign a digital transaction. Addresses can be shared publicly as a text or in the form of a scannable QR code. They differ between cryptocurrencies. You can’t send Bitcoin to an Ethereum address, for example.
Altcoin (alternative coin): Any digital currency other than Bitcoin. These other currencies are alternatives to Bitcoin regarding features and functionalities (e.g. faster confirmation time, lower price, improved mining algorithm, higher total coin supply). There are hundreds of altcoins, including Ether, Ripple, Litecoin and many many others.
AIRDROP:
An event where the investors/participants are able to receive free tokens or coins into their digital wallet.
AML: Defines Anti-Money Laundering laws**.**
ARBITRAGE:
Getting risk-free profits by trading (simultaneous buying and selling of the cryptocurrency) on two different exchanges which have different prices for the same asset.
Ashdraked:
Being Ashdraked is essentially a more detailed version of being Zhoutonged. It is when you lose all of your invested capital, but you do so specifically by shorting Bitcoin. The expression “Ashdraked” comes from a story of a Romanian cryptocurrency investor who insisted upon shorting BTC, as he had done so successfully in the past. When the price of BTC rose from USD 300 to USD 500, the Romanian investor lost all of his money.
ATH (All Time High):
The highest price ever achieved by a cryptocurrency in its entire history. Alternatively, ATL is all time low
Bearish:
A tendency of prices to fall; a pessimistic expectation that the value of a coin is going to drop.
Bear trap:
A manipulation of a stock or commodity by investors.
Bitcoin:
The very first, and the highest ever valued, mass-market open source and decentralized cryptocurrency and digital payment system that runs on a worldwide peer to peer network. It operates independently of any centralized authorities
Bitconnect:
One of the biggest scams in the crypto world. it was made popular in the meme world by screaming idiot Carlos Matos, who infamously proclaimed," hey hey heeeey” and “what's a what's a what's up wasssssssssuuuuuuuuuuuuup, BitConneeeeeeeeeeeeeeeeeeeeeeeect!”. He is now in the mentally ill meme hall of fame.
Block:
A package of permanently recorded data about transactions occurring every time period (typically about 10 minutes) on the blockchain network. Once a record has been completed and verified, it goes into a blockchain and gives way to the next block. Each block also contains a complex mathematical puzzle with a unique answer, without which new blocks can’t be added to the chain.
Blockchain:
An unchangeable digital record of all transactions ever made in a particular cryptocurrency and shared across thousands of computers worldwide. It has no central authority governing it. Records, or blocks, are chained to each other using a cryptographic signature. They are stored publicly and chronologically, from the genesis block to the latest block, hence the term blockchain. Anyone can have access to the database and yet it remains incredibly difficult to hack.
Bullish:
A tendency of prices to rise; an optimistic expectation that a specific cryptocurrency will do well and its value is going to increase.
BTFD:
Buy the fucking dip. This advise was bestowed upon us by the gods themselves. It is the iron code to crypto enthusiasts.
Bull market:
A market that Cryptos are going up.
Consensus:
An agreement among blockchain participants on the validity of data. Consensus is reached when the majority of nodes on the network verify that the transaction is 100% valid.
Crypto bubble:
The instability of cryptocurrencies in terms of price value
Cryptocurrency:
A type of digital currency, secured by strong computer code (cryptography), that operates independently of any middlemen or central authoritie
Cryptography:
The art of converting sensitive data into a format unreadable for unauthorized users, which when decoded would result in a meaningful statement.
Cryptojacking:
The use of someone else’s device and profiting from its computational power to mine cryptocurrency without their knowledge and consent.
Crypto-Valhalla:
When HODLers(holders) eventually cash out they go to a place called crypto-Valhalla. The strong will be separated from the weak and the strong will then be given lambos.
DAO:
Decentralized Autonomous Organizations. It defines A blockchain technology inspired organization or corporation that exists and operates without human intervention.
Dapp (decentralized application):
An open-source application that runs and stores its data on a blockchain network (instead of a central server) to prevent a single failure point. This software is not controlled by the single body – information comes from people providing other people with data or computing power.
Decentralized:
A system with no fundamental control authority that governs the network. Instead, it is jointly managed by all users to the system.
Desktop wallet:
A wallet that stores the private keys on your computer, which allow the spending and management of your bitcoins.
DILDO:
Long red or green candles. This is a crypto signal that tells you that it is not favorable to trade at the moment. Found on candlestick charts.
Digital Signature:
An encrypted digital code attached to an electronic document to prove that the sender is who they say they are and confirm that a transaction is valid and should be accepted by the network.
Double Spending:
An attack on the blockchain where a malicious user manipulates the network by sending digital money to two different recipients at exactly the same time.
DYOR:
Means do your own research.
Encryption:
Converting data into code to protect it from unauthorized access, so that only the intended recipient(s) can decode it.
Eskrow:
the practice of having a third party act as an intermediary in a transaction. This third party holds the funds on and sends them off when the transaction is completed.
Ethereum:
Ethereum is an open source, public, blockchain-based platform that runs smart contracts and allows you to build dapps on it. Ethereum is fueled by the cryptocurrency Ether.
Exchange:
A platform (centralized or decentralized) for exchanging (trading) different forms of cryptocurrencies. These exchanges allow you to exchange cryptos for local currency. Some popular exchanges are Coinbase, Bittrex, Kraken and more.
Faucet:
A website which gives away free cryptocurrencies.
Fiat money:
Fiat currency is legal tender whose value is backed by the government that issued it, such as the US dollar or UK pound.
Fork:
A split in the blockchain, resulting in two separate branches, an original and a new alternate version of the cryptocurrency. As a single blockchain forks into two, they will both run simultaneously on different parts of the network. For example, Bitcoin Cash is a Bitcoin fork.
FOMO:
Fear of missing out.
Frictionless:
A system is frictionless when there are zero transaction costs or trading retraints.
FUD:
Fear, Uncertainty and Doubt regarding the crypto market.
Gas:
A fee paid to run transactions, dapps and smart contracts on Ethereum.
Halving:
A 50% decrease in block reward after the mining of a pre-specified number of blocks. Every 4 years, the “reward” for successfully mining a block of bitcoin is reduced by half. This is referred to as “Halving”.
Hardware wallet:
Physical wallet devices that can securely store cryptocurrency maximally. Some examples are Ledger Nano S**,** Digital Bitbox and more**.**
Hash:
The process that takes input data of varying sizes, performs an operation on it and converts it into a fixed size output. It cannot be reversed.
Hashing:
The process by which you mine bitcoin or similar cryptocurrency, by trying to solve the mathematical problem within it, using cryptographic hash functions.
HODL:
A Bitcoin enthusiast once accidentally misspelled the word HOLD and it is now part of the bitcoin legend. It can also mean hold on for dear life.
ICO (Initial Coin Offering):
A blockchain-based fundraising mechanism, or a public crowd sale of a new digital coin, used to raise capital from supporters for an early stage crypto venture. Beware of these as there have been quite a few scams in the past.
John mcAfee:
A man who will one day eat his balls on live television for falsely predicting bitcoin going to 100k. He has also become a small meme within the crypto community for his outlandish claims.
JOMO:
Joy of missing out. For those who are so depressed about missing out their sadness becomes joy.
KYC:
Know your customer(alternatively consumer).
Lambo:
This stands for Lamborghini. A small meme within the investing community where the moment someone gets rich they spend their earnings on a lambo. One day we will all have lambos in crypto-valhalla.
Ledger:
Away from Blockchain, it is a book of financial transactions and balances. In the world of crypto, the blockchain functions as a ledger. A digital currency’s ledger records all transactions which took place on a certain block chain network.
Leverage:
Trading with borrowed capital (margin) in order to increase the potential return of an investment.
Liquidity:
The availability of an asset to be bought and sold easily, without affecting its market price.
of the coins.
Margin trading:
The trading of assets or securities bought with borrowed money.
Market cap/MCAP:
A short-term for Market Capitalization. Market Capitalization refers to the market value of a particular cryptocurrency. It is computed by multiplying the Price of an individual unit of coins by the total circulating supply.
Miner:
A computer participating in any cryptocurrency network performing proof of work. This is usually done to receive block rewards.
Mining:
The act of solving a complex math equation to validate a blockchain transaction using computer processing power and specialized hardware.
Mining contract:
A method of investing in bitcoin mining hardware, allowing anyone to rent out a pre-specified amount of hashing power, for an agreed amount of time. The mining service takes care of hardware maintenance, hosting and electricity costs, making it simpler for investors.
Mining rig:
A computer specially designed for mining cryptocurrencies.
Mooning:
A situation the price of a coin rapidly increases in value. Can also be used as: “I hope bitcoin goes to the moon”
Node:
Any computing device that connects to the blockchain network.
Open source:
The practice of sharing the source code for a piece of computer software, allowing it to be distributed and altered by anyone.
OTC:
Over the counter. Trading is done directly between parties.
P2P (Peer to Peer):
A type of network connection where participants interact directly with each other rather than through a centralized third party. The system allows the exchange of resources from A to B, without having to go through a separate server.
Paper wallet:
A form of “cold storage” where the private keys are printed onto a piece of paper and stored offline. Considered as one of the safest crypto wallets, the truth is that it majors in sweeping coins from your wallets.
Pre mining:
The mining of a cryptocurrency by its developers before it is released to the public.
Proof of stake (POS):
A consensus distribution algorithm which essentially rewards you based upon the amount of the coin that you own. In other words, more investment in the coin will leads to more gain when you mine with this protocol In Proof of Stake, the resource held by the “miner” is their stake in the currency.
PROOF OF WORK (POW) :
The competition of computers competing to solve a tough crypto math problem. The first computer that does this is allowed to create new blocks and record information.” The miner is then usually rewarded via transaction fees.
Protocol:
A standardized set of rules for formatting and processing data.
Public key / private key:
A cryptographic code that allows a user to receive cryptocurrencies into an account. The public key is made available to everyone via a publicly accessible directory, and the private key remains confidential to its respective owner. Because the key pair is mathematically related, whatever is encrypted with a public key may only be decrypted by its corresponding private key.
Pump and dump:
Massive buying and selling activity of cryptocurrencies (sometimes organized and to one’s benefit) which essentially result in a phenomenon where the significant surge in the value of coin followed by a huge crash take place in a short time frame.
Recovery phrase:
A set of phrases you are given whereby you can regain or access your wallet should you lose the private key to your wallets — paper, mobile, desktop, and hardware wallet. These phrases are some random 12–24 words. A recovery Phrase can also be called as Recovery seed, Seed Key, Recovery Key, or Seed Phrase.
REKT:
Referring to the word “wrecked”. It defines a situation whereby an investor or trader who has been ruined utterly following the massive losses suffered in crypto industry.
Ripple:
An alternative payment network to Bitcoin based on similar cryptography. The ripple network uses XRP as currency and is capable of sending any asset type.
ROI:
Return on investment.
Safu:
A crypto term for safe popularized by the Bizonnaci YouTube channel after the CEO of Binance tweeted
“Funds are safe."
“the exchage I use got hacked!”“Oh no, are your funds safu?”
“My coins better be safu!”


Sats/Satoshi:
The smallest fraction of a bitcoin is called a “satoshi” or “sat”. It represents one hundred-millionth of a bitcoin and is named after Satoshi Nakamoto.
Satoshi Nakamoto:
This was the pseudonym for the mysterious creator of Bitcoin.
Scalability:
The ability of a cryptocurrency to contain the massive use of its Blockchain.
Sharding:
A scaling solution for the Blockchain. It is generally a method that allows nodes to have partial copies of the complete blockchain in order to increase overall network performance and consensus speeds.
Shitcoin:
Coin with little potential or future prospects.
Shill:
Spreading buzz by heavily promoting a particular coin in the community to create awareness.
Short position:
Selling of a specific cryptocurrency with an expectation that it will drop in value.
Silk road:
The online marketplace where drugs and other illicit items were traded for Bitcoin. This marketplace is using accessed through “TOR”, and VPNs. In October 2013, a Silk Road was shut down in by the FBI.
Smart Contract:
Certain computational benchmarks or barriers that have to be met in turn for money or data to be deposited or even be used to verify things such as land rights.
Software Wallet:
A crypto wallet that exists purely as software files on a computer. Usually, software wallets can be generated for free from a variety of sources.
Solidity:
A contract-oriented coding language for implementing smart contracts on Ethereum. Its syntax is similar to that of JavaScript.
Stable coin:
A cryptocoin with an extremely low volatility that can be used to trade against the overall market.
Staking:
Staking is the process of actively participating in transaction validation (similar to mining) on a proof-of-stake (PoS) blockchain. On these blockchains, anyone with a minimum-required balance of a specific cryptocurrency can validate transactions and earn Staking rewards.
Surge:
When a crypto currency appreciates or goes up in price.
Tank:
The opposite of mooning. When a coin tanks it can also be described as crashing.
Tendies
For traders , the chief prize is “tendies” (chicken tenders, the treat an overgrown man-child receives for being a “Good Boy”) .
Token:
A unit of value that represents a digital asset built on a blockchain system. A token is usually considered as a “coin” of a cryptocurrency, but it really has a wider functionality.
TOR: “The Onion Router” is a free web browser designed to protect users’ anonymity and resist censorship. Tor is usually used surfing the web anonymously and access sites on the “Darkweb”.
Transaction fee:
An amount of money users are charged from their transaction when sending cryptocurrencies.
Volatility:
A measure of fluctuations in the price of a financial instrument over time. High volatility in bitcoin is seen as risky since its shifting value discourages people from spending or accepting it.
Wallet:
A file that stores all your private keys and communicates with the blockchain to perform transactions. It allows you to send and receive bitcoins securely as well as view your balance and transaction history.
Whale:
An investor that holds a tremendous amount of cryptocurrency. Their extraordinary large holdings allow them to control prices and manipulate the market.
Whitepaper:

A comprehensive report or guide made to understand an issue or help decision making. It is also seen as a technical write up that most cryptocurrencies provide to take a deep look into the structure and plan of the cryptocurrency/Blockchain project. Satoshi Nakamoto was the first to release a whitepaper on Bitcoin, titled “Bitcoin: A Peer-to-Peer Electronic Cash System” in late 2008.
And with that I finally complete my odyssey. I sincerely hope that this helped you and if you are new, I welcome you to crypto. If you read all of that I hope it increased, you in knowledge.
my final definition:
Crypto-Family:
A collection of all the HODLers and crypto fanatics. A place where all people alike unite over a love for crypto.
We are all in this together as we pioneer the new world that is crypto currency. I wish you a great day and Happy HODLing.
-u/flacciduck
feel free to comment words or terms that you feel should be included or about any errors I made.
Edit1:some fixes were made and added words.
submitted by flacciduck to CryptoCurrency [link] [comments]

China is a threat to bitcoin?

