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I have a private blockchain, mined by one ec2 instance. When I restart the instance, significant part of the chain disappear with all transaction and contracts on it. How can...
Asked on 01/05/2022 by Tomas Batrla
1 answerThis is strange. My web3 script to deploy a contract seems to work, but always activates the .on('error', fcn) clause even though there is no error. The message says Transaction...
Asked on 01/05/2022 by bitsanity
2 answer<!DOCTYPE html><html><center> <head> <meta charset="utf-8"> <title>Mediachain</title> </head> <body background="blockchain_background.jpeg"> <h1>Mediachain</h1> <h2 id="Return"></h2> ...
Asked on 01/03/2022
1 answerI am running a private ethereum network using geth --rpc --rpccorsdomain "*" --datadir ./chaindata --port "30330" --nodiscover --rpcapi "db,th,net,web3" --networkid 2010 init genesis.jsonand then geth ...
Asked on 01/03/2022 by Arpit Gupta
1 answerI am building a smart contract which keep the token holder's eths for a while and give them rewards when they withdraw. The reward is given from the ethers collected...
Asked on 01/03/2022 by Fariha Abbasi
1 answerThe OpenZeppelin version I'm using is Solidity 0.5.0 but I'm using 0.5.15 in my core contracts. Everything is compiling but I'm having some issues verifying the contract on Etherscan and...
Asked on 01/03/2022
2 answerIf you were writing some instructions and one of them was:Provide the Ethereum ECDSA signature of the file using the person'sEthereum address.Would the above instruction have a consistent meaning...
Asked on 01/03/2022
1 answerI want to get the logs of an contract address by filtering the even with transfer Event. I cant use Infura for its restrictions and limits. So i want to...
Asked on 01/03/2022 by mzaidi
2 answerI want to register a name in ENS, but I have only done it from MyEtherWallet because everything is built-in. But now I want to use an address I...
Asked on 01/01/2022 by Moisés Briseño Estrello
1 answerI want to run javascript on node locally against Web3. I require a minimal amount of information security and I just want it to work. I tried snap run parity...
Asked on 01/01/2022
1 answerGet help from others!
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