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Questions tagged [hardforks]

A hardfork is any backwards-incompatible change to the Ethereum protocol, such that a client will need to upgrade in order to remain on the network. This tag is for actual and proposed hardforks, as well as the issues relating to them.

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4
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1answer
338 views

How many blocks were reversed with the DAO hard fork?

There are some facts regarding the DAO hack and the subsequent hard fork that can be found everywhere, e.g., that the hard fork happened at block height 1,920,000, that it was undertaken in an effort ...
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0answers
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Is there a table detailing all Ethereum protocol versions and which hard forks they correspond to?

Ethereum nodes have a protocol version parameter (https://web3py.readthedocs.io/en/stable/web3.eth.html#web3.eth.Eth.protocol_version). Is there a good source for Ethereum protocol versions and the ...
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0answers
19 views

Is it possible to hard fork a private network to Berlin?

I have a Proof-of-Authority private Ethereum network that has Istanbul EVM version and created by clique engine. I have multiple signer nodes that has Geth version: v1.10.1-stable-c2d2f4ed. "...
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0answers
11 views

Does anyone know what this transaction refers to, and if funds can be retrieved?

Hello Ethereum community! I was looking back at transactions made with an old ethereum wallet and came across the following. Does anybody know what this refers to? I am not sure what this "...
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2answers
185 views

How do transactions know how to behave based on the genesis block?

Say I am a miner, and my genesis block on the mainnet has configuration X. A transaction comes in for me to mine. How does my Ethereum client confirm that transaction adheres to all the standards set ...
16
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2answers
10k views

How do I convert my The DAO tokens into ethers on the Ethereum Classic chain?

According to Whitehat Withdrawal contract - Update and Next Steps and Whitehat Withdrawal contract - Last update before deployment, the Goodies will be deploying the withdrawal contracts whetcwithdraw....
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0answers
30 views

Is there any way to find all of the Sep/Oct 2016 DDos accounts?

This EIP allowed for the cleaning up of the nearly 20 million DDos accounts created during the September/October 2016 DDos attack. The solution had two parts: (1) the node code had to be changed to ...
0
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1answer
410 views

Non-native tokens versus Native tokens

to me ERC-20 tokens are a sub-class of Ether, yet they are referred to as "non-native tokens". Why would they be called non-native? What would be native in the Ethereum sense then? Cardano-...
3
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1answer
156 views

Byzantium related homework required for pool operators and developers

Is there a summary of what code and/or configuration changes need to be implemented by mining pools and associated code to properly support the upcoming hard-fork? Do packages like ethash need to be ...
0
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1answer
23 views

I'm here to run the official Go-Ethereum repo. How can i do that?

I want to run go-ethereum in my own PC. Is there any instruction about this? How they deployed it?
0
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0answers
16 views

trying to send some tokens from unlocked account

So I'm trying to send some tokens from an, with ganache-cli unlocked, address to mine to try something out, however for my code to work I need some starting amount of the initial token. Is there some ...
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1answer
56 views

Which fork implemented EIP-141? (invalid opcode)

EIP-141 https://eips.ethereum.org/EIPS/eip-141 was introduced in 2017, but I cannot find it in any of the meta lists for forks https://eips.ethereum.org/meta. Is there a fork under which it was ...
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1answer
37 views

What do the keys 'balance', 'extraBalance' and 'extraBalanceAccount' signify in the dao-hardfork

The list of 58 affected accounts during the DAO hardfork is available here: https://github.com/ethereum/go-ethereum/blob/5f55d95aea433ef97c48ae927835d833772350de/params/dao.go#L67 The list has four ...
2
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1answer
62 views

What are the changes to EVM from Constantinople fork and later forks? [duplicate]

What are the changes to EVM from Constantinople fork and later forks? Could you tell me which commit in git? Or Could you provide a list? Thank you!
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1answer
19 views

Simple question about pre/post hard fork of July 2016

I have searched the messages and, while I did find some info on the hard fork, I didn't see my answer. I believe it is because it is such a simple question. Thank you for any clarification you can ...
8
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1answer
326 views

What happened in the Ropsten hardfork from Byzantium to Constantinople?

