Questions tagged [ethereum-classic]

Ethereum Classic is the chain where the DAO rescue hardfork did not occur. This tag is for questions dealing with the differences between the chains, usage of multiple chains, as well as cross-chain interaction.

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15
votes
2answers
5k views

How to conditionally send ethers to another account post-hard-fork to protect yourself from replay attacks

The DAO contract was attacked on 17th June 2016 where the attacker drained about USD 50 million worth of ethers using a recursive call vulnerability in The DAO contract code. The attacker drained ...
16
votes
2answers
9k 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....
11
votes
3answers
2k views

How to prevent a replay attack between two competing chains?

After the recent hardfork we have a winning chain and a much shorter losing chain left. However, if you are pro or agains the fork, you could still mine and use one chain or the other. Now, there is ...
7
votes
1answer
7k views

ETH sent to ETC address

I accidentally sent ALL my ETH on ETC address :( 6 months of mining gone :( I sent from one exchange to fresh address on another exchange, but on ETC ... Is there ANY way to track those coins? I'm ...
0
votes
1answer
577 views

Sent transaction between ETH and ETC accounts

Halp! I sent a transaction between an ETH account and an ETC account by accident! How can I recover the ether?
12
votes
5answers
17k views

send ethers from one contract to another

I am wondering how can I have ethers in my contract. I have 2 contracts associated with different accounts. I want to send ethers from one contract to another but how do I have ethers in my contract ...
4
votes
1answer
953 views

How can I verify that my The DAO token balance is correct when the Goodies provide an ETC refund on the Ethereum Classic chain?

From the blog post The White Hats and DAO Wars: Behind the Scenes, the Goodies intend to: develop the smart contracts that will be used to distribute ETC to the addresses holding DAO Tokens at ...
1
vote
1answer
6k views

I sent My ETC to my ETH address

I've sent a mistake ETC from ETH address from poloniex. How do i do now. This is my transaction (this is a fresh address) http://gastracker.io/tx/...
5
votes
2answers
5k views

What's the formula to calculate the mining profitability for ETC?

I know there are calculators for mining profit, but I need to include the same thing in an app I'm building, what formula do they use for Ethereum Classic? Also, can I use the same formula for other ...
9
votes
2answers
970 views

How does Ethereum Classic differ from Ethereum?

What are the technical differences between Ethereum Classic and Ethereum?
6
votes
1answer
612 views

Post the DAO-fork, is there a double-spending problem?

If an account had ETH before the DAO-fork does the ETH now not exist on both the ETH and the ETC chains? A Poloniex notice says "All users who had an Ethereum balance at the moment of the fork now ...
4
votes
1answer
161 views

Problem after withdrawal non hard fork ethereum

I have a problem, I successfully withdraw some ETC but when I tried another time to withdraw the rest I think I put in more ETC and I didn't receive anything and now when I try again to withdraw any ...
3
votes
2answers
854 views

I mistakenly sent ETH from online wallet to ETC hardware wallet address

I mistakenly sent ETH from my online wallet to my ETC hardware (Ledger Nano S) wallet address. Is there any possibility of recovery? And if yes, how? Thanks and kindest regards
3
votes
1answer
137 views

Unable to understand how smart contracts work

I'm reading several articles about privacy in ethereum smart contracts but still I don't understand how everything in the smart contract is visible to anyone? What does this mean?
1
vote
1answer
780 views

About Abi Encoder V2

I came across the following code and found the term "pragma experimental ABIEncoderV2". Can anybody be specific in telling what this actually means? //pragma solidity ^0.5.2; pragma experimental ...
9
votes
1answer
2k views

What are the balances of The DAO and it's child DAOs on the Ethereum Classic chain?

At the hard-fork block #1,920,000, the ETH balance from The DAO and it's child DAOs (which includes the balance from the extraBalance account) were transferred into the Withdrawal contract. What are ...
4
votes
2answers
606 views

how to deal with race condition and execution times of a contract?

I'm a ethereum beginner. I can't understand some of its concept. for example, a contract should be executed by everyone on the network as a way to verify a block. what about synchronization among ...
2
votes
1answer
600 views

When will the Baddies have access to the hacked funds on the Ethereum Classic chain?

The Baddies drained 3641694.241898506992612606 ETH via The DAO's child DAO #59. When will the Baddies have access to the hacked funds on the Ethereum Classic chain? See also: Which split proposal ...
2
votes
2answers
954 views

How many nodes are supporting Ethereum Classic?

To avoid high fees, I am considering deployment of Smart Contracts on Ethereum Classic (around 20 fold cheaper than ETH) but a concern is about network soundness and security. So I was wondering how ...
6
votes
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 ...
3
votes
1answer
967 views

How can I find ETC nodes (to pass their enode URI to --reserved-peers) because the classic chain no longer syncs through tor?

I was syncing the ETC chain on parity through tor. Everything worked fine. I got to block 3,000,001. Everything stopped, I realized there was a hardfork. I updated the software (ETH worked fine), but ...
3
votes
1answer
142 views

ReplaySafeSplit contract on Mist v0.8.10

I'm trying to split my ETH/ETC from a presale wallet in Mist v0.8.10. I've followed the original Steemit post on running the split contract yet when I go to run the contract it doesn't show a field to ...
2
votes
1answer
525 views

What's happening within child DAO #59 on the ETC chain?

From What are the balances of The DAO and it's child DAOs on the Ethereum Classic chain? we know that the baddies have drained 3641694.241898506992612606 ETH from child DAO #59. What is happening ...
2
votes
2answers
4k views

How do I sync the Ethereum Wallet and/or geth to the Ethereum Classic chain without affecting my hard-forked Ethereum chain?

I normally run the Ethereum Wallet and geth on the hard-forked chain. For The DAO ETC withdrawal, I would also like to sync with the Ethereum Classic chain. How do I sync the Ethereum Wallet and/or ...
1
vote
1answer
514 views

Sent ETC from Jaxx to Coinbase ETH wallet accidently [closed]

I accidently sent ETC to an ETH wallet. Sent ETH from Jaxx to a Coinbase ETH wallet. ETC not appearing now on coinbase because I sent it to an ETH address. Please can you help me with this? I am ...
1
vote
1answer
585 views

Fatal: Error starting protocol stack: missing block number for head header hash

I didn't check on the running Geth instance and when I executed a function that logs everything in the Blockchain, I had an error that the port I was listening to wasn't responding. I figured out that ...
1
vote
1answer
295 views

How to modify the gasLimit of the private block chain on the console

as the title,How to modify the "gasLimit" of the private block chain on the console?
0
votes
1answer
42 views

Is there a performance penalty towards creating the maximum number of tokens with ERC-20 etc?

I saw this link: Max possible ERC20 Tokens allowed with 18 decimals? Is there a performance penalty for creating so many tokens? Obviously the number of storage capacity needed for mining will be ...