I understand that 51% Attack is very costly and probably won't probably much financial incentive to the one who orchestrates it. I came across this blog post called How China can kill bitcoin and thought that the author does have quite a good point (despite the tone of the blog post). He argued that the top 4 Chinese mining pools alone represent more than 51% of the hashrate and if the Chinese government are to forcibly commandeer these top 4 mining pools (without having to buy new mining equipment) then they can easily orchestrate the 51% attack within an hour and a double-spend would have been successful.
A few questions:
  1. If this all is true, wouldn't you say that China is quite a big threat to the existence of bitcoin? Isn't this something we should be more worried about? (it seems that most of bitcoin community just assumed that no one will attempt the 51% attack and it has been debunked many times). I don't know what could be the incentives for China to do this (cracking down money laundering?) but does the fact that they could do this if they want to concern you?
  2. Will bitcoin mining be more decentralized (esp away from China) in the future? It seems that miners should go wherever there is cheap electricity, why haven't more countries jumped in?
  3. Can anyone comment about Stratum V2? Will it help address the problem by giving the control to miners o select their own transaction sets? When will it be ready?
submitted by stackingsatseveryday to BitcoinBeginners [link] [comments]

RBF was basically sabotage of the BTC network.

"We processed over 100,000 transactions with amounts from $5-2000/transaction with no double spends. Over $25m in sales and the first time we got a double spend attack was after RBF was introduced. " -- Vinny Lingham
https://www.youtube.com/watch?v=lLkiu8zs318
submitted by MemoryDealers to btc [link] [comments]

[OWL WATCH] Waiting for "IOTA TIME" 20; Hans's re-defined directions for DLT

Disclaimer: This is my editing, so there could be some misunderstandings...
--------------------------------------------
wellwho오늘 오후 4:50
u/Ben Royce****how far is society2 from having something clickable powered by IOTA?
Ben Royce오늘 오후 4:51
demo of basic tech late sep/ early oct. MVP early 2021
---------------------------------------------------
HusQy
Colored coins are the most misunderstood upcoming feature of the IOTA protocol. A lot of people see them just as a competitor to ERC-20 tokens on ETH and therefore a way of tokenizing things on IOTA, but they are much more important because they enable "consensus on data".
Bob
All this stuff already works on neblio but decentralized and scaling to 3500 tps
HusQy
Neblio has 8 mb blocks with 30 seconds blocktime. This is a throughput of 8 mb / 30 seconds = 267 kb per second. Transactions are 401+ bytes which means that throughput is 267 kb / 401 bytes = 665 TPS. IOTA is faster, feeless and will get even faster with the next update ...
-----------------------------------------------------------------------------
HusQy
Which DLT would be more secure? One that is collaboratively validated by the economic actors of the world (coporations, companies, foundations, states, people) or one that is validated by an anonymous group of wealthy crypto holders?
HusQy
The problem with current DLTs is that we use protection mechanisms like Proof of Work and Proof of Stake that are inherently hard to shard. The more shards you have, the more you have to distribute your hashing power and your stake and the less secure the system becomes.
HusQy
Real world identities (i.e. all the big economic actors) however could shard into as many shards as necessary without making the system less secure. Todays DLTs waste trust in the same way as PoW wastes energy.
HusQy
Is a secure money worth anything if you can't trust the economic actors that you would buy stuff from? If you buy a car from Volkswagen and they just beat you up and throw you out of the shop after you payed then a secure money won't be useful either :P
HusQy
**I believe that if you want to make DLT work and be successful then we need to ultimately incorporate things like trust in entities into the technology.**Examples likes wirecard show that trusting a single company is problematic but trusting the economy as a whole should be at ...
**... least as secure as todays DLTs.**And as soon as you add sharding it will be orders of magnitude more secure. DLT has failed to deliver because people have tried to build a system in vacuum that completely ignores things that already exist and that you can leverage on.
----------------------------------------------------------------------------------
HusQy
Blockchain is a bit like people sitting in a room, trying to communicate through BINGO sheets. While they talk, they write down some of the things that have been said and as soon as one screams BINGO! he hands around his sheet to inform everybody about what has been said.
HusQy
If you think that this is the most efficient form of communication for people sitting in the same room and the answer to scalability is to make bigger BINGO sheets or to allow people to solve the puzzle faster then you will most probably never understand what IOTA is working on.
--------------------------------------------------------------------------------
HusQy
**Blockchain does not work with too many equally weighted validators.****If 400 validators produce a validating statement (block) at the same time then only one can survive as part of a longest chain.**IOTA is all about collaborative validation.
**Another problem of blockchain is that every transaction gets sent twice through the network. Once from the nodes to the miners and a 2nd time from the miners as part of a block.**Blockchain will therefore always only be able to use 50% of the network throughput.
And****the last problem is that you can not arbitrarily decrease the time between blocks as it breaks down if the time between blocks gets smaller than the average network delay. The idle time between blocks is precious time that could be used for processing transactions.
-----------------------------------------------------------------------------
HusQy
I am not talking about a system with a fixed number of validators but one that is completely open and permissionless where any new company can just spin up a node and take part in the network.
------------------------------------------------------------------------
HusQy
Proof of Work and Proof of Stake are both centralizing sybil-protection mechanism. I don't think that Satoshi wanted 14 mining pools to run the network.
And "economic clustering" was always the "end game" of IOTA.
-----------------------------------------------------------------------------
HusQy
**Using Proof of Stake is not trustless. Proof of Stake means you trust the richest people and hope that they approve your transactions. The rich are getting richer (through your fees) and you are getting more and more dependant on them.**Is that your vision of the future?
----------------------------------------------------------------------------

HusQy
Please read again exactly what I wrote. I have not spoken of introducing governance by large companies, nor have I said that IOTA should be permissioned. We aim for a network with millions or even billions of nodes.

HusQy
That can't work at all with a permissioned ledger - who should then drop off all these devices or authorize them to participate in the network? My key message was the following: Proof of Work and Proof of Stake will always be if you split them up via sharding ...

HusQy
... less secure because you simply need fewer coins or less hash power to have the majority of the votes in a shard. This is not the case with trust in society and the economy. When all companies in the world jointly secure a DLT ...

HusQy
... then these companies could install any number of servers in any number of shards without compromising security, because "trust" does not become less just because they operate several servers. First of all, that is a fact and nothing else.

HusQy
Proof of Work and Proof of Stake are contrary to the assumption of many not "trustless" but follow the maxim: "In the greed of miners we trust!" The basic assumption that the miners do not destroy the system that generates income for them is fundamental here for the ...

HusQy
... security of every DLT. I think a similar assumption would still be correct for the economy as a whole: The companies of the world (and not just the big ones) would not destroy the system with which their customers pay them. In this respect, a system would be ...

HusQy
... which is validated by society and the economy as a whole probably just as "safely" as a system which is validated by a few anonymous miners. Why a small elite of miners should be better validators than any human and ...

HusQy
... To be honest, companies in this world do not open up to me. As already written in my other thread, safe money does not bring you anything if you have to assume that Volkswagen will beat you up and throw you out of the store after you ...

HusQy
... paid for a car. The thoughts I discussed say nothing about the immediate future of IOTA (we use for Coordicide mana) but rather speak of a world where DLT has already become an integral part of our lives and we ...

HusQy
... a corresponding number of companies, non-profit organizations and people have used DLT and where such a system could be implemented. The point here is not to create a governance solution that in any way influences the development of technology ...

HusQy
... or have to give nodes their OK first, but about developing a system that enables people to freely choose the validators they trust. For example, you can also declare your grandma to be a validator when you install your node or your ...

HusQy
... local supermarket. Economic relationships in the real world usually form a close-knit network and it doesn't really matter who you follow as long as the majority is honest. I also don't understand your criticism of censorship, because something like that in IOTA ...

HusQy
... is almost impossible. Each transaction confirms two other transactions which is growing exponentially. If someone wanted to ignore a transaction, he would have to ignore an exponential number of other transactions after a very short time. In contrast to blockchain ...

HusQy
... validators in IOTA do not decide what is included in the ledger, but only decide which of several double spends should be confirmed. Honest transactions are confirmed simply by having other transactions reference them ...

HusQy
... and the "validators" are not even asked. As for the "dust problem", this is indeed something that is a bigger problem for IOTA than for other DLTs because we have no fees, but it is also not an unsolvable problem. Bitcoin initially has a ...

HusQy
Solved similar problem by declaring outputs with a minimum amount of 5430 satoshis as invalid ( github.com/Bitcoin/Bitcoi…). A similar solution where an address must contain a minimum amount is also conceivable for IOTA and we are discussing ...

HusQy
... several possibilities (including compressing dust using cryptographic methods). Contrary to your assumption, checking such a minimum amount is not slow but just as fast as checking a normal transaction. And mine ...

HusQy
... In my opinion this is no problem at all for IOTA's use case. The important thing is that you can send small amounts, but after IOTA is feeless it is also okay to expect the recipients to regularly send their payments on a ...

HusQy
... merge address. The wallets already do this automatically (sweeping) and for machines it is no problem to automate this process. So far this was not a problem because the TPS were limited but with the increased TPS throughput of ...

HusQy
... Chrysalis it becomes relevant and appropriate solutions are discussed and then implemented accordingly. I think that was the most important thing first and if you have further questions just write :)

HusQy
And to be very clear! I really appreciate you and your questions and don't see this as an attack at all! People who see such questions as inappropriate criticism should really ask whether they are still objective. I have little time at the moment because ...

HusQy
... my girlfriend is on tour and has to take care of our daughter, but as soon as she is back we can discuss these things in a video. I think that the concept of including the "real world" in the concepts of DLT is really exciting and ...

HusQy
... that would certainly be exciting to discuss in a joint video. But again, that's more of a vision than a specific plan for the immediate future. This would not work with blockchain anyway but IOTA would be compatible so why not think about such things.
-----------------------------------------------------------------------

HusQy
All good my big one :P But actually not that much has changed. There has always been the concept of "economic clustering" which is basically based on similar ideas. We are just now able to implement things like this for the first time.
----------------------------------------------------------------------------------

HusQy
Exactly. It would mean that addresses "cost" something but I would rather pay a few cents than fees for each transaction. And you can "take" this minimum amount with you every time you change to a new address.

HusQy
All good my big one :P But actually not that much has changed. There has always been the concept of "economic clustering" which is basically based on similar ideas. We are just now able to implement things like this for the first time.
-----------------------------------------------------------------------------------

Relax오늘 오전 1:17
Btw. Hans (sorry for interrupting this convo) but what make people say that IOTA is going the permissioned way because of your latest tweets? I don't get why some people are now forecasting that... Is it because of missing specs or do they just don't get the whole idea?

Hans Moog [IF]오늘 오전 1:20
its bullshit u/Relaxan identity based system would still be open and permissionless where everybody can choose the actors that they deem trustworthy themselves but thats anyway just sth that would be applicable with more adoption
[오전 1:20]
for now we use mana as a predecessor to an actual reputation system

Sissors오늘 오전 1:31
If everybody has to choose actors they deem trustworthy, is it still permissionless? Probably will become a bit a semantic discussion, but still

Hans Moog [IF]오늘 오전 1:34
Of course its permissionless you can follow your grandma if you want to :p

Sissors오늘 오전 1:36
Well sure you can, but you will need to follow something which has a majority of the voting power in the network. Nice that you follow your grandma, but if others dont, her opinion (or well her nodes opinion) is completely irrelevant

Hans Moog [IF]오늘 오전 1:37
You would ideally follow the people that are trustworthy rather than your local drug dealers yeah

Sissors오늘 오전 1:38
And tbh, sure if you do it like that is easy. If you just make the users responsible for only connection to trustworthy nodes

Hans Moog [IF]오늘 오전 1:38
And if your grandma follows her supermarket and some other people she deems trustworthy then thats fine as well
[오전 1:38]
+ you dont have just 1 actor that you follow

Sissors오늘 오전 1:38
No, you got a large list, since yo uwant to follow those which actually matter. So you jsut download a standard list from the internet

Hans Moog [IF]오늘 오전 1:39
You can do that
[오전 1:39]
Is bitcoin permissionless? Should we both try to become miners?
[오전 1:41]
I mean miners that actually matter and not find a block every 10 trillion years 📷
[오전 1:42]
If you would want to become a validator then you would need to build up trust among other people - but anybody can still run a node and issue transactions unlike in hashgraph where you are not able to run your own nodes(수정됨)
[오전 1:48]
Proof of Stake is also not trustless - it just has a builtin mechanism that downloads the trusted people from the blockchain itself (the richest dudes)

Sissors오늘 오전 1:52
I think most agree it would be perfect if every person had one vote. Which is pr oblematic to implement of course. But I really wonder if the solution is to just let users decide who to trust. At the very least I expect a quite centralized network

Hans Moog [IF]오늘 오전 1:53
of course even a trust based system would to a certain degree be centralized as not every person is equally trustworthy as for example a big cooperation
[오전 1:53]
but I think its gonna be less centralized than PoS or PoW
[오전 1:53]
but anyway its sth for "after coordicide"
[오전 1:54]
there are not enough trusted entities that are using DLT, yet to make such a system work reasonably well
[오전 1:54]
I think the reason why blockchain has not really started to look into these kind of concepts is because blockchain doesnt work with too many equally weighted validators
[오전 1:56]
I believe that DLT is only going to take over the world if it is actually "better" than existing systems and with better I mean cheaper, more secure and faster and PoS and PoW will have a very hard time to deliver that
[오전 1:56]
especially if you consider that its not only going to settle value transfers

Relax오늘 오전 1:57
I like this clear statements, it makes it really clear that DLT is still in its infancy

Hans Moog [IF]오늘 오전 1:57
currently bank transfers are order of magnitude cheaper than BTC or ETH transactions

Hans Moog [IF]오늘 오전 1:57
and we you think that people will adopt it just because its crypto then I think we are mistaken
[오전 1:57]
The tech needs to actually solve a problem
[오전 1:57]
and tbh. currently people use PayPal and other companies to settle their payments
[오전 1:58]
having a group of the top 500 companies run such a service together is already much better(수정됨)
[오전 1:58]
especially if its fast and feeless
[오전 2:02]
and the more people use it, the more decentralized it actually becomes
[오전 2:02]
because you have more trustworthy entities to choose of

Evaldas [IF]오늘 오전 2:08
"in the greed of miners we trust"


submitted by btlkhs to Iota [link] [comments]

A rule to punish miners for accepting "wrong" versions of conflicting transactions is unnecessary and would be detrimental to Bitcoin Cash - Change my mind.