What were the consensus issues during the Constantinople hardfork in the Ropsten testnet? One noted consensus issue is: geth and parity have been in noticeable disagreement regarding block ...
0
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1answer
27 views

Miner not updated to Muir Glacier. Coins now in Ice-Age-Chain(?)

What happens if a miner processes my transaction that has not updated to Muir Glacier? Is it possible that I loose coins because the miner is still on the old chain so that the coins are now on the ...
2
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1answer
84 views

What is the Muir Glacier hardfork?

What is the Muir Glacier hardfork on the Ethereum mainnet?
5
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1answer
345 views

It possible to hard fork a private network without resyncing chain from scratch?

I am able to hard fork my private chain into first Constantinople and than to Istanbul, please see the answer for it. My approach is: I have updated geth to its highest version I have kept the go-...
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1answer
78 views

How will the existing Smart Contract handle ETH Fork Upgrades (E.g., ETH's Istanbul Upgrade) or Outages

I have created my token and deployed on ethereum network before ETH Fork Upgrades (E.g., ETH's Istanbul Upgrade), What will be the huge impact of Fork update on my smart contracts and how can i manage ...
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1answer
49 views

Should I stop the geth node during hard-fork?

As the countdown on https://ethernodes.org/istanbul, should I need to stop my geth node before hard-fork? Or I could continue to syncing during hard-fork. Thanks alot.
17
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2answers
5k views

Please provide a summary of the Ethereum hard forks

The question Please confirm what the hard forks of Ethereum were and when they took place was asked on Reddit by u/Tykerr.
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1answer
146 views

What is a hard fork? [duplicate]

I am new to web3 development. I have seen the word 'hard fork' in web3.js documentation, but I never understood it fully. I also noticed that hardfork is used a lot when talking about chains and ...
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2answers
370 views

During the POW/POS transition, why would a POW miner choose to mine on the chain with the POS consensus algorithm?

As the title says, what incentive does a POW miner have to mine on the hybrid POS chain? They would, effectively, be removing their own economic incentive from the consensus mechanism. I understand ...
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0answers
18 views

How a full node knows which chain to follow?

After Istanbul fork, my full node followed the longest chain which has: Longest Chain Highest TotalDifficulty It seems that the shorter chain of the core-dev closing the gap - total difficulty ...
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0answers
24 views

During fork, how tx that was sent from full node is been mined on the two blockchains?

My full node connected to 0,...,n peers and follows the longest chain after Istanbul fork - the miner's chain. General transaction flow: full-node get the tx, validates and broadcast to its peers. ...
2
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2answers
761 views

When ETH Hardforks do the tokens as well?

If the ETH chain hard-forked into EthereumGold or something, would all of the ERC20 tokens and what not running on ETH at the time fork into the new blockchain as well? I'm 95% sure the answer is ...
0
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1answer
34 views

Is Ethereum suitable as a store of value?

Say you bought some ether when ethereum was at 1.0. Most of the time Ethereum requires you to update (via a hard fork) to the latest software. This means you'd need to update your wallet every time ...
4
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1answer
390 views

Is it possible to hard fork a private network to Constantinople?

I have a Proof-of-Authority private Ethereum network that has Byzantium EVM version and created by clique engine. I have a single miner that has Geth version: v1.8.27. { "config": { "chainId": ...
2
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1answer
120 views

Ethereum Hard Fork and blockchain

If i do Ethereum Hard Fork to build DApp - Does it need to be on Ethereum or could be a separate blockchain system? If we build a separate blockchain system, what is the advantage of hard-forking from ...
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2answers
282 views

Ethereum hard-fork: Geth Syncing Issue

I have been running a geth testnet instance for the last 2 months and learning this. But after the hard-fork i have seen the syncing to be extremely slow. I updated geth to Version: 1.7.0-stable. eth....
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1answer
51 views

How Ethereum HardFork Complete?

When a major change happen in ethereum like Softfork or Hardfork, all nodes may not agree with this. So is this change possible ? Vitalik is creator of Ethereum. But ethereum is totally decentralized, ...
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1answer
40 views

What’s the full changelog for things which actually had been implemented by Constantinople?

