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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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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....
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 ...
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 ...
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 ...
9
votes
2answers
970 views

How does Ethereum Classic differ from Ethereum?

What are the technical differences between Ethereum Classic and Ethereum?
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 ...
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 ...
7
votes
2answers
3k views

How to configure parity to work with the ETC chain?

I have some ETC/DAO-C funds that I want to claim, so I'm interested in running a parity node to do this. How can I configure parity to follow the ETC chain?
7
votes
1answer
460 views

Can I use web3 with Ethereum Classic?

I just learnt using web3 to interact with Ethereum. Is there a similar library to web3 to work with Ethereum Classic? Is there a testnet faucet? Does it work with Parity? Thanks in advance for your ...
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 ...
6
votes
3answers
1k views

I get error couldn't find module 'ethereumjs-wallet/hdkey'

I was running this code deploy.js const HDWalletProvider = require('truffle-hdwallet-provider'); const Web3 = require('web3'); const { interface, bytecode } = require('./compile'); const provider = ...
6
votes
1answer
613 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 ...
6
votes
2answers
515 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 ...
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 ...
5
votes
2answers
866 views

Is there any GPU that has 100+ Mh/s?

After I browsed http://www.mininghwcomparison.com, I found some GPU that had a 100+ hashrate, to 250Mh/s. I checked many other sites, and I didn't see any GPU that goes over 50MH/s, so is this site ...
5
votes
1answer
4k views

storage warning in solidity! [duplicate]

storage error is showing in line number 6 for string title, If I add the storage keyword in between, how does it affect my contract? Does it affect my byte code or gas consumption in later use. The ...
5
votes
1answer
450 views

How to replay a transaction on classic?

I have looked to split and sell my etc and have successfully split with test transactions replaying on classic, however the main transaction has not replayed for 24 hours and I would like to force a ...
5
votes
1answer
372 views

ETC/ETH split still safe after October 18 2016 hardfork?

Does this Steemit solution still work in exactly the same manner as before the HF of October 18th? Do I need to wait for the second HF/ETC HF coming next week, or can I try splitting already (since ...
5
votes
0answers
349 views

Trying to send ETH from Mist Wallet to Poloniex, received ETC instead [closed]

I want to send both my ETC and ETH to Poloniex. I have a basic understanding of the DAO fork and know nothing about programming. I googled something about a replay attack and using a split contract. ...
4
votes
2answers
607 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 ...
4
votes
1answer
955 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 ...
4
votes
2answers
968 views

Is there an api to get list of transactions from non forked blockchain / classic Ethereum

Now that the hard fork is complete, there are two blockchains - the forked one for ETH (at 1920000) and the original is for the ETC. The etherscan.io provide an api to get list of transactions for ...
4
votes
1answer
40 views

Where’s the equivalent of Yellow paper for Ethereum classic?

Ethereum classic performed changes never implemented on Ethereum like on mining. I do expect them to have their own paper for detailing this. But it seems it’s not called the yellow paper… Even on ...
4
votes
1answer
269 views

Using Ethereum Classic with web3.py

I successfully integrated Ethereum (ETH) in my product. Now, I want to integrate Ethereum Classic(ETC) in my product. I am using web3.py for ETH. Are there any documentations or libraries for ETC? How ...
4
votes
2answers
4k views

What Is The Easiest Way To Split ETC from ETH in 2017

I am not very technical. I want to know if there is an easier way to split eth from etc without using the mist wallet 0.8.1 in 2017.
4
votes
2answers
2k views

Solidity compile Expected token Comma got 'Identifier'

I'm trying to compile a contract in the solidity browser compiler and get this error: Expected token Comma got 'Identifier' person.setRent(uint256 _rent); What is the token Comma in ...
4
votes
1answer
404 views

What happened with the presale ether after the fork?

I have never accessed my presale ether. As I understand, a major fork occurred some time ago. I have some confusion regarding the current situation. What will happen to my ether? Do I get both ETC ...
4
votes
1answer
181 views

Is Atomic swapping between ETH and ETC possible?

Wondering if cross chain atomic swapping between ETH and ETC without using poloniex, then the world can be merged in more cool way.
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 ...
4
votes
0answers
304 views

How can I use a Presale JSON file to keep my ETH long-term in cold storage and sell my ETC seperately?