A rule to punish miners for accepting "wrong" versions of conflicting transactions is unnecessary and would be detrimental to Bitcoin Cash.
The thesis is a generalized response to a contrary opinion advocated by many in the BCH community and stated by u/jessquit as:
It is needed to have a rule to punish dishonest miners who accept bribes for hiding and mining double spending transactions.
My primary supporting arguments are as follows:
  1. Bitcoin was designed specifically as a solution to the double-spending problem. That is its primary function and it is highly effective at that task. If the relative validity of conflicting transactions can be known before confirmation, the double-spending problem would no longer apply and Bitcoin would be an unnecessary and expensive duplication of effort. Bitcoin's structure of incentives would be radically impacted by the devaluation of its primary function.
  2. There is no natural, objective metric to assess relative validity between sets of conflicting, unconfirmed transactions. The assessment is fundamentally and inescapably subjective. The intrinsic necessity of participant autonomy in a permissionless system guarantees that subjectivity cannot be avoided.
  3. Bitcoin succeeds in its capacity as a solution to the double-spending problem in large part, if not primarily, because it treats any property which cannot be objectively determined within the context of a distributed system as arbitrary and inconsequential to validity. No attempt is made to ensure the "correctness" of subjective properties while confirming transactions. Bitcoin cannot provide a reliable and secure solution for the double-spending problem if a majority of miners judge relative validity of conflicting transactions based on subjective properties.
Change my mind.
submitted by cryptocached to btc [link] [comments]

My college essay on Bitcoin and computers. First Draft. Thought you all might like this.

I always thought computers were simple. At their fundamental level, they are just 1s and 0s. An invisible dance of yes’s and no’s running through a sheet of silicon at billions of times per second. Computers are amazing and unique machines that will forever be apart of our lives. Our sheer dependence on computers motivated me to research the topic? As my understanding of this concept grew, so did my curiosity. I started researching computers as much as I could. I would spend hours a day browsing Youtube and reading articles just to satisfy my interest. That’s why when my dad first brought up the topic of bitcoin during my freshman year, I wasn’t surprised to hear his enthusiasm. I had learned much about this currency over my couple years of research, but I knew very little about how to actually make money off it. He had been tracking the price for a few months and was considering buying a few, just to see what would happen. Little did either of us know; the price of this virtual coin would multiply nearly 30 times in just a few short months.
A few weeks passed and eventually he brought up the topic of buying bitcoin again. His initial interest inspired me to look more into currency and how it worked. I told my dad there was another way to make money off of bitcoins: Bitcoin miners. These impressive and powerful computers are precisely optimized to earn these coins, and I knew I could make one. I explained how this was my once in a lifetime opportunity, like how he explained to me that he missed out on investing in Apple in the 80s. “It could be a money-printing machine,” I joked. With our excitement peaked, we decided to split the $2,000 investment 50/50, and I started the buying process.
I started the process by buying the parts of the machine. I had learned that like Legos, a computer consists of simple components to make the whole. However, unlike an ordinary everyday computer, ours would have a concentrated task. Mining bitcoin is not a complicated process for a computer to do. In essence, by completing simple math problems as quickly as possible, a computer process’ bitcoin transactions from around the world and is rewarded in a tiny fraction of a coin. As more and more transactions take place, the higher the demand for processing, and the higher the reward.
I was lucky enough to know how to build the computer. However, what I was not prepared for was the constant troubleshooting and maintenance I would have to give to this project. Sometimes the computer would simply turn off randomly, sometimes a part was not detected, and other times it merely just ran at half its optimized rate. I learned how to fix issues where there was no logical reason for the problem. Like a calculator, I always thought a computer could never mess up. My hundreds of hours of troubleshooting and blind hope quickly changed my view. I put a vast amount of free time into the project, knowing that potential it had. After lots of hard work, long nights, and determination, I had finally completed my dream project.
I was proud of what I had created. The computer was placed in my room and was like a pet. The loud but rhythmic fans helped me fall asleep, and the heat kept me warm during the winter. From school, I would monitor the machine, and if it had run into an error, I would simply restart it from my phone. My plan was working, and in a little over half a year, our investment should turn into profit. In only a few months, we were already halfway to making our money back. We were lucky because the price of bitcoin itself had doubled since we started, going from nearly $10,000 to $20,000 in a few short months, but as I looked at my account, I had no bitcoin. A few days earlier, hackers had stolen $64 million dollars from the company I mined with.
I felt like a victim. I had done everything right. I built the computer perfectly, I managed everything, I put the time in, and I put the effort in. I was robbed, and I was discouraged. Forced with no other option, we restarted our operation. Bitcoin was still increasing in price, we thought, so there was no reason to stop now. Our operation had restarted and was going well, but for the first time since we started, the price of bitcoin was not doing so well. The bubble was about to burst. It began with my hack, which made national news and hurt the price. Although the price recovered in a few weeks, it was going down again, fast. Believing it would improve, my dad and I decided to hold and not sell. A month later, Bitcoin was back to $8,000 per coin. The fad was over, and we couldn’t even make a profit over our cost of electricity. Again, I was robbed. I did nothing wrong and still lost almost everything. I decided to put the computer in a box and wait a few months; however, the wait was worthless. The coin plateaued at about $10,000, and it simply was not sustainable to continue mining. A year later, we sold the computers for parts and managed to make back about half our initial investment. It was over.
I had lost over $1,000 and months of time and effort. However, as I moved on and started to reflect on the experience, I was the winner. I learned so much about computers and how they operate. In the end, I had learned many skills, from patience and compassion to planning and researching. I had learned not only to build a computer but to manage systems and multitask. I learned countless lessons and gained essential and unique skills that I hope will carry me throughout life. This unique experience has taught me to always keep trying at what I believe in. There’s always an award for doing whatever I think is right. I hope to bring these beliefs and lessons with me throughout life, as I learn and grow from what I was taught. Whenever people ask me what computers are, I always laugh and explain how a computer is just a bunch of simple lego bricks working together to do complicated tasks. However, inside I still have trouble answering this simple question. It is merely just parts working together, but a computer is so much more complicated and beautiful than that. Honestly, I still don’t understand them.
submitted by NetgearX6S4000 to Bitcoin [link] [comments]

Can Bitcoin Scale?

You have some bitcoins in your wallet and want to spend them on your daily purchases. But what would that look like in a world where Visa, Mastercard and other financial services still dominate the market?
The ability for bitcoin to compete with other payment systems has long been up for debate in the cryptocurrency community. When Satoshi Nakamoto programmed the blocks to have a size limit of approximately 1MB each to prevent network spam, he also created the problem of bitcoin illiquidity.
Since each block takes an average of 10 minutes to process, only a small number of transactions can go through at a time. For a system that many claimed could replace fiat payments, this was a big barrier. While Visa handles around 1,700 transactions a second, bitcoin could process up to 7. An increase in demand would inevitably lead to an increase in fees, and bitcoin’s utility would be limited even further.
The scaling debate has unleashed a wave of technological innovation in the search of workarounds. While significant progress has been made, a sustainable solution is still far from clear.
A simple solution initially appeared to be an increase in the block size. Yet that idea turned out to be not simple at all.
First, there was no clear agreement as to how much it should be increased by. Some proposals advocated for 2MB, another for 8MB, and one wanted to go as high as 32MB.
The core development team argued that increasing the block size at all would weaken the protocol’s decentralization by giving more power to miners with bigger blocks. Plus, the race for faster machines could eventually make bitcoin mining unprofitable. Also, the number of nodes able to run a much heavier blockchain could decrease, further centralizing a network that depends on decentralization.
Second, not everyone agrees on this method of change. How do you execute a system-wide upgrade when participation is decentralized? Should everyone have to update their bitcoin software? What if some miners, nodes and merchants don’t?
And finally, bitcoin is bitcoin, why mess with it? If someone didn’t like it, they were welcome to modify the open-source code and launch their own coin.
One of the earliest solutions to this issue was proposed by developer Pieter Wiulle in 2015. It’s called Segregated Witness, or SegWit.
This process would increase the capacity of the bitcoin blocks without changing their size limit, by altering how the transaction data was stored.
SegWit was deployed on the bitcoin network in August 2017 via a soft fork to make it compatible with nodes that did not upgrade. While many wallets and other bitcoin services are gradually adjusting their software, others are reluctant to do so because of the perceived risk and cost.
Several industry players argued that SegWit didn’t go far enough – it might help in the short term, but sooner or later bitcoin would again be up against a limit to its growth.
In 2017, coinciding with CoinDesk’s Consensus conference in New York, a new approach was revealed: Segwit2X. This idea – backed by several of the sector’s largest exchanges – combined SegWit with an increase in the block size to 2MB, effectively multiplying the pre-SegWit transaction capacity by a factor of 8.
Far from solving the problem, the proposal created a further wave of discord. The manner of its unveiling (through a public announcement rather than an upgrade proposal) and its lack of replay protection (transactions could happen on both versions, potentially leading to double spending) rankled many. And the perceived redistribution of power away from developers towards miners and businesses threatened to cause a fundamental split in the community.
Other technological approaches are being developed as a potential way to increase capacity.
Schnorr signatures offer a way to consolidate signature data, reducing the space it takes up within a bitcoin block (and enhancing privacy). Combined with SegWit, this could allow a much greater number of transactions, without changing the block size limit
And work is proceeding on the lightning network, a second layer protocol that runs on top of bitcoin, opening up channels of fast microtransactions that only settle on the bitcoin network when the channel participants are ready.
Adoption of the SegWit upgrade is slowly spreading throughout the network, increasing transaction capacity and lowering fees.
Progress is accelerating on more advanced solutions such as lightning, with transactions being sent on testnets (as well as some using real bitcoin). And the potential of Schnorr signatures is attracting increasing attention, with several proposals working on detailing functionality and integration.
While bitcoin’s use as a payment mechanism seems to have taken a back seat to its value as an investment asset, the need for a greater number of transactions is still pressing as the fees charged by the miners for processing are now more expensive than fiat equivalents. More importantly, the development of new features that enhance functionality is crucial to unlocking the potential of the underlying blockchain technology.
submitted by hackatoshi to u/hackatoshi [link] [comments]

The White Dragon : A Canadian Dragon Portfolio

Alright guys, Ive been working on this for a while and a post on here by a guy describing his portfolio here was the final kick in the ass for me to put this together. I started writing this to summarize what Im doing for my friends who are beginners, and also for me to make some sense of it for myself
Hopefully parts of it are useful to you, and also ideally you guys can point out errors or have a suggestion or two. I'm posting this here as opposed to investing or canadianinvestor (blech) because they're just gonna tell me to buy an index fund.
This first section is a preamble describing the Canadian tax situation and why Im doing things the way that I am. Feel free to skip it if you dont care about that. Also, there might be mistake regarding what the laws are here so dont take my word for it and verify it for yourself please.
So here in Canada we have two types of registered accounts (theres actually more but whatver). There is the TFSA "Tax Free Savings Account", and RRSP "Registered Retirement Savings Account"
For the sake of simplicity, from the time you turn 18 you are allowed to deposit 5k (it changes year to year based on inflation etc)in each of them. That "room" accumulates retroactively, so if you haventdone anything and are starting today and you are 30 you have around 60k you can put in each of them. The prevailing wisdom is that you should max out the TFSA first and you'll see why in a minute.

TFSA is post tax deposits, with no capital gains or other taxes applied to selling your securities, dividends or anything else. You can withdraw your gains at any time, and the amount that you withdraw is added to the "room" you have for the next year. So lets say I maxed out my TFSA contributions and I take out 20k today, on January of next year I can put back in 20k plus the 5 or whatever they allow for that year. You can see how powerful this is. Theres a few limitations on what is eligable to be held in the TFSA such as bitcoin/bitcoin ETFs, overseas stocks that arent listed on NYSE, TSX, london and a few others. You can Buy to Open and Sell to Close call and put options as well as write Covered Calls.

The RRSP is pre-tax deposits and is a tax deferred scheme. You deposit to lower your income tax burden (and hopefully drop below a bracket) but once you retire you will be taxed on anything you pull out. Withdrawing early has huge penalties and isnt recommended. You are however allowed to borrow against it for a down payment as a first time home buyer. The strategy with these is that a youngperson entering the workforce is likely to be in a fairly low tax bracket and (hopefully) earns more money as they get older and more skilled so the RRSP has more value the greater your pre-taxincome is. You can also do this Self Directed. Its not relevant to this strategy but I included it for the sake of context.
Non registered accounts ( or any other situation, such as selling commercial real estate etc) is subject to a capital gains tax. In so far as I understand it, you add all your gains and losses up at the end of the year. If its a positive number, you cut that number IN HALF and add it to your regular pre-tax income. So if I made 60k from the dayjob and 20k on my margin account that adds up to 70k that I get taxed on. if its a loss, you carry that forward into the next year. Theres no distinction between long term and short term. Also physical PMs are treated differently and I'll fill that part in later once I have the details down.
The reason why all that babble is important is that my broker Questrade, which isnt as good as IB (the only real other option up here as far as Im aware) has one amazing feature that no other broker has: "Margin Power"
If you have a TFSA and a Margin account with them, you can link them together and have your securities in the TFSA collateralise your Margin account. Essentially, when it comes to the Maintenance Excess of the Margin Account QT doesnt care if its in the TFSA *or* the Margin!
You can see how powerful this is.
------------------------------------------------------------------------------------------------------------------------------------------------
So as you can tell by the title, a lot of this is heavily inspired by Chris Cole's paper "The Allegory of the Hawk and the Serpent". You can read it here: https://www.artemiscm.com/welcome#research
Between it, his interviews and my mediocre options skills at the time my mind was blown. Unfortunately I didnt know how to do the Long Volatility part until after the crash in March but I've since then had nothing but time to scour the internet and learn as much as I could.
The way I interpret this isnt necessarily "what you should have right now", but what abstracted model they were able to backtest that gave them the best performance over the 90 years. Also, a lot of my portfolio I already had before I started trying to build this.
As such my allocations dont match the proportions he gave. Not saying my allocations are better, just showing where they are at this time.
I'm going to describe how I do Long Volatility at the end rather than the beginning since the way *I* do it wont make sense until you see the rest of the portflio.

