The Longest Chain - Blockchain Guide

bchnode

/bchnode is a non-official fan-community of the Bitcoin Cash Node project! What is the Bitcoin Cash Node initiative? The primary goal of the Bitcoin Cash Node initiative is to provide a safe and professional Bitcoin Cash node implementation that will neutrally follow the longest Bitcoin Cash chain without contributing to the risk of a chain split.
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DigiByte: More Secure, Faster & Forward Thinking

DigiByte is more than a faster digital currency. It is an innovative blockchain that can be used for digital assets, smart contracts, decentralized applications and secure authentication.
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If you can believe Coindance, BCH(SV) is now the longest chain, Bitcoin SV is currently 2 blocks ahead. /r/btc

If you can believe Coindance, BCH(SV) is now the longest chain, Bitcoin SV is currently 2 blocks ahead. /btc submitted by ABitcoinAllBot to BitcoinAll [link] [comments]

Why can't we figure out that the longest chain prevails? There can be millions more miners mining core, but when big blocks provide the longest chain, Bitcoin gets legs.

Big money doesn't have to stop at $74 million. They can write checks for mining farms all day long, but if we fork, they can't make the longest chain using small blocks. End of story. One more death averted by Bitcoin. Fork on!
submitted by bitpool to btc [link] [comments]

Why can't we figure out that the longest chain prevails? There can be millions more miners mining core, but when big blocks provide the longest chain, Bitcoin gets legs. /r/btc

Why can't we figure out that the longest chain prevails? There can be millions more miners mining core, but when big blocks provide the longest chain, Bitcoin gets legs. /btc submitted by BitcoinAllBot to BitcoinAll [link] [comments]

BTC & BCH - The longest chain & The greater PoW (x-post from /r/Bitcoin)

submitted by ASICmachine to CryptoCurrencyClassic [link] [comments]

08-13 15:16 - 'BTC & BCH - The longest chain & The greater PoW' (self.Bitcoin) by /u/silver99s_ removed from /r/Bitcoin within 6-16min

'''
The longest chain is always the real one, Except if the PoW of the shorter chain is greater than the longest.
Ex: BCH chain is longer than BTC. But BTC chain Pow is greater than BCH.
If my assumptions are trues then my following question are:
1) What if hard fork happen again, the newest chain have the shorter chain but the difficulty to mine it is greater. Does that mean that the original chain is the newest (because code change) with greater pow?
3) True BTC chain code can evolve? Or the true BTC chain should not change?
2) Before BCH came, what happen to mined coins? What user (not miners or nodes) should do to continue to use the main chain?
I wishe to be able to recognize the real chain now and in the futur.
Thanks
'''
BTC & BCH - The longest chain & The greater PoW
Go1dfish undelete link
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Author: silver99s_
submitted by removalbot to removalbot [link] [comments]

Does anyone else miss the good old days of Gavin & Andreas?

Today we have $10 bitcoin fees. 200k backlog of transactions. Paying a $1 fee is now considered "spam". I remember when bitcoin was a sunny outlook and the sky was the limit.
Now I see the failure to scale as much of a problem as the MtGox collapse. It may delay mass adoption by some number of years.
The price is going up, which is great, but I see Bitcoin's stalemate on the technology side of the house as the main barrier at this point.
Developers and Miners both want bitcoin to succeed. I remember how BTCGuild "fixed" the last fork in 2013. Back then Devs and Pools knew how to work together.
Why do they have to stay stuck in this asinine stalemate? Bitcoin's governance model was to have miners create blocks. Majority rules, 51% is king. The mechanism is already set. All that should be required is merchants/payment processors/etc commit to actually supporting the real Bitcoin, AKA the "longest" chain.
Bitcoin today needs to grow some balls and stick with the model as designed. Sure give me Segwit, but give us bigger damn blocks too! Anyone with half brain knows 1mb, even 2mb is too small.
This really is common sense stuff. And unfortunately common sense seems to be a rarity these days. Bitcoin's second chance IPO is here. Lets not fuck it up again (throws karpeles the finger)!
Sincerely,
A bitcoin believer and miner since 2011
submitted by jwBTC to Bitcoin [link] [comments]

[Serious] /r/btc has not lost its way. Bitcoin has lost its way.