I received Ether during the Pre-sale in June 2014 and received a JSON file and have the password. I have never tried to access these funds. I found out that I should have ETC & ETH due to the hard-...
3
votes
3answers
1k views

Is there a list of Ethereum Classic block explorers?

Most Ethereum block explorers are only for Ethereum, but not Classic. Is there a list of Ethereum Classic explorers?
3
votes
2answers
2k views

Eth address can't be used for mining

I'm trying to mine from my linux, but when I run the following command: ethminer -F http://ethereumpool.co/?miner=4@ERroYPhmyUFMgPNRJEDNBlaBlaBla@Optional I get error JSON_PARSE_ERROR: The JSON-...
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?
3
votes
2answers
2k views

How can I split my ETH and ETC if I have an account that made a transaction with the WithdrawDAO contract?

Let's say: I own account A, which had a 100 ETH pre-DAO balance. Pre-fork I sent 50 ETH from A -> DAO. Post-fork I had 50 ETHF and 50 ETHC in A. Post-fork I made a transaction with the WithdrawDAO ...
3
votes
2answers
1k views

Excel sheet of difficulty hash of Ethereum

I am trying to acquire an excel spreadsheet or csv file with the daily or weekly historical difficulty rate of ETH or ETC. Can you please make a suggestion on how I can get that information? Thanks ...
3
votes
1answer
365 views

How do I pass enode URI's to --reserved-peers?

So I know I have to type in terminal: parity -j --reserved-peers But I do not know what to type after --reserved-peers, The actual peers I want to add are listed here. But I do not know if I am ...
3
votes
1answer
970 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
2answers
3k views

How to make a GUI with Geth

Actually, I'm not even sure if what I'm asking is possible. At the moment, I can run a script in the Geth Console which is creating contract in local. I would like to create a simple interface with 2 ...
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 ...
3
votes
1answer
289 views

How it is possible to keep multiple copies of same transaction data at multiple nodes forever?

I have read about DApp "decentralized applications" & Blockchain but still I am unable to understand how multiple nodes can keep whole history of all transactions forever? After some time when ...
3
votes
2answers
1k views

Parity installed. How to convert to ethereum classic chain?

I have recently purchased some ETC (ethereum classic tokens). I wanted to stored them in Parity. I have installed the Parity (Homestead?-same). Then I tried to convert to ETC chain by CD>parity--...
3
votes
1answer
406 views

Is running an app on Ethereum Classic cheaper than on Ethereum?

ETC price is 1/10 that of ETH, so theoretically it could be cheaper to run an app on ETC instead of ETH. However, I don't see users switching to ETC in droves, which suggests that it might not be. ...
3
votes
1answer
337 views

Please Help! ReplaySafeSplit contract not working after sending too much ETH

I am hoping someone has a answer to what I think is a relatively simple question. I started splitting my ETC from ETH using the ReplaySafeSplit contract. Some test and smaller transactions worked fine,...
3
votes
1answer
1k views

Is that worth to take the latest CPU to mine Ethereum?

I've been thinking that it's actually worth, but I'm pretty sure I'm missing something there, as I looked into the last AMD 8x R9 390, that has a 250MH/s rate, which is pretty impressive, while it ...
3
votes
1answer
477 views

Reclaiming ETH from “The DAO” on Both ETC and ETH Chains

If before the fork I invested all my ether in "The DAO", then, if I understand correctly, after the fork, on the ETH chain I can withdraw my ETH from "The DAO" and get all of it back, which I have ...
3
votes
1answer
90 views

About Ethereum testnet 61 (Ethereum Classic)

I know that Ethereum was forked 2 chains due to DAO hacking. so Ethereum Classic was borned at that time but 2 chains are equal technically. Network number is different between Ethereum(number is 1) ...
3
votes
2answers
2k views

ether from json file

I have a json file with ether created before fork. Now I want to sell ETC without moving ETH. My question is how to do it properly? What if I'll restore file into ETC wallet and spend it. Is possible ...
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
2answers
614 views

Is it still possible to replay a single transaction on ETC and ETH from a pre DAO-fork address? [duplicate]

If, for some reason, I want to spend both ETH and ETC to the same address in a single transaction right now, how would I do that? The ether is currently in a pre DAO-fork address.
3
votes
1answer
742 views

How does one tell if your paying a ETC or ETH address?

How can you tell if your paying an ETC or ETH address? Which wallets can check for you? It's scary if I have both eth and etc wallets and when I make a payment it deducts from both.