Physical PMs 22%
I'm not sure wether he intended this to be straight up physical gold or include miners and royalty streaming companies so I will just keep this as physical.
I consider Silver to be a non-expiring call option on gold, so that can live here too. I am actually *very* overweight silver and my strategy is to convert a large portion of it to gold (mostly my bars) to gold as the ratio tightens up.
If youre into crypto, you can arguably say that has a place in this section.
If an ETF makes sense for part of your portfolio, I suggest the Sprott ones such as PHYS. Sprott is an honest business and they actually have the metal they say they have. If you have enough, you can redeem your shares from the Royal Canadian Mint. The only downside is that they dont have an options chain, so you cant sell covered calls etc. Simple enough I suppose.
One thing to bear in mind, there is a double edged sword with this class of assets. They're out of the system, theyre nobody's business but your own and theres no counter party. That unfortunately means that you cant lever against it for margin or sell covered calls etc. You can still buy puts though (more on that later)

Commodity Trend (CTA) 10%
https://youtu.be/tac8sWPZW0w
Patrick Ceresna gave a good presentation on what this strategy is. Until I watched this video I just thought it meant "buy commodities". A real CTA does this with futures also so aside from the way he showed, there are two other ETFs that are worth looking at.
COM - This is an explicit trend following ETF that follows a LONG/FLAT strategy instead of LONG/SHORT on a pile of commodity futures. So if they get a "sell" signal for oil or soybeans they sell what they have and go to cash.
COMT- Holds an assortment of different month futures in different commodities, as well as a *lot* of various related shares in producers. Its almost a one stop shop commodities portfolio. Pays a respectable dividend in December
If you want to break the "rules" of CTA, and include equities theres a few others that are also worth looking at
KOL- This is a coal ETF. The problems with it are that a lot of the holdings dont have much to do with coal. One of them is a tractor company. A lot of the companies are Chinese so theres a bit of a red flag.
Obviously Thermal Coal, the kind used for heating and powerplants isnt in vogue and wont be moving forward...but coking coal is used for steel manufacturing and that ain't going anywhere. The dividend is huge, pays out in December. A very very small position might be worth the risk.
Uranium- I'm in URA because thats the only way for me to get exposure to Kazatoprom (#1 producer), which is 20% of the holdings. The other 20% is Cameco (#2 producer)and then its random stuff.
Other than that I have shares in Denison which seems like its a good business with some interesting projects underway. I'm still studying the uranium space so I dont really have much to say about it of any value.
RSX- Russia large caps. If you dont want to pick between the myriad of undervalued, high dividend paying commodity companies that Russia has then just grab this. It only pays in December but it has a liquid options chain so you can do Covered Calls in the meantime if you want.
NTR- Nutrien, canadian company that was formed when two others merged. They are now the worlds largest potash producer. Pretty good dividend. They have some financial difficulties and the stocks been in a downtrend forever. I feel its a good candidate to watch or sell some puts on.
I'm trying to come up with a way to play agriculture since this new phase we're going to be entering is likely to cause huge food shortages.

EURN and NAT- I got in fairly early on the Tanker hype before it was even hype as a way to short oil but I got greedy and lost a lot of my gains. I pared down my position and I'm staying for the dividend.
If you get an oil sell signal, this might be a way to play that still.

Fixed Income/Bonds 10%

Now, I am not a bond expert but unless youre doing some wacky spreads with futures or whatever... I dont see much reason to buy government debt any more. If you are, youre basically betting that they take rates negative. Raoul Pal of Real Vision is pretty firm in his conviction that this will happen. I know better than to argue with him but I dont see risk/reward as being of much value.
HOWEVER, I found two interesting ETFs that seem to bring something to this portfolio
IVOL- This is run by Nancy Davis, and is comprised of TIPS bonds which are nominally inflation protected (doubt its real inflation but whatever) overlayed with some OTC options that are designed to pay off big if the Fed loses control of the long end of the yield curve, which is what might happen during a real inflation situation. Pays out a decent yield monthly
TAIL- This is a simpler portfolio of 10yr treasuries with ladder of puts on the SPX. Pays quarterly.

Equities 58% (shared with options/volatility below)
This is where it gets interesting, obviously most of this is in mining shares but before I get to those I found some interesting stuff that I'm intending to build up as I pare down my miners when the time comes to start doing that.
VIRT- I cant remember where I saw this, but people were talking about this as a volatility play. Its not perfect, but look at the chart compared to SPY. Its a HFT/market making operation, the wackier things get the more pennies they can scalp. A 4% dividend isnt shabby either.
FUND- This is an interesting closed end fund run by Whitney George, one of the principals at Sprott. He took it with him when he joined the company. Ive read his reports and interviews and I really like his approach to value and investing. He's kind of like if Warren Buffett was a gold bug. Theres 120 holdings in there, mostly small caps and very diverse...chicken factories, ball bearings all kinds of boring ass shit that nobody knows exists. Whats crucial is that most of it "needs to exist". Between him, his family and other people at Sprott they control 40% or so of the shares, so they definitely have skin in the game. Generous dividend.
ZIG- This is a "deep value" strategy fund, run by Tobias Carlisle. He has a fairly simple valuation formula called the Acquirer's Multiple that when he backtested it, is supposed to perform very well. He did an interview with Chris Cole on real Vision where he discusses how Value and Deep Value havent done well recently, but over the last 100 years have proven to be very viable strategies. If we feel that theres a new cycle brewing, then this strategy may work again moving forward.

I want to pause and point out something here, Chris Cole, Nassim Taleb and the guys at Mutiny Fund spend a lot of effort explaining that building a portfolio is a lot like putting together a good basketall team. They need to work together, and pick up each others slack
A lot of the ETFs I'm listing here are in many ways portfolios in and of themselves and are *actively managed*. I specifically chose them because they follow a methodology that I respect but I can't do myself because I dont have the skill, temperament or access to.
The next one is a hidden gem and ties into this. I'm not sure how much more upside there is in this one but man was I surprised.
SII- Sprott Inc. I *never* see people listing this stock in their PMs portfolios. A newsletter I'm subscribed to described this stock as the safest way to play junior miners. Their industry presence, intellectual capital and connections means that they get *the best* private placement deals in the best opportunities. I cant compete with a staff like theirs and I'm not going to try. I bought this at 2.50, and I liked the dividend. Since then they did a reverse split to get on the NYSE and like the day after the stock soared.
When it comes to mining ETFS I like GOAU and SILJ the best. None of their major holdings are dead weight companies that are only there because of market cap. I dont want Barrick in my portfolio etc.
SGDJ is a neat version of GDXJ.
Aside from that my individual miners/royalty companies are (no particular order)
MMX
SAND
PAAS
PGM
AUM
AG
MUX
RIO- Rio2 on the tsx, not rio tinto
KTN
KL
Options/Volatility: varies
So this is where we get to the part about options, Volatility and how I do it. I started out in the options space with The Wheel strategy and the Tastytrade approach of selling premium. The spreads and puts I sell, are on shares listed above, in fact some of those I dont hold anymore.
Theres tons of stuff on this in thetagang and options so I wont go into a whole bunch (and you shouldnt be learning the mechanics from me anyway) but theres one thing I want to go over before it gets wild.
If I sell a Cash Secured Put, from a risk management perspective its identical to just buying 100 shares of the underlying security. You are equally "Short Vol" as well, it just that with options
its a little more explicit with the Greeks and everything. But if I use my margin that I was talking about earlier, then I can still collect the premium and the interest doesnt kick in unless Im actually assigned the shares.
But if I sell too many puts on KL or AG, and something happens where the miners get cut down (and lets be real, they all move together) my margin goes down and then I get assigned and kaboom...my account gets blown up
So what I need to do, is balance out the huge Short Vol situation in my portfolio, be net Long Vol and directly hedge my positions. Since the overwhelming majority of my equities are all tied to bullion this is actually a very easy thing to do.

Backspreads
https://youtu.be/pvX5_rkm5x0
https://youtu.be/-jTvWOGVsK8
https://youtu.be/muYjjm934iY

So I set this up so the vast majority of my margin is tied up in these 1-2 or even 1-3 ratio put spreads that *I actually put on for a small credit*, and roll them every once in a while. I run them on SLV, and GDX.
I keep enough room on my margin so I can withstand a 10% drawdown before it sets off the long end of the spreads and then I can ride it out until it turns around and we keep the PM bull market going.
Theres another cool spread I've been using, which is a modified Jade Lizard; if already hold shares, I'll sell a put, sell a covered call, and use some of the premium to buy a longer dated call. Ive been running this on AG mostly.
I have a few more spreads I can show you but Im tired now so it'll have to wait for later.
As I said multiple times, I do intend to trim these miners later but now isnt the time for that IMO. I'm also monitoring this almost full time since I have an injury and have nothing better to do until I heal :p
submitted by ChudBuntsman to pmstocks [link] [comments]

Bull market is back… Another wave of hacker attacks starts again?

Bull market is back… Another wave of hacker attacks starts again?

The picture from COINDESK related reports
On Aug. 2, Ethereum Classic Labs (ETC Labs) made an important announcement on ETC blockchain. ETC Labs said due to network attack, Ethereum Classic suffered a reorganization on August 1st. This has been the second attack on the Ethereum Classic Network this year.
Did renting-power cause the problem again?
In this ETC incident, one of the miners mined a large number of blocks offline. When the miner went online, due to its high computing power, and some versions of mining software did not support large-scale blockchain mergers, the consensus failed. Therefore, the entire network was out of sync, which produced an effect similar to a 51% attack. Finally, it caused the reorganization of 3693 blocks, starting at 10904147. The deposit and withdrawal between the exchanges and mining pools had to be suspended for troubleshooting during this period.
Media report shows that the blockchain reorganization may be caused by a miner (or a mining pool) disconnected during mining. Although it has been restored to normal after 15 hours of repair, it does reflect the vulnerability of the Proof of Work (PoW) network: once the computing power of the network is insufficient, the performance of one single mining pool can affect the entire network, which is neither distributed nor secure for the blockchain. Neither does it have efficiency.
At present, most consensus algorithms of blockchains are using PoW, which has been adopted over 10 years. In PoW, each miner solves a hashing problem. The probability to solve the problem successfully is proportional to the ratio of the miner’s hash power to the total hash power of mainnet.
Although PoW has been running for a long time, the attack model against PoW is very straightforward to understand, and has attracted people’s attention for a long time: such an attack, also known as double-spending attack, may happen when an attacker possesses 51% of the overall network hash power. The attacker can roll back any blocks in the blockchain by creating a longer and more difficult chain and as a result, modify the transaction information.
Since hash power can be rented to launch attacks, some top 30 projects have suffered from such attacks. In addition to this interference, the main attack method is through the computing power market such as Nice Hash. Hackers can rent hashpower to facilitate their attacks, which allows the computing power to rise rapidly in a short time and rewrite information. In January of this year, the Ethereum Classic was attacked once, and it was also the case that hackers can migrate computing power from the fiercely competitive Bitcoin and Ethereum, and use it to attack smaller projects, such as ETH Classic.

The picture shows the cost of attacking ETH Classic. It can be seen that it costs only $6,634 to attack ETH Classic for one hour.
The security of one network is no longer limited by whether miners within the main net take more than 51% of the total hash power, rather it is determined by whether the benevolent (non-hackers) miners take more than 51% of the total hash power from the pool of projects that use similar consensus algorithm. For example, the hash power of Ethereum is 176 TH/s and that of Ethereum Classic is 9 TH/s. In this way, if one diverts some hash power from Ethereum (176 TH/s) to Ethereum Classic, then one can easily launch a double-spending attack to Ethereum Classic. The hash power ratio for this attack between the two projects is 9/176 = 5.2%, which is a tiny number.

https://preview.redd.it/qj57vgmgb9f51.png?width=699&format=png&auto=webp&s=39c1efc3645f268dbf1c73e1b373d532d5461006
As one of the top 30 blockchain projects, Ethereum Classic has been attacked several times. Therefore, those small and medium-sized projects with low hash power and up-and-coming future projects are facing great potential risks. This is the reason that many emerging public chain projects abandon PoW and adopt PoS.
Proof of Stake (PoS) can prevent 51% attack but has problems of its own
In addition to PoW consensus, another well-adopted consensus algorithm is Proof of Stake (PoS). The fundamental concept is that the one who holds more tokens has the right to create the blocks. This is similar to shareholders in the stock market. The token holders also have the opportunities to get rewards. The advantages of PoS are: (i) the algorithm avoids wasting energy like that in PoW calculation; and (ii) its design determines that the PoS will not be subjected to 51% hash power attack since the algorithm requires the miner to possess tokens in order to modify the ledger. In this way, 51% attack becomes costly and meaningless.