jratcliff63367 I appreciated your post, but /btc has not lost its way.
Bitcoin has lost its way.
If a majority of CPU power is controlled by honest nodes, the honest chain will grow the fastest and outpace any competing chains.
The white paper repeatedly makes the assumption that for Bitcoin to work in the first place we start by assuming that the network rules are defined by "a majority of CPU power" which defines consensus by building the longest chain.
Bitcoin rests on the assumption that the majority is "honest" - by which is meant, not working to harm the network, not colluding, but each working in his own self interest independent from others.
I think we can all agree here that "a majority of CPU power" is not controlled by "honest miners" based on that sort of definition.
So now what?
We can keep rearranging the deck chairs on the Titanic by pointless arguments about block size, we try now at the 11:59 to change course radically, or we can jump ship.
This is not actually about block size for almost any of us anymore. I think we all know what we want, but we're afraid to say it.
submitted by tsontar to btc [link] [comments]

PSA: Coinbase will follow the longest chain hence Nakamoto Consensus! This is a huge push back against the PoSM attack attempted by Bitcoin.com today.

PSA: Coinbase will follow the longest chain hence Nakamoto Consensus! This is a huge push back against the PoSM attack attempted by Bitcoin.com today. submitted by heuristicpunch to btc [link] [comments]

11-21 22:57 - 'There are ways to prevent or make two chains highly unlikely. The 2016 block difficulty readjustment interval will make any minority chain after a split extremely expensive to mine for two weeks which means any attack...' by /u/cdn_int_citizen removed from /r/Bitcoin within 212-217min

'''
There are ways to prevent or make two chains highly unlikely. The 2016 block difficulty readjustment interval will make any minority chain after a split extremely expensive to mine for two weeks which means any attack on it will likely destroy it. Not only that but the lower hash power means the standard 10 minute block times will increase on the minority chain and this chain will fall behind, hence only one chain will be the longest chain. Bitcoins true blockchain will always be the longest chain and thats how it is defined by Satoshi. These are points core supporters ignore which I feel is dishonest.
'''
Context Link
Go1dfish undelete link
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Author: cdn_int_citizen
submitted by removalbot to removalbot [link] [comments]

No, That's Not How "The Longest Chain" Works in Bitcoin

No, That's Not How submitted by jonald_fyookball to btc [link] [comments]

Satoshi whitepaper's "longest chain is Bitcoin" rule does not apply when comparing two chains with different consensus rules.

I have heard countless arguments that if SV ever gained 75% hashrate and forks, then it must be called BCH because it is the longest chain according to Satoshi's whitepaper.
This statement is absolutely false. The whitepaper only used the longest chain rule to help determine which chain is Bitcoin in the event the Bitcoin network is being attacked. Because there will be more honest nodes mining, the longest chain wins. The longest chain is only used to determine winner of 2 chains using the same consensus rules.
When 2 chains are following different consensus rules, longest chain does not matter at all.
See for example the ETH/ETC hardfork. Different consensus rules. No one cares which chain is longest (i.e. more work). Users decide which they want to call Ethereum.
If there will be a contentious hardfork with SV nodes forking to a 128MB chain, it doesn't matter if that chain has 75% of the miners on it. 2 different consensus rules means 2 different coins. And users will decide which coin they will call Bitcoin. Hashrate and miners don't decide that for the users.
Here's an analogy. What happens when chess game makers decide to come together to change the chess board from an 8x8 to a 9x9 board because they think having more space to play chess is better? Would users just accept that and call the new game chess? No, they won't refer to the new game (with new rules) as chess. They will still refer to the original game (on an 8x8 board with the original rules) as chess.
That said, it is possible that users will decide that the SV fork is the true BCH. But it will be because they choose to call that the real BCH, and not because a majority hashrate demands it to be called Bitcoin.
Edit: It is funny the people upvoting this thread, they don't even realize they are upvoting Core propaganda from over a year ago by Charlie Lee, who is a huge Core troll and BCH hater and member of the magical crypto friends. This was Charlie's logic on why blocksize upgrades will never be allowed on Core, and UASF will win. All I did was switch BU out for SV, and the rest is word for word. This sub has been taken over by the same Core cancer that has killed BTC Legacy. Hopefully this time miners will have the guts to prevail over these PoSM attacks on Bitcoin.
submitted by bchbadger to btc [link] [comments]

Samourai Wallet will follow the longest valid chain, valid referring to the consensus rules as defined in version 0.15 of Bitcoin Core.