It’s being said that the Constantinople hard fork is a minor one. But as far I know, this is isn’t just a miner reduction fees. They are additional things which were implemented (like a special ꜱꜱᴛᴏʀᴇ ...
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1answer
58 views

Blockchain Hark Fork System Impact - risk assessment and mitigation plan

I am exploring on System Impact risk assessment and mitigation plan during a block chain (ex –Ethereum) hard fork. 1) What happens to the deployed smart contracts when a hard fork occurs? 2) Does ...
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0answers
38 views

Will the Gnosis multisig wallets be compatible with the Eth hard fork

Does anyone know whether Gnosis multisig wallets are going to be compatible with the Eth hard fork happening soon? I am worried that the funds I have in mine might not be safe.
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0answers
41 views

Changing chain specification

We have a private network with 10 nodes actually. It's been working for a couple months now. When we did it, we set up some parameters in the chain specification that are now too small for the growth ...
6
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2answers
1k views

Does ETH and ETC uses the same network ID?

Can someone tell me what happen after the hardfork (due to DAO attack)? There are 2 ethereum cryptos after the fork, so there should be 2 different network. Are they using the same network ID? How do ...
0
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1answer
255 views

How to fork Ethereum(go implementation) to make a new chain? [duplicate]

I want to fork Ethereum(go implementation) to make another new public chain which should start again from the block zero but keeping all other parameters same as in main chain. Please guide me with ...
3
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1answer
58 views

Why was the Constantinople hard fork postponed?

The Constantinople hard fork — really a network upgrade — was scheduled to happen today (January 16) at block 7,800,000. Instead the upgrade was postponed. What are the technical reasons for the ...
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1answer
170 views

Will the Constantinopole hard fork create new coins?

Is the ethereum constantinopole hard fork going to result in extra forked coins for ethereum holders?
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1answer
535 views

Casper, Serenity, Constantinople, Ethereum 2.0

I hear alot about the terms: Casper Serenity Constantinople Ethereum 2.0 At some point I thought that all are the same, the next release of Ethereum, but apparently there’s an upcoming fixes patches ...
2
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0answers
100 views

What is the point of switching to ProgPOW for ethereum, when POS is coming in the coming year(s)?

With the recent discussion of the new ProgPOW mining switch. What is the point of it when POS is coming in the coming year(s)? I understand it disables the ASIC miners, while benefiting the GPU miners....
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2answers
222 views

Constantinople hard fork and Ethereum based tokens

I have a question: Do we have to deposit all of our Ethereum tokens into some exchange before the Constantinople hard fork, otherwise our tokens will become worthless? Or we can leave our tokens in ...
2
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1answer
276 views

What are the changes to be included with Constantinople fork? [duplicate]

Recently it was announced that the next hard fork of the Ethereum network mainnet will be at block 7,080,000. From more recent estimates it will occur around 2019-01-15 18:11:20 UTC. So what are the ...
6
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2answers
579 views

Are eth transactions still replayed on the etc chain?

I have read about EIP 155. I see that the main chain, test nets, and ETC were asked to implement EIP 155. If just ETH implemented EIP 155, wouldn't that have been enough to prevent ETC from being ...
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1answer
62 views

Constantinople fork replay protection

I was wondering... Will Constantinople hard fork surely replace the current fork? Is there any chance that the Constantinople fork and the current one will co-exist? If so, any replay attack ...
2
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0answers
47 views

Geth Clique: can change config params in genesis and still retain the existing blocks?

I have altered my custom Geth private chain Clique PoA, but it seems after I do that I encounter: BAD BLOCK Error: invalid receipt root hash Is it possible to: change the Geth code add a new hard ...
1
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1answer
358 views

Upcoming Ethereum hard fork and ERC-20 token as fiat money

The ethereum network may face a new hard fork with the release of Ethereum 2.0 (scalability fixes) Is it true that we might have two parallel ethereum networks each running a different consensus ...
0
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1answer
188 views

Why does a permanent chain split occur only in a Hard Fork?

Have read a number of articles on what hard fork and soft fork actually are. But couldn't really get the essence of it. My understanding is Hard Fork brings a change in the core Blockchain code (...
0
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1answer
217 views

What happens to ICO tokens on the Ethereum chain after a hardfork? Are they valid on both chains?

With the Ethereum Metropolis hard fork coming up, what happens to ICO tokens like Steemit and all the others built on top of the Ethereum network? Do they automatically fork too?