https://preview.redd.it/rf65o1vhb9f51.png?width=685&format=png&auto=webp&s=9d7a9f9dab6ce823a224e91afa9d116310cf27e1
In terms of disadvantages, nodes face the problem of accessibility. PoS requires a permission to enter the network and nodes cannot enter and exit freely and thus lacks openness. It can easily be forked. In the long run, the algorithm is short of decentralization, and leads to the Matthew effect of accumulated advantages whereby miners with more tokens will receive more rewards and perpetuate the cycle.
More importantly, the current PoS consensus has not been verified for long-term reliability. Whether it can be as stable as the PoW system is yet to be verified. For some of the PoW public chains that are already launched, if they want to switch consensus, they need to do hard fork, which divides communities and carries out a long consensus upgrade and through which Ethereum is undergoing. Is there a safer and better solution?
QuarkChain Provide THE Solution: High TPS Protection + PoSW Consensus
For new-born projects, and some small or medium-sized projects, they all are facing the problem of power attack. For PoW-based chains, there are always some chains with lower hash power than others (ETC vs. ETH, BCH vs BTC), and thus the risk of attack is increased. In addition, the interoperability among the chains, such as cross-chain operation, is also a problem. In response, QuarkChain has designed a series of mechanisms to solve this problem. This can be summed up as a two-layer structure with a calculation power allocation and Proof of Staked Work (PoSW) consensus.
First of all, there is a layer of sharding, which can be considered as some parallel chains. Each sharding chain handles the transactions relatively independently. Such design forms the basis to ensure the performance of the entire system. To avoid security issues caused by the dilution of the hash power, we also have a root chain. The blocks of the root chain do not contain transactions, but are responsible for verifying the transactions of each shard. Relying on the hash power distribution algorithm, the hash power of the root chain will always account for 51% of the net. Each shard, on the other hand, packages their transactions according to their own consensus and transaction models.
Moreover, QuarkChain relies on flexibility that allows each shard to have different consensus and transaction models. Someone who wants to launch a double-spending attack on a shard that is already contained in the root chain must attack the block on the root chain, which requires calling the 51% hash power of the root chain. That is, if there are vertical field projects that open new shards on QuarkChain, even with insufficient hash power, an attacker must first attack the root chain if he or she wants to attack a new shard. The root chain has maintained more than 51% of the network’s hash power, which makes the attack very difficult.

https://preview.redd.it/rxpohs7jb9f51.png?width=674&format=png&auto=webp&s=e2df1307a1753542472f2b6da88e7a4022b30884

As illustrated in the diagram, if the attacker wants to attack the QuarkChain network, one would need to attack the shard and the root chain simultaneously.
PoW has achieved a high level of decentralization and has been verified for its stability for a long time. Combining PoW with the staking capability for PoS would make use of the advantages of both consensus mechanisms. That is what QuarkChain’s PoSW achieves exactly.
PoSW, which is Proof of Staked Work, is exclusively developed by QuarkChain and runs on shards. PoSW allows miners to enjoy the benefits of lower mining difficulty by staking original tokens (currently it’s 20 times lower). Conversely, if someone malicious with a high hash power and does not stake tokens on QuarkChain, he will be punishable by receiving 20 times the difficulty of the hash power, which increases the cost of attack. If the attacker stakes tokens in order to reduce the cost of attack, he/she needs to stake the corresponding amount of tokens, which may cost even more. Thus, the whole network is more secure.
Taking Ethereum Classics (ETC) as an example, if ETC uses the PoSW consensus, if there was another double-spending attack similar to the one in January, the attacker will need at least 110Th/s hash power or 650320 ETC (worth $3.2 million, and 8 TH/s hash power) to create this attack, which is far greater than the cost of the current attack on the network (8Th/s hash power) and revenue (219500 ETC).
Relying on multiple sets of security mechanisms, QuarkChain ensures its own security, while providing security for new shards and small and medium-sized projects. Its high level of flexibility also allows the projects to support different types of ledger models, transaction models, virtual machines, and token economics. Such great degrees of security and flexibility will facilitate the blockchain ecosystem to accelerate growth of innovative blockchain applications.
Learn more about QuarkChain
Website https://www.quarkchain.io
Telegram https://t.me/quarkchainio
Twitter https://twitter.com/Quark_Chain
Medium https://medium.com/quarkchain-official
Reddit https://www.reddit.com/quarkchainio/
Community https://community.quarkchain.io/
submitted by QuarkChain to quarkchainio [link] [comments]

Where is Bitcoin Going and When?

Where is Bitcoin Going and When?

The Federal Reserve and the United States government are pumping extreme amounts of money into the economy, already totaling over $484 billion. They are doing so because it already had a goal to inflate the United States Dollar (USD) so that the market can continue to all-time highs. It has always had this goal. They do not care how much inflation goes up by now as we are going into a depression with the potential to totally crash the US economy forever. They believe the only way to save the market from going to zero or negative values is to inflate it so much that it cannot possibly crash that low. Even if the market does not dip that low, inflation serves the interest of powerful people.
The impending crash of the stock market has ramifications for Bitcoin, as, though there is no direct ongoing-correlation between the two, major movements in traditional markets will necessarily affect Bitcoin. According to the Blockchain Center’s Cryptocurrency Correlation Tool, Bitcoin is not correlated with the stock market. However, when major market movements occur, they send ripples throughout the financial ecosystem which necessary affect even ordinarily uncorrelated assets.
Therefore, Bitcoin will reach X price on X date after crashing to a price of X by X date.

Stock Market Crash

The Federal Reserve has caused some serious consternation with their release of ridiculous amounts of money in an attempt to buoy the economy. At face value, it does not seem to have any rationale or logic behind it other than keeping the economy afloat long enough for individuals to profit financially and politically. However, there is an underlying basis to what is going on which is important to understand in order to profit financially.
All markets are functionally price probing systems. They constantly undergo a price-discovery process. In a fiat system, money is an illusory and a fundamentally synthetic instrument with no intrinsic value – similar to Bitcoin. The primary difference between Bitcoin is the underlying technology which provides a slew of benefits that fiat does not. Fiat, however, has an advantage in being able to have the support of powerful nation-states which can use their might to insure the currency’s prosperity.
Traditional stock markets are composed of indices (pl. of index). Indices are non-trading market instruments which are essentially summaries of business values which comprise them. They are continuously recalculated throughout a trading day, and sometimes reflected through tradable instruments such as Exchange Traded Funds or Futures. Indices are weighted by market capitalizations of various businesses.
Price theory essentially states that when a market fails to take out a new low in a given range, it will have an objective to take out the high. When a market fails to take out a new high, it has an objective to make a new low. This is why price-time charts go up and down, as it does this on a second-by-second, minute-by-minute, day-by-day, and even century-by-century basis. Therefore, market indices will always return to some type of bull market as, once a true low is formed, the market will have a price objective to take out a new high outside of its’ given range – which is an all-time high. Instruments can only functionally fall to zero, whereas they can grow infinitely.
So, why inflate the economy so much?
Deflation is disastrous for central banks and markets as it raises the possibility of producing an overall price objective of zero or negative values. Therefore, under a fractional reserve system with a fiat currency managed by a central bank – the goal of the central bank is to depreciate the currency. The dollar is manipulated constantly with the intention of depreciating its’ value.
Central banks have a goal of continued inflated fiat values. They tend to ordinarily contain it at less than ten percent (10%) per annum in order for the psyche of the general populace to slowly adjust price increases. As such, the markets are divorced from any other logic. Economic policy is the maintenance of human egos, not catering to fundamental analysis. Gross Domestic Product (GDP) growth is well-known not to be a measure of actual growth or output. It is a measure of increase in dollars processed. Banks seek to produce raising numbers which make society feel like it is growing economically, making people optimistic. To do so, the currency is inflated, though inflation itself does not actually increase growth. When society is optimistic, it spends and engages in business – resulting in actual growth. It also encourages people to take on credit and debts, creating more fictional fiat.
Inflation is necessary for markets to continue to reach new heights, generating positive emotional responses from the populace, encouraging spending, encouraging debt intake, further inflating the currency, and increasing the sale of government bonds. The fiat system only survives by generating more imaginary money on a regular basis.
Bitcoin investors may profit from this by realizing that stock investors as a whole always stand to profit from the market so long as it is managed by a central bank and does not collapse entirely. If those elements are filled, it has an unending price objective to raise to new heights. It also allows us to realize that this response indicates that the higher-ups believe that the economy could crash in entirety, and it may be wise for investors to have multiple well-thought-out exit strategies.

Economic Analysis of Bitcoin

The reason why the Fed is so aggressively inflating the economy is due to fears that it will collapse forever or never rebound. As such, coupled with a global depression, a huge demand will appear for a reserve currency which is fundamentally different than the previous system. Bitcoin, though a currency or asset, is also a market. It also undergoes a constant price-probing process. Unlike traditional markets, Bitcoin has the exact opposite goal. Bitcoin seeks to appreciate in value and not depreciate. This has a quite different affect in that Bitcoin could potentially become worthless and have a price objective of zero.
Bitcoin was created in 2008 by a now famous mysterious figure known as Satoshi Nakamoto and its’ open source code was released in 2009. It was the first decentralized cryptocurrency to utilize a novel protocol known as the blockchain. Up to one megabyte of data may be sent with each transaction. It is decentralized, anonymous, transparent, easy to set-up, and provides myriad other benefits. Bitcoin is not backed up by anything other than its’ own technology.
Bitcoin is can never be expected to collapse as a framework, even were it to become worthless. The stock market has the potential to collapse in entirety, whereas, as long as the internet exists, Bitcoin will be a functional system with a self-authenticating framework. That capacity to persist regardless of the actual price of Bitcoin and the deflationary nature of Bitcoin means that it has something which fiat does not – inherent value.
Bitcoin is based on a distributed database known as the “blockchain.” Blockchains are essentially decentralized virtual ledger books, replete with pages known as “blocks.” Each page in a ledger is composed of paragraph entries, which are the actual transactions in the block.
Blockchains store information in the form of numerical transactions, which are just numbers. We can consider these numbers digital assets, such as Bitcoin. The data in a blockchain is immutable and recorded only by consensus-based algorithms. Bitcoin is cryptographic and all transactions are direct, without intermediary, peer-to-peer.
Bitcoin does not require trust in a central bank. It requires trust on the technology behind it, which is open-source and may be evaluated by anyone at any time. Furthermore, it is impossible to manipulate as doing so would require all of the nodes in the network to be hacked at once – unlike the stock market which is manipulated by the government and “Market Makers”. Bitcoin is also private in that, though the ledge is openly distributed, it is encrypted. Bitcoin’s blockchain has one of the greatest redundancy and information disaster recovery systems ever developed.
Bitcoin has a distributed governance model in that it is controlled by its’ users. There is no need to trust a payment processor or bank, or even to pay fees to such entities. There are also no third-party fees for transaction processing. As the ledge is immutable and transparent it is never possible to change it – the data on the blockchain is permanent. The system is not easily susceptible to attacks as it is widely distributed. Furthermore, as users of Bitcoin have their private keys assigned to their transactions, they are virtually impossible to fake. No lengthy verification, reconciliation, nor clearing process exists with Bitcoin.
Bitcoin is based on a proof-of-work algorithm. Every transaction on the network has an associated mathetical “puzzle”. Computers known as miners compete to solve the complex cryptographic hash algorithm that comprises that puzzle. The solution is proof that the miner engaged in sufficient work. The puzzle is known as a nonce, a number used only once. There is only one major nonce at a time and it issues 12.5 Bitcoin. Once it is solved, the fact that the nonce has been solved is made public.
A block is mined on average of once every ten minutes. However, the blockchain checks every 2,016,000 minutes (approximately four years) if 201,600 blocks were mined. If it was faster, it increases difficulty by half, thereby deflating Bitcoin. If it was slower, it decreases, thereby inflating Bitcoin. It will continue to do this until zero Bitcoin are issued, projected at the year 2140. On the twelfth of May, 2020, the blockchain will halve the amount of Bitcoin issued when each nonce is guessed. When Bitcoin was first created, fifty were issued per block as a reward to miners. 6.25 BTC will be issued from that point on once each nonce is solved.
Unlike fiat, Bitcoin is a deflationary currency. As BTC becomes scarcer, demand for it will increase, also raising the price. In this, BTC is similar to gold. It is predictable in its’ output, unlike the USD, as it is based on a programmed supply. We can predict BTC’s deflation and inflation almost exactly, if not exactly. Only 21 million BTC will ever be produced, unless the entire network concedes to change the protocol – which is highly unlikely.
Some of the drawbacks to BTC include congestion. At peak congestion, it may take an entire day to process a Bitcoin transaction as only three to five transactions may be processed per second. Receiving priority on a payment may cost up to the equivalent of twenty dollars ($20). Bitcoin mining consumes enough energy in one day to power a single-family home for an entire week.

Trading or Investing?

The fundamental divide in trading revolves around the question of market structure. Many feel that the market operates totally randomly and its’ behavior cannot be predicted. For the purposes of this article, we will assume that the market has a structure, but that that structure is not perfect. That market structure naturally generates chart patterns as the market records prices in time. In order to determine when the stock market will crash, causing a major decline in BTC price, we will analyze an instrument, an exchange traded fund, which represents an index, as opposed to a particular stock. The price patterns of the various stocks in an index are effectively smoothed out. In doing so, a more technical picture arises. Perhaps the most popular of these is the SPDR S&P Standard and Poor 500 Exchange Traded Fund ($SPY).
In trading, little to no concern is given about value of underlying asset. We are concerned primarily about liquidity and trading ranges, which are the amount of value fluctuating on a short-term basis, as measured by volatility-implied trading ranges. Fundamental analysis plays a role, however markets often do not react to real-world factors in a logical fashion. Therefore, fundamental analysis is more appropriate for long-term investing.
The fundamental derivatives of a chart are time (x-axis) and price (y-axis). The primary technical indicator is price, as everything else is lagging in the past. Price represents current asking price and incorrectly implementing positions based on price is one of the biggest trading errors.
Markets and currencies ordinarily have noise, their tendency to back-and-fill, which must be filtered out for true pattern recognition. That noise does have a utility, however, in allowing traders second chances to enter favorable positions at slightly less favorable entry points. When you have any market with enough liquidity for historical data to record a pattern, then a structure can be divined. The market probes prices as part of an ongoing price-discovery process. Market technicians must sometimes look outside of the technical realm and use visual inspection to ascertain the relevance of certain patterns, using a qualitative eye that recognizes the underlying quantitative nature
Markets and instruments rise slower than they correct, however they rise much more than they fall. In the same vein, instruments can only fall to having no worth, whereas they could theoretically grow infinitely and have continued to grow over time. Money in a fiat system is illusory. It is a fundamentally synthetic instrument which has no intrinsic value. Hence, the recent seemingly illogical fluctuations in the market.
According to trade theory, the unending purpose of a market or instrument is to create and break price ranges according to the laws of supply and demand. We must determine when to trade based on each market inflection point as defined in price and in time as opposed to abandoning the trend (as the contrarian trading in this sub often does). Time and Price symmetry must be used to be in accordance with the trend. When coupled with a favorable risk to reward ratio, the ability to stay in the market for most of the defined time period, and adherence to risk management rules; the trader has a solid methodology for achieving considerable gains.
We will engage in a longer term market-oriented analysis to avoid any time-focused pressure. The Bitcoin market is open twenty-four-hours a day, so trading may be done when the individual is ready, without any pressing need to be constantly alert. Let alone, we can safely project months in advance with relatively high accuracy. Bitcoin is an asset which an individual can both trade and invest, however this article will be focused on trading due to the wide volatility in BTC prices over the short-term.