Samourai Wallet will follow the longest valid chain, valid referring to the consensus rules as defined in version 0.15 of Bitcoin Core. submitted by hairy_unicorn to Bitcoin [link] [comments]

Satoshi whitepaper's "longest chain is Bitcoin" rule does not apply when comparing two chains with different consensus rules.

I have heard countless arguments that if BU ever gained 75% hashrate and forks, then it must be called Bitcoin because it is the longest chain according to Satoshi's whitepaper.
This statement is absolutely false. The whitepaper only used the longest chain rule to help determine which chain is Bitcoin in the event the Bitcoin network is being attacked. Because there will be more honest nodes mining, the longest chain wins. The longest chain is only used to determine winner of 2 chains using the same consensus rules.
When 2 chains are following different consensus rules, longest chain does not matter at all.
See for example the ETH/ETC hardfork. Different consensus rules. No one cares which chain is longest (i.e. more work). Users decide which they want to call Ethereum.
If there will be a contentious hardfork with BU nodes forking to a 2mb chain, it doesn't matter if that chain has 75% of the miners on it. 2 different consensus rules means 2 different coins. And users will decide which coin they will call Bitcoin. Hashrate and miners don't decide that for the users.
Here's an analogy. What happens when chess game makers decide to come together to change the chess board from an 8x8 to a 9x9 board because they think having more space to play chess is better? Would users just accept that and call the new game chess? No, they won't refer to the new game (with new rules) as chess. They will still refer to the original game (on an 8x8 board with the original rules) as chess.
That said, it is possible that users will decide that the BU fork is Bitcoin. But it will be because they choose to call that Bitcoin, and not because a majority hashrate demands it to be called Bitcoin.
submitted by coblee to btc [link] [comments]

Satoshi whitepaper's "longest chain is Bitcoin" rule does not apply when comparing two chains with different consensus rules.

I have heard countless arguments that if BU ever gained 75% hashrate and forks, then it must be called Bitcoin because it is the longest chain according to Satoshi's whitepaper.
This statement is absolutely false. The whitepaper only used the longest chain rule to help determine which chain is Bitcoin in the event the Bitcoin network is being attacked. Because there will be more honest nodes mining, the longest chain wins. The longest chain is only used to determine winner of 2 chains using the same consensus rules.
When 2 chains are following different consensus rules, longest chain does not matter at all.
See for example the ETH/ETC hardfork. Different consensus rules. No one cares which chain is longest (i.e. more work). Users decide which they want to call Ethereum.
If there will be a contentious hardfork with BU nodes forking to a 2mb chain, it doesn't matter if that chain has 75% of the miners on it. 2 different consensus rules means 2 different coins. And users will decide which coin they will call Bitcoin. Hashrate and miners don't decide that for the users.
Here's an analogy. What happens when chess game makers decide to come together to change the chess board from an 8x8 to a 9x9 board because they think having more space to play chess is better? Would users just accept that and call the new game chess? No, they won't refer to the new game (with new rules) as chess. They will still refer to the original game (on an 8x8 board with the original rules) as chess.
That said, it is possible that users will decide that the BU fork is Bitcoin. But it will be because they choose to call that Bitcoin, and not because a majority hashrate demands it to be called Bitcoin.
submitted by coblee to Bitcoin [link] [comments]

"Lol you cry about name calling and then name call bitcoin. There's only one bitcoin the chain with the longest..." [-10]

submitted by NegativeWithGoldBot to NegativeWithGold [link] [comments]

A lot of people are repeating Core talking points from a year or two ago. Here is Charlie Lee: "Satoshi whitepaper's "longest chain is Bitcoin" rule does not apply when comparing two chains with different consensus rules.", seems Jonald Fyookball and others agree with Core.