Technical Indicator Analysis of Bitcoin

Technical indicators are often considered self-fulfilling prophecies due to mass-market psychology gravitating towards certain common numbers yielded from them. They are also often discounted when it comes to BTC. That means a trader must be especially aware of these numbers as they can prognosticate market movements. Often, they are meaningless in the larger picture of things.
  • Volume – derived from the market itself, it is mostly irrelevant. The major problem with volume for stocks is that the US market open causes tremendous volume surges eradicating any intrinsic volume analysis. This does not occur with BTC, as it is open twenty-four-seven. At major highs and lows, the market is typically anemic. Most traders are not active at terminal discretes (peaks and troughs) because of levels of fear. Volume allows us confidence in time and price symmetry market inflection points, if we observe low volume at a foretold range of values. We can rationalize that an absolute discrete is usually only discovered and anticipated by very few traders. As the general market realizes it, a herd mentality will push the market in the direction favorable to defending it. Volume is also useful for swing trading, as chances for swing’s validity increases if an increase in volume is seen on and after the swing’s activation. Volume is steadily decreasing. Lows and highs are reached when volume is lower.
Therefore, due to the relatively high volume on the 12th of March, we can safely determine that a low for BTC was not reached.
  • VIX – Volatility Index, this technical indicator indicates level of fear by the amount of options-based “insurance” in portfolios. A low VIX environment, less than 20 for the S&P index, indicates a stable market with a possible uptrend. A high VIX, over 20, indicates a possible downtrend. VIX is essentially useless for BTC as BTC-based options do not exist. It allows us to predict the market low for $SPY, which will have an indirect impact on BTC in the short term, likely leading to the yearly low. However, it is equally important to see how VIX is changing over time, if it is decreasing or increasing, as that indicates increasing or decreasing fear. Low volatility allows high leverage without risk or rest. Occasionally, markets do rise with high VIX.
As VIX is unusually high, in the forties, we can be confident that a downtrend for the S&P 500 is imminent.
  • RSI (Relative Strength Index): The most important technical indicator, useful for determining highs and lows when time symmetry is not availing itself. Sometimes analysis of RSI can conflict in different time frames, easiest way to use it is when it is at extremes – either under 30 or over 70. Extremes can be used for filtering highs or lows based on time-and-price window calculations. Highly instructive as to major corrective clues and indicative of continued directional movement. Must determine if longer-term RSI values find support at same values as before. It is currently at 73.56.
  • Secondly, RSI may be used as a high or low filter, to observe the level that short-term RSI reaches in counter-trend corrections. Repetitions based on market movements based on RSI determine how long a trade should be held onto. Once a short term RSI reaches an extreme and stay there, the other RSI’s should gradually reach the same extremes. Once all RSI’s are at extreme highs, a trend confirmation should occur and RSI’s should drop to their midpoint.

Trend Definition Analysis of Bitcoin

Trend definition is highly powerful, cannot be understated. Knowledge of trend logic is enough to be a profitable trader, yet defining a trend is an arduous process. Multiple trends coexist across multiple time frames and across multiple market sectors. Like time structure, it makes the underlying price of the instrument irrelevant. Trend definitions cannot determine the validity of newly formed discretes. Trend becomes apparent when trades based in counter-trend inflection points continue to fail.
Downtrends are defined as an instrument making lower lows and lower highs that are recurrent, additive, qualified swing setups. Downtrends for all instruments are similar, except forex. They are fast and complete much quicker than uptrends. An average downtrend is 18 months, something which we will return to. An uptrend inception occurs when an instrument reaches a point where it fails to make a new low, then that low will be tested. After that, the instrument will either have a deep range retracement or it may take out the low slightly, resulting in a double-bottom. A swing must eventually form.
A simple way to roughly determine trend is to attempt to draw a line from three tops going upwards (uptrend) or a line from three bottoms going downwards (downtrend). It is not possible to correctly draw a downtrend line on the BTC chart, but it is possible to correctly draw an uptrend – indicating that the overall trend is downwards. The only mitigating factor is the impending stock market crash.

Time Symmetry Analysis of Bitcoin

Time is the movement from the past through the present into the future. It is a measurement in quantified intervals. In many ways, our perception of it is a human construct. It is more powerful than price as time may be utilized for a trade regardless of the market inflection point’s price. Were it possible to perfectly understand time, price would be totally irrelevant due to the predictive certainty time affords. Time structure is easier to learn than price, but much more difficult to apply with any accuracy. It is the hardest aspect of trading to learn, but also the most rewarding.
Humans do not have the ability to recognize every time window, however the ability to define market inflection points in terms of time is the single most powerful trading edge. Regardless, price should not be abandoned for time alone. Time structure analysis It is inherently flawed, as such the markets have a fail-safe, which is Price Structure. Even though Time is much more powerful, Price Structure should never be completely ignored. Time is the qualifier for Price and vice versa. Time can fail by tricking traders into counter-trend trading.
Time is a predestined trade quantifier, a filter to slow trades down, as it allows a trader to specifically focus on specific time windows and rest at others. It allows for quantitative measurements to reach deterministic values and is the primary qualifier for trends. Time structure should be utilized before price structure, and it is the primary trade criterion which requires support from price. We can see price structure on a chart, as areas of mathematical support or resistance, but we cannot see time structure.
Time may be used to tell us an exact point in the future where the market will inflect, after Price Theory has been fulfilled. In the present, price objectives based on price theory added to possible future times for market inflection points give us the exact time of market inflection points and price.
Time Structure is repetitions of time or inherent cycles of time, occurring in a methodical way to provide time windows which may be utilized for inflection points. They are not easily recognized and not easily defined by a price chart as measuring and observing time is very exact. Time structure is not a science, yet it does require precise measurements. Nothing is certain or definite. The critical question must be if a particular approach to time structure is currently lucrative or not.
We will measure it in intervals of 180 bars. Our goal is to determine time windows, when the market will react and when we should pay the most attention. By using time repetitions, the fact that market inflection points occurred at some point in the past and should, therefore, reoccur at some point in the future, we should obtain confidence as to when SPY will reach a market inflection point. Time repetitions are essentially the market’s memory. However, simply measuring the time between two points then trying to extrapolate into the future does not work. Measuring time is not the same as defining time repetitions. We will evaluate past sessions for market inflection points, whether discretes, qualified swings, or intra-range. Then records the times that the market has made highs or lows in a comparable time period to the future one seeks to trade in.
What follows is a time Histogram – A grouping of times which appear close together, then segregated based on that closeness. Time is aligned into combined histogram of repetitions and cycles, however cycles are irrelevant on a daily basis. If trading on an hourly basis, do not use hours.
  • Yearly Lows (last seven years): 1/1/13, 4/10/14, 1/15/15, 1/17/16, 1/1/17, 12/15/18, 2/6/19
  • Monthly Mode: 1, 1, 1, 1, 2, 4, 12
  • Daily Mode: 1, 1, 6, 10, 15, 15, 17
  • Monthly Lows (for the last year): 3/12/20 (10:00pm), 2/28/20 (7:09am), 1/2/20 (8:09pm), 12/18/19 (8:00am), 11/25/19 (1:00am), 10/24/19 (2:59am), 9/30/19 (2:59am), 8/29,19 (4:00am), 7/17/19 (7:59am), 6/4/19 (5:59pm), 5/1/19 (12:00am), 4/1/19 (12:00am)
  • Daily Lows Mode for those Months: 1, 1, 2, 4, 12, 17, 18, 24, 25, 28, 29, 30
  • Hourly Lows Mode for those Months (Military time): 0100, 0200, 0200, 0400, 0700, 0700, 0800, 1200, 1200, 1700, 2000, 2200
  • Minute Lows Mode for those Months: 00, 00, 00, 00, 00, 00, 09, 09, 59, 59, 59, 59
  • Day of the Week Lows (last twenty-six weeks):
Weighted Times are repetitions which appears multiple times within the same list, observed and accentuated once divided into relevant sections of the histogram. They are important in the presently defined trading time period and are similar to a mathematical mode with respect to a series. Phased times are essentially periodical patterns in histograms, though they do not guarantee inflection points
Evaluating the yearly lows, we see that BTC tends to have its lows primarily at the beginning of every year, with a possibility of it being at the end of the year. Following the same methodology, we get the middle of the month as the likeliest day. However, evaluating the monthly lows for the past year, the beginning and end of the month are more likely for lows.
Therefore, we have two primary dates from our histogram.
1/1/21, 1/15/21, and 1/29/21
2:00am, 8:00am, 12:00pm, or 10:00pm
In fact, the high for this year was February the 14th, only thirty days off from our histogram calculations.
The 8.6-Year Armstrong-Princeton Global Economic Confidence model states that 2.15 year intervals occur between corrections, relevant highs and lows. 2.15 years from the all-time peak discrete is February 9, 2020 – a reasonably accurate depiction of the low for this year (which was on 3/12/20). (Taking only the Armstrong model into account, the next high should be Saturday, April 23, 2022). Therefore, the Armstrong model indicates that we have actually bottomed out for the year!
Bear markets cannot exist in perpetuity whereas bull markets can. Bear markets will eventually have price objectives of zero, whereas bull markets can increase to infinity. It can occur for individual market instruments, but not markets as a whole. Since bull markets are defined by low volatility, they also last longer. Once a bull market is indicated, the trader can remain in a long position until a new high is reached, then switch to shorts. The average bear market is eighteen months long, giving us a date of August 19th, 2021 for the end of this bear market – roughly speaking. They cannot be shorter than fifteen months for a central-bank controlled market, which does not apply to Bitcoin. (Otherwise, it would continue until Sunday, September 12, 2021.) However, we should expect Bitcoin to experience its’ exponential growth after the stock market re-enters a bull market.
Terry Laundy’s T-Theory implemented by measuring the time of an indicator from peak to trough, then using that to define a future time window. It is similar to an head-and-shoulders pattern in that it is the process of forming the right side from a synthetic technical indicator. If the indicator is making continued lows, then time is recalculated for defining the right side of the T. The date of the market inflection point may be a price or indicator inflection date, so it is not always exactly useful. It is better to make us aware of possible market inflection points, clustered with other data. It gives us an RSI low of May, 9th 2020.
The Bradley Cycle is coupled with volatility allows start dates for campaigns or put options as insurance in portfolios for stocks. However, it is also useful for predicting market moves instead of terminal dates for discretes. Using dates which correspond to discretes, we can see how those dates correspond with changes in VIX.
Therefore, our timeline looks like:
  • 2/14/20 – yearly high ($10372 USD)
  • 3/12/20 – yearly low thus far ($3858 USD)
  • 5/9/20 – T-Theory true yearly low (BTC between 4863 and 3569)
  • 5/26/20 – hashrate difficulty halvening
  • 11/14/20 – stock market low
  • 1/15/21 – yearly low for BTC, around $8528
  • 8/19/21 – end of stock bear market
  • 11/26/21 – eighteen months from halvening, average peak from halvenings (BTC begins rising from $3000 area to above $23,312)
  • 4/23/22 – all-time high
Taken from my blog: http://aliamin.info/2020/
submitted by aibnsamin1 to Bitcoin [link] [comments]

College essay on bitcoin and computers. Thought you all might enjoy this.

I always thought computers were simple. At their fundamental level, they are just 1s and 0s. An invisible dance of yes’s and no’s running through a sheet of silicon at billions of times per second. Computers are amazing and unique machines that will forever be apart of our lives. Our sheer dependence on computers motivated me to research the topic? As my understanding of this concept grew, so did my curiosity. I started researching computers as much as I could. I would spend hours a day browsing Youtube and reading articles just to satisfy my interest. That’s why when my dad first brought up the topic of bitcoin during my freshman year, I wasn’t surprised to hear his enthusiasm. I had learned much about this currency over my couple years of research, but I knew very little about how to actually make money off it. He had been tracking the price for a few months and was considering buying a few, just to see what would happen. Little did either of us know; the price of this virtual coin would multiply nearly 30 times in just a few short months.
A few weeks passed and eventually he brought up the topic of buying bitcoin again. His initial interest inspired me to look more into currency and how it worked. I told my dad there was another way to make money off of bitcoins: Bitcoin miners. These impressive and powerful computers are precisely optimized to earn these coins, and I knew I could make one. I explained how this was my once in a lifetime opportunity, like how he explained to me that he missed out on investing in Apple in the 80s. “It could be a money-printing machine,” I joked. With our excitement peaked, we decided to split the $2,000 investment 50/50, and I started the buying process.
I started the process by buying the parts of the machine. I had learned that like Legos, a computer consists of simple components to make the whole. However, unlike an ordinary everyday computer, ours would have a concentrated task. Mining bitcoin is not a complicated process for a computer to do. In essence, by completing simple math problems as quickly as possible, a computer process’ bitcoin transactions from around the world and is rewarded in a tiny fraction of a coin. As more and more transactions take place, the higher the demand for processing, and the higher the reward.
I was lucky enough to know how to build the computer. However, what I was not prepared for was the constant troubleshooting and maintenance I would have to give to this project. Sometimes the computer would simply turn off randomly, sometimes a part was not detected, and other times it merely just ran at half its optimized rate. I learned how to fix issues where there was no logical reason for the problem. Like a calculator, I always thought a computer could never mess up. My hundreds of hours of troubleshooting and blind hope quickly changed my view. I put a vast amount of free time into the project, knowing that potential it had. After lots of hard work, long nights, and determination, I had finally completed my dream project.
I was proud of what I had created. The computer was placed in my room and was like a pet. The loud but rhythmic fans helped me fall asleep, and the heat kept me warm during the winter. From school, I would monitor the machine, and if it had run into an error, I would simply restart it from my phone. My plan was working, and in a little over half a year, our investment should turn into profit. In only a few months, we were already halfway to making our money back. We were lucky because the price of bitcoin itself had doubled since we started, going from nearly $10,000 to $20,000 in a few short months, but as I looked at my account, I had no bitcoin. A few days earlier, hackers had stolen $64 million dollars from the company I mined with.
I felt like a victim. I had done everything right. I built the computer perfectly, I managed everything, I put the time in, and I put the effort in. I was robbed, and I was discouraged. Forced with no other option, we restarted our operation. Bitcoin was still increasing in price, we thought, so there was no reason to stop now. Our operation had restarted and was going well, but for the first time since we started, the price of bitcoin was not doing so well. The bubble was about to burst. It began with my hack, which made national news and hurt the price. Although the price recovered in a few weeks, it was going down again, fast. Believing it would improve, my dad and I decided to hold and not sell. A month later, Bitcoin was back to $8,000 per coin. The fad was over, and we couldn’t even make a profit over our cost of electricity. Again, I was robbed. I did nothing wrong and still lost almost everything. I decided to put the computer in a box and wait a few months; however, the wait was worthless. The coin plateaued at about $10,000, and it simply was not sustainable to continue mining. A year later, we sold the computers for parts and managed to make back about half our initial investment. It was over.
I had lost over $1,000 and months of time and effort. However, as I moved on and started to reflect on the experience, I was the winner. I learned so much about computers and how they operate. In the end, I had learned many skills, from patience and compassion to planning and researching. I had learned not only to build a computer but to manage systems and multitask. I learned countless lessons and gained essential and unique skills that I hope will carry me throughout life. This unique experience has taught me to always keep trying at what I believe in. There’s always an award for doing whatever I think is right. I hope to bring these beliefs and lessons with me throughout life, as I learn and grow from what I was taught. Whenever people ask me what computers are, I always laugh and explain how a computer is just a bunch of simple lego bricks working together to do complicated tasks. However, inside I still have trouble answering this simple question. It is merely just parts working together, but a computer is so much more complicated and beautiful than that. Honestly, I still don’t understand them.
submitted by NetgearX6S4000 to computers [link] [comments]

Questions I have about Bitcoin

Is bitcoin really viable as a peer-to-peer electronic cash?
Due to high transaction costs and slow transaction speeds, how can we ever use bitcoin to purchase, for example, a Sprite and a bag of potato chips at a gas station? If I want to send a micropayment, for example, of 1000 sats on-chain I can pretty much forget about it because no miner will for and the ftransaction hangs out in the memepool indefinitely. I had a lot of hope for lightning network, but I am now starting to have doubts about its long-term success. What happens when someone using lightning wants to settling a microtransaction on the bitcoin blockchain?
How secure is bitcoin really?
Remember when cz binance wanted to people to thank him for not ordering a re-org to recover lost funds? Isn't bitcoin mining dangerously centralized? What if in the future there is a terrorist attack by government or other criminal orgs that involve bombing or burning large bitcoin mining facilities.
Satoshi writes in the white paper that we propose a solution to the double spending problem, but has this really been achieved? Double spends are still possible with a 51% attack, so what solution to double spending has been achieved. Can't large mining pools conspire to attack bitcoin.
These are concerns I have for the long-term viability and intrinsic value of bitcoin.
submitted by hooraydgb to Bitcoin [link] [comments]

People say you shouldn't trust third 3rd parties with your money such as banks, but couldn't miners and developers be considered 3rd parties when it comes to Bitcoin?

I mean think about it, if Bitmain and the rest of China keep grabbing more and more of the Bitcoin hashrate, they will essentially have full control over the Bitcoin network, and if the 5 main developers of Bitcoin want to, couldn't they centralize Bitcoin as well and jeopardize your money just like the big bad banks?
Please ease my mind, thank you.
submitted by Megalorye to CryptoCurrency [link] [comments]

Is there anything stopping a miner from implementing RBF on BCH?

If a miner is truly greedy, wouldn’t they want the most fees possible? If a greedy miner were to see two transactions with the same input, and one pays a higher fee, why would we not expect them to add the higher fee transaction to a potential block?
submitted by TheRealBeakerboy to btc [link] [comments]

Some informative responses from Colin and Andy from the just-concluded Nano AMA at the Atomic Wallet Telegram group

The AMA ran today from 13:00 - 14:20 UTC, with Colin and Andy. I've copied over some of their responses that I found give me better insight into Nano. Their responses are in italics. Responses to different questions are separated by double spaces. Colin's responses are listed first, followed by Andy's. Sorry I couldn't copy over the questions as well. I've added my comments in places.
From Colin:
PoW coins have done a good marketing that the energy expenditure makes your coins more secure but it’s really unnecessory. PoW coins need to continue expending work because if they stop, their security parameter erodes.
Nano has no such problem, once an election for a transaction is complete, it’s confirmed. If it sits there it stays confirmed and it doesn’t need any extra effort. Wow, put that way, Bitcoin seems unsustainable in the long term when there is an alternative like Nano.

Yes the circulating supply is forever like this. The reason it can’t change is because nano transactions can only send your current balance or less to someone else, this means new coins can never be injected in to the system. Interesting design reason new Nano can't be minted.

Volatility is a focus with all cryptocurrencies and it comes from low volume, it’s not intrinsic to cryptocurrency itself. To cure low volume our focus is integrating it in to parts of the economy where it solves a problem, rather than just emulating credit cards etc.
Not having fees in the network puts us in a very good position for buying beer, for example. Typically credit card providers will charge 2-5% for a purchase, maybe even more, and it tight margin businesses that make 2-5% profit anyway, this is huge. A lot of Reddit discussion on crypto adoption considers only user experience and overlooks benefits to merchants.

Nano is purpose built to be the fastest and most decentralized currency around. Our transactions settle in less than 1 second and it’s all done on a network with no fees, and a tiny environmental footprint
Decentralization is an essential focus for us, many other cryptocurrencies can get fast or low cost, but they can’t also maintain decentralization which I think we do very well.
Well the sustainability comes from 2 main parts. We have a laser sharp focus on being the most efficient currency. This means our development stays focused and eventually the amount of things going in to the code base will trend downward; once we’ve achieved the goal we just have to make things more efficient.
The second part of sustainability is our Open Representative Voting which is our replacement for PoW mining. We saw the energy expenditure as something that would come in conflict with any system that would attain high adoption so our goal was to get the same or better decentralization benefits and also have a low energy footprint. We think we achieved that goal as our representatives are all over the world under many different organizations. A healthy decentralized representative set is good for long term sustainability.

And on the simplicity, nano is probably one of the easiest cryptocurrencies to use. There are no fees to calculate, the UX impact of entering a fee is greatly understated. How much should the fee be? Does my grandma know what network load is? What does it mean with respect to fee?
Nano simply has accounts and balances, you send and it lands in their wallet in less than a second, nothing can be simpler.

We’re not looking to expand in to defi right now. I have some reservations about it’s viability. One thing I’ve noticed in my many years of seeing technology evolution is to not try and change 2 things at once. We don’t want to simultaneously change the currency people use and also change how finances are done. First change the currency, then change the finances.
I think Libra suffers from a market mis-assesment. Essentially what they’re claiming is be a multi-currency bank account for every facebook user. Getting users electronic bank accounts isn’t a technology problem, it’s a regulatory and logistics problem. Since Facebook is essentially being a bank for people, they’re going to be required to comply with KYC requirements. Sending/receiving isn’t going to be open as it is in cryptocurrency because of AML requirements. People are not going to have access to the system in remote areas because how do they deposit or more importantly withdraw local currency from their Libra accounts.
I think privacy is a big concern with our transactions and credit card purchases and it’s only getting worse. Letting Facebook/Libra know all your purchase history I think is a huge mistake.
I think it also doesn’t fundamentally solve the central banking problem where they can print more money and inflate the currency supply. I see this behavior as a fundamentally unethical thing that cryptocurrency solves and Libra is taking a huge step back on that.
I don’t see anything compelling about it and I don’t see long term viability.

I think disk usage is going to be a low concern long term. The goal with Nano is to be a widely used commercial grade currency so the representatives will be banks and other financial institutions, universities, and tech companies. Considering how much youtube, instagram, and other social media data is created each day, I don’t think the ledger size will be a long-term limiting factor. Looks like the role of hobbyists in running nodes will diminish with widening adoption.

Nano’s value is being the fastest, most efficient currency around. Entreprenuers make use of natural market incentives / natural efficiencies to make money on a business.
Cryptocurrency has distorted that term a bit with something more closely resembling subsidies. The transaction fees and block rewards are subsidizing the security parameter and processing prioritization. PoW chains need this subsidy because their security parameter costs a lot. Additionally we’ve seen miners work to limit the network’s throughput in order to rent-seek on the limited transaction space. Damn, talk about unaligned incentives between users and miners.
The people we’re looking for are the entreprenuers that know how to make use of a faster, lower cost currency.

Yes, having a fixed supply is an essential component of currency. If people can add more currency to the system, they’re taking value away from everyone else in that process. It’s unfair and unethical.
1 Nano actually can be divided down very small so there’s no risk of not having enough coins.

In this response, Colin is addressing a question about Steem and other dPoS systems. One major difference with Nano consensus is: having more Nano does not get you more Nano, there are no rewards for holding Nano. Holding nano doesn’t give people voting privledges on network changes, or any other centralizing component associated with holding.
Another big difference is voting in nano does not produce blocks, it chooses between conflicting blocks that a user publishes. If you don’t attempt to double-spend, your transactions cannot be voted against.

From Andy:
1. The faucet did indeed seed Nano's amazing international communities, and the contributions from around the world to the project have been unbelievable over that last 2.5 years. Communities are still active, engaged and building 💪
2. The effects of Nano being added to the Atomic Wallet (and other multi-currency wallets) is two fold. It increases the accessibility and convenience of storing Nano alongside other coins and also helps to disperse voting weight across a wider spread of representatives - increasing decentralization!

We certainly feel that Nano possesses far and away the best fundamentals, democratic approach to decentralization, and user experience.
Being fully distributed and operating on a the mainnet since 2015 is also very important, and puts Nano way ahead of many other projects making bold claims about future potential.
Nano is here today, and works as one would expect the digital money would!

Privacy is an attractive proposition to users of digital money for obvious reasons, it can be very important. Our position towards privacy is more conservative as we have seen many more hurdles to mainstream adoption being put in front of privacy-based projects.
With that being said, there are eyes towards the technical implications of introducing privacy, but it is extremely difficult to do this without incurring slowdowns to settlement times.
Throughout 2019 we were able to make significant progress in helping some of the more well-established cryptocurrency services such as exchanges, fiat gateways, payment platforms, and wallets- like Atomic 😄, to understand and integrate Nano. This proliferation of Nano across the space has ensured that it is increasingly more convenient for users and merchants to access and begin using Nano for payments.
submitted by Live_Magnetic_Air to nanocurrency [link] [comments]

A True Story ...

A True Story ... submitted by Egon_1 to btc [link] [comments]

"Blockchain is bigger than the Gutenberg Press and bigger than the Internet. Instead of creating 3rd party institutions which are corruptible, we're reducing things to mathematics and cryptographically protected algorithms." - Patrick Byrne CEO of Overstock.com

submitted by ColinTalksCrypto to btc [link] [comments]

Trying to understand the need for Avalanche when Sybil protection is a must

I'm currently trying to understand a few details of Avalanche. I think I understand most of the basics of how consensus is reached. However, the strict requirement for a Sybil protection mechanism bothers me. If in the end, a system is built that effectively protects against sybil attacks, is a complex system like Avalanche actually needed?
A simpler solution would be to let the sybil protected voters each vote on the first seen transaction and then propagate a message to the whole network. This message would contain a signature signed by the public key which is known through the sybil protection mechanism (e. G. An extra pubkey in coinbases).
Nodes would then receive these messages and simply count the number of valid messages that voted for one TX. If majority voted for TX1, we know that every other TX spending the same inputs is a double spend.
This removes a lot of the complexity and especially the need to query mining nodes. Which also removes the need to identify miners as Noone has to connect to these anymore.
I might have simply missed some crucial advantage that comes from the complexity in Avalanche, so please tell me if this is the case. Maybe Chris_Pacia can answer?
submitted by codablock to btc [link] [comments]