A lot of people are repeating Core talking points from a year or two ago. Here is Charlie Lee: submitted by cryptosword to btc [link] [comments]

"Bitcoin ABC has built the longest chain in the first 24 hours. Miners should now take the next step and kill the minority chain (Bitcoin SV) to ensure the security of its users. Anything less would be reckless for the security of the chain."-$The_BCH_Boys ‏

submitted by Windowly to btc [link] [comments]

PSA: Beware that anyone who supports Bitcoin & the longest chain is ostracised & censored by r/btc mods. r/btc's Roger Ver has been cultivating an anti-Bitcoin, anti-freemarket cult for months. PoS is good, PoW is bad. Checkpoints are good, re-orgs are bad. Circlejerking is good, competition is bad.

submitted by casualiiiamathrpwawa to btc [link] [comments]

Coinbase to follow whitepaper in November: "The winning fork I’m defining here as the longest bitcoin chain (measured by amount of 'work' or hashing power done on it) originating from Satoshi’s genesis block. I’m defining the 'moment the network upgrades' as when the proposed change takes effect."

Coinbase to follow whitepaper in November: submitted by moonjob to btc [link] [comments]

This is how Coinbase CEO considers forks: "The winning fork I’m defining here as the longest bitcoin chain (measured by amount of 'work' or hashing power done on it) originating from Satoshi’s genesis block. I’m defining the 'moment the network upgrades' as when the proposed change takes effect."

This is how Coinbase CEO considers forks: submitted by cryptorebel to btc [link] [comments]

PSA: Ryan Charles didn't gamble on SV, RXC understands how Bitcoin works and supports the longest chain. Period. Those attacking BCH can never understand his position because they do not understand bitcoin in the first place.

submitted by casualiiiamathrpwawa to btc [link] [comments]

This is how Coinbase CEO considers forks: "The winning fork I’m defining here as the longest bitcoin chain (measured by amount of 'work' or hashing power done on it) originating from Satoshi’s genesis block. I’m defining the 'moment the network upgrades' as when the proposed change takes effect."

This is how Coinbase CEO considers forks: submitted by cryptorebel to Bitcoincash [link] [comments]

Blockchain 101 Ep 48 - The longest blockchain is the truth? Structure of a Block [Blockchain & Cryptocurrency (Bitcoin, Ethereum)] Bitcoin Consensus and Longest Chain - YouTube Blockchain - A short history Bitcoin Q&A: Empty blocks, orphan blocks, and valid chains ...

The block chain is the main innovation of Bitcoin. Honest generators only build onto a block (by referencing it in blocks they create) if it is the latest block in the longest valid chain. "Length" is calculated as total combined difficulty of that chain, not number of blocks, though this distinction is only important in the context of a few ... Longest Chain. The chain of blocks that nodes adopt as their blockchain. The longest chain is what individual nodes accept as the valid version of the blockchain.. The rule that nodes adopt the longest chain of blocks allows every node on the network to agree on what the blockchain looks like, and therefore agree on the same transaction history.. In other words it means that computers acting ... In this article, the discussion will be focusing on the Longest Chain Rule adopted by Bitcoin, namely the “Satoshi Nakamoto consensus algorithm” . Conflux adopts the Heaviest Chain Rule, which ... In the previous post I explained the Longest Chain Rule using an analogy. The analogy seemed to help several of the Mango Readers grasp the importance the rule plays. If you haven’t read it yet, I urge you to do so. The Longest Chain Rule plays a vital role in the Bitcoin and Ethereum consensus mechanism. Consensus can be reached by selecting the “longest” chain of valid blocks. In the Bitcoin whitepaper 1, and some other documentation, it is indicated that the honest chain grows the longest, assuming that 51% or less of the miners are malicious. Therefore, the longest chain can be considered to be the chain with the most invested Proof-of-Work:

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Blockchain 101 Ep 48 - The longest blockchain is the truth?

Bitcoin Transaction Details - Part 1 - Duration: 15:47. djp3 50,714 ... How transactions are verified in Bitcoin Blockchain - Longest chain rule explained - Duration: 5:08. FINMAESTRO 30,671 ... How transactions are verified in Bitcoin Blockchain - Longest chain rule explained - Duration: 5:08. FINMAESTRO 26,577 views. 5:08. Bitcoin - Proof of work - Duration: 10:32. What are empty blocks and are they necessarily bad? What are orphan blocks? Where do bitcoin balances come from? What is meaning of "the longest cumulative d... How transactions are verified in Bitcoin Blockchain - Longest chain rule explained - Duration: 5:08. FINMAESTRO 23,481 views. 5:08. The Bitcoin whitepaper states: Nodes always treat the longest blockchain as the truth and continue to expand on it. All miners should work on the longest blockchain because it helps to maintain ...

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