Hybrix: Blockchain for all chains

Third party services currently assist users to exchange one form of digital cash or asset for another, but a trusted third party is still required to mediate these transactions.
We propose a solution to the problem of these isolated digital currency systems using a meta-level transfer protocol with an extendable and modular design, making accessible any kind of ledger-based economy or other digital cash system for cross-blockchain and inter-systemic transactions.
Every hybrix protocol transaction yields profit to these respective ecosystems by paying transaction fees to their network supporting miners and stakers.
Technically Bitcoin earlier on had solved some of the problems of the reversibility of transactions and trust issues that plagued online commerce new players in the arena are offering replacements for Bitcoin's peer-to-peer payment solution.
Its transactions are stored in a data block inside the attachment section of a zero-value transaction on any distributed ledger system.
Transactions containing meta data pay the usual fees denominated in the base currency Our proposal is to create a protocol - called hybrix protocol -as a cross-ledger colored coin, making it technically borderless and not bound to a single ledger system.
Intersystemic transaction A transaction occurring between two distinct ledger systems.
Entanglement Informational connection between two transactions on separate ledger systems, that functionally relate them as a cross-ledger transaction.
Validator Network actor that analyses past transactions and makes available the legitimacy of these transactions according to the rules of the system protocol.
Double spend A transaction that illegitimately increases the money supply in a ledger system.
Immutability of past transactions attachment The data included with a transaction, sometimes called message or in the case of Bitcoin and its derived coins - OP RETURN. Primarily used on most ledger systems for annotation of the transaction.
Transactions have a unique transaction id OPRETURN An Bitcoin script opcode used to mark a transaction output as an attachment field for storing data 3 invalid.
Figure 2: The parsing function p parses the attachment of the base transaction into the required fields.
Intersystemic Transactions 3.2 Structured Data on a Ledger We define an electronic intersystemic token as a block of structured data that is inserted into the attachment section of a zerovalue transaction on a distributed ledger system.
The content of the attachment of transaction on a base ledger can be parsed into a second layer transaction of the meta ledger.
A parsing function p will extract the required meta transaction details from the base transactions attachment as well as using details from the base transaction that are still relevant.
Token ownership is secured by the underlying ledger system every time a transaction is done.
Each owner transfers their zero-value transaction containing the token data to another owner by digitally signing a hash of the previous transaction and the current transaction.
The only thing that is added to the recipe is the ledger symbol, and transaction hash of where the verification hash can be found.
Subsequently the token is minted on the same address using a followup transaction 3.
cross-ledger entangled transactions Other Types of Transactions tion and then choosing a branch that has not yet been validated.
When a transaction contains more data than a ledger system can handle in its attachmentstorage space, the transaction may be split up, and sent using a transaction accompaniedby tailing part transactions that complete thecontents of the entire operation 7.
A swap transaction is legitimate when the counterparty responds to a swap proposal using a signing transaction.
Finally a burn transaction returns spendable HRC1 token balance to address E on the Ethereum chain 9.
In case of a collision, validators will only accept the recipe that was proven first by way of the genesis transaction.
The older genesis transaction must also be recorded in the recipe, so the chain of mutations can be followed and approved by validators.
Validators check a new incoming recipe for validity first, by comparing its hashes with available data in the blockchain, and authenticating that the updated genesis transaction has been done using the same secret key as the first genesis transaction.
Validation of Transactions DR AF T 6 5 6.1 Mutation of Monetary Supply Validation as a Service External validation should be handled in a decentralized manner using a consensus amongst multiple validator nodes.
If a transaction fee is enforced by the ruleset, the supply is subtracted from on every transaction.
7 7 Examinations 7.1 Validating the Validators Validators need to be rigorously examined in order to find out if they are properly doing their job of validating transactions on the chains.
In the case that all is going according to plan validators check the transactions and record their findings for the public truthfully.
In sending a transaction they can opt to pay a higher fee, and this will result in more validators eager to validate the user's chain of transactions.
A decentralized consensus state database maintained by a pool of validators will consist of a sub tree Tn0 where n increments with each state update, providing a snapshot of the agreed upon valid transaction tree.
To ensure the recovery from a 51% attack on any one single chain, snapshotting by validators could enable network users to request the verification of the current ledger and balances state, regardless of a transaction history tainted by 51% attack damage.
Common hybrix Index Storing the genesis transaction ID, or other hash information in every transaction would require a significant amount of blockchain storage as the volume of transactions grows.
The token protocol Omni, on the contrary, uses an index number for the asset ID in every transaction.
Where less computing and storage resources are available a hybrixjslib client can be used to sign and interpret transactions and get necessary data from a publicly available hybrixd node API. AF T Deterministic Libraries and API Connectors For a meta ledger we define a seed k KL¯ that can be used to generate a corresponding key pair in each base ledger using the function χL¯ : L¯ K(` ) χL,j :K L j DR 9 ψL : KL AL We connect to a large variety of blockchain APIs using a peer-to-peer network daemon called hybrixd 10.
Deterministic functions are used to generate key pairs for all included 10 Conclusion We have proposed a system for meta-level transfers across multiple distributed ledgers 10 Notes without relying on centralized exchanges or decentralized atomic transaction compatibility.
The process of moving value between ledger systems is not controlled by a centralized party, as transactions can be created and signed client-side and sent peer-to-peer among users.
We started with the usual framework of second-layer tokens specified by storing data attached to transactions, which provides a method of accounting on top of existing ledgersystems, but is incomplete without a way to prevent double-spending.
submitted by ramanpandwar to XeraExchange [link] [comments]

What Is Proof of Work (PoW)?

What Is Proof of Work (PoW)?
Contents
https://preview.redd.it/6xrtu2r56v151.png?width=1920&format=png&auto=webp&s=21a0175a00217614738e88b6c9d47fd07e0ae305
Introduction
Proof of Work (commonly abbreviated to PoW) is a mechanism for preventing double-spends. Most major cryptocurrencies use this as their consensus algorithm. That’s just what we call a method for securing the cryptocurrency’s ledger.
Proof of Work was the first consensus algorithm to surface, and, to date, remains the dominant one. It was introduced by Satoshi Nakamoto in the 2008 Bitcoin white paper, but the technology itself was conceived long before then.
Adam Back’s HashCash is an early example of a Proof of Work algorithm in the pre-cryptocurrency days. By requiring senders to perform a small amount of computing before sending an email, receivers could mitigate spam. This computation would cost virtually nothing to a legitimate sender, but quickly add up for someone sending emails en masse.

What is a double-spend?

A double-spend occurs when the same funds are spent more than once. The term is used almost exclusively in the context of digital money — after all, you’d have a hard time spending the same physical cash twice. When you pay for a coffee today, you hand cash over to a cashier who probably locks it in a register. You can’t go to the coffee shop across the road and pay for another coffee with the same bill.
In digital cash schemes, there’s the possibility that you could. You’ve surely duplicated a computer file before — you just copy and paste it. You can email the same file to ten, twenty, fifty people.
Since digital money is just data, you need to prevent people from copying and spending the same units in different places. Otherwise, your currency will collapse in no time.
For a more in-depth look at double-spending, check out Double Spending Explained.

Why is Proof of Work necessary?

If you’ve read our guide to blockchain technology, you’ll know that users broadcast transactions to the network. Those transactions aren’t immediately considered valid, though. That only happens when they get added to the blockchain.
The blockchain is a big database that every user can see, so they can check if funds have been spent before. Picture it like this: you and three friends have a notepad. Anytime one of you wants to make a transfer of whatever units you’re using, you write it down — Alice pays Bob five units, Bob pays Carol two units, etc.
There’s another intricacy here — each time you make a transaction, you refer to the transaction where the funds came from. So, if Bob was paying Carol with two units, the entry would actually look like the following: Bob pays Carol two units from this earlier transaction with Alice.
Now, we have a way to track the units. If Bob tries to make another transaction using the same units he just sent to Carol, everyone will know immediately. The group won’t allow the transaction to be added to the notepad.
Now, this might work well in a small group. Everyone knows each other, so they’ll probably agree on which of the friends should add transactions to the notepad. What if we want a group of 10,000 participants? The notepad idea doesn’t scale well, because nobody wants to trust a stranger to manage it.
This is where Proof of Work comes in. It ensures that users aren’t spending money that they don’t have the right to spend. By using a combination of game theory and cryptography, a PoW algorithm enables anyone to update the blockchain according to the rules of the system.

How does PoW work?

Our notepad above is the blockchain. But we don’t add transactions one by one — instead, we lump them into blocks. We announce the transactions to the network, then users creating a block will include them in a candidate block. The transactions will only be considered valid once their candidate block becomes a confirmed block, meaning that it has been added to the blockchain.
Appending a block isn’t cheap, however. Proof of Work requires that a miner (the user creating the block) uses up some of their own resources for the privilege. That resource is computing power, which is used to hash the block’s data until a solution to a puzzle is found.
Hashing the block’s data means that you pass it through a hashing function to generate a block hash. The block hash works like a “fingerprint” — it’s an identity for your input data and is unique to each block.
It’s virtually impossible to reverse a block hash to get the input data. Knowing an input, however, it’s trivial for you to confirm that the hash is correct. You just have to submit the input through the function and check if the output is the same.
In Proof of Work, you must provide data whose hash matches certain conditions. But you don’t know how to get there. Your only option is to pass your data through a hash function and to check if it matches the conditions. If it doesn’t, you’ll have to change your data slightly to get a different hash. Changing even one character in your data will result in a totally different result, so there’s no way of predicting what an output might be.
As a result, if you want to create a block, you’re playing a guessing game. You typically take information on all of the transactions that you want to add and some other important data, then hash it all together. But since your dataset won’t change, you need to add a piece of information that is variable. Otherwise, you would always get the same hash as output. This variable data is what we call a nonce. It’s a number that you’ll change with every attempt, so you’re getting a different hash every time. And this is what we call mining.
Summing up, mining is the process of gathering blockchain data and hashing it along with a nonce until you find a particular hash. If you find a hash that satisfies the conditions set out by the protocol, you get the right to broadcast the new block to the network. At this point, the other participants of the network update their blockchains to include the new block.
For major cryptocurrencies today, the conditions are incredibly challenging to satisfy. The higher the hash rate on the network, the more difficult it is to find a valid hash. This is done to ensure that blocks aren’t found too quickly.
As you can imagine, trying to guess massive amounts of hashes can be costly on your computer. You’re wasting computational cycles and electricity. But the protocol will reward you with cryptocurrency if you find a valid hash.
Let’s recap what we know so far:
  • It’s expensive for you to mine.
  • You’re rewarded if you produce a valid block.
  • Knowing an input, a user can easily check its hash — non-mining users can verify that a block is valid without expending much computational power.
So far, so good. But what if you try to cheat? What’s to stop you from putting a bunch of fraudulent transactions into the block and producing a valid hash?
That’s where public-key cryptography comes in. We won’t go into depth in this article, but check out What is Public-Key Cryptography? for a comprehensive look at it. In short, we use some neat cryptographic tricks that allow any user to verify whether someone has a right to move the funds they’re attempting to spend.
When you create a transaction, you sign it. Anyone on the network can compare your signature with your public key, and check whether they match. They’ll also check if you can actually spend your funds and that the sum of your inputs is higher than the sum of your outputs (i.e., that you’re not spending more than you have).
Any block that includes an invalid transaction will be automatically rejected by the network. It’s expensive for you to even attempt to cheat. You’ll waste your own resources without any reward.
Therein lies the beauty of Proof of Work: it makes it expensive to cheat, but profitable to act honestly. Any rational miner will be seeking ROI, so they can be expected to behave in a way that guarantees revenue.

Proof of Work vs. Proof of Stake

There are many consensus algorithms, but one of the most highly-anticipated ones is Proof of Stake (PoS). The concept dates back to 2011, and has been implemented in some smaller protocols. But it has yet to see adoption in any of the big blockchains.
In Proof of Stake systems, miners are replaced with validators. There’s no mining involved and no race to guess hashes. Instead, users are randomly selected — if they’re picked, they must propose (or “forge”) a block. If the block is valid, they’ll receive a reward made up of the fees from the block’s transactions.
Not just any user can be selected, though — the protocol chooses them based on a number of factors. To be eligible, participants must lock up a stake, which is a predetermined amount of the blockchain’s native currency. The stake works like bail: just as defendants put up a large sum of money to disincentivize them from skipping trial, validators lock up a stake to disincentivize cheating. If they act dishonestly, their stake (or a portion of it) will be taken.
Proof of Stake does have some benefits over Proof of Work. The most notable one is the smaller carbon footprint — since there’s no need for high-powered mining farms in PoS, the electricity consumed is only a fraction of that consumed in PoW.
That said, it has nowhere near the track record of PoW. Although it could be perceived as wasteful, mining is the only consensus algorithm that’s proven itself at scale. In just over a decade, it has secured trillions of dollars worth of transactions. To say with certainty whether PoS can rival its security, staking needs to be properly tested in the wild.

Closing thoughts

Proof of Work was the original solution to the double-spend problem and has proven to be reliable and secure. Bitcoin proved that we don’t need centralized entities to prevent the same funds from being spent twice. With clever use of cryptography, hash functions, and game theory, participants in a decentralized environment can agree on the state of a financial database.
submitted by D-platform to u/D-platform [link] [comments]

Bitcoin vs Nano - Solving the Double Spend Problem - YouTube How Bitcoin shields you from Double Spending!  Watch Now ... What is double spending? - YouTube Monero - Bitcoin Replacement. Untraceable. Unlinkable. Double-spending Proof. qed. Blockchain tutorial 22: Double spending, third party

Double-Spending ist ein Problem, das Bargeld nicht hat; wenn man für ein Sandwich mit einem 10-Euro-Schein bezahlt und diesen Schein dem Hersteller des Sandwichs übergibt, kann man sich nicht umdrehen und die gleichen 10 Euro anderweitig ausgeben. Eine Transaktion mit einer Krypto-Währung wie Bitcoin erfolgt jedoch vollständig digital. Das bedeutet, dass es möglich ist, die ... Bitcoin manages the double spending problem by implementing a confirmation mechanism and maintaining a universal ledger (called “blockchain”), similar to the traditional cash monetary system.. Bitcoin’s blockchain maintains a chronologically-ordered, time-stamped transaction ledger from the very start of its operation in 2009. Double-spending is a problem in which the same digital currency can be spent more than once. In other words, double-spending is an instance in which a transaction uses the same input as another transaction that has already been broadcast on the network. This is a flaw that is unique to digital currencies because digital information is something that can be reproduced rather easily. Digital ... Bitcoin, a peer-to-peer electronic cash system, has inspired many other projects and can be seen as a pioneer of the underpinning blockchain technology. That said, it would be worth exploring how Bitcoin solves the double-spending problem. Instead of delving into theoretical exposition we will experience a transaction process in this pioneering ... Blockchain löst das Double-Spending-Problem. Kryptowährungen sind dezentral, die Authorität liegt nicht bei einer einzigen Instanz. Um trotzdem Sicherheit zu gewährleisten, spannen Währungen wie Bitcoin das gesamte Netzwerk zur Überprüfung ein. Das funktioniert so: Jeder Vorgang wird in der Blockchain festgehalten und im gesamten Netzwerk gespeichert. Anders als in zentral gesteuerten ...

[index] [9067] [31777] [47021] [29770] [45382] [5044] [26384] [42994] [38381] [13975]

Bitcoin vs Nano - Solving the Double Spend Problem - YouTube

How To Double Spend Your Stuck Bitcoin Transaction with FSS-RBF - Duration: 8:22. m1xolyd1an 87,485 views. 8:22 . Mining Litecoins (LTC) with Gridseed Scrypt ASIC miner farm - 28 MH - Duration: 5 ... What is double-spending? Can someone duplicate my Bitcoins? Watch this video for more information and visit https://coiner.co.za/ Responding to this "Keyword: Crypto" podcast episode: https://anchor.fm/keywordcrypto/episodes/Mario-Gibey-DESTROYS-NANO-ekhfsa Re: Mario Gibney DESTROYS $NA... In this video, I will be explaining one of the main reason why it took so long for CryptoCurrency to become a part of our lives. I will be addressing the iss... Nicolas Courtois On Hash Rate 51 and Protection Against Double Spending In Bitcoin and Other Crypto

#