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Alireza
  • Member for 4 years, 3 months
  • Last seen more than a month ago
  • Iran
3 votes
2 answers
3k views

Error: This contract object doesn't have address set yet, please set an address first

3 votes
2 answers
476 views

Link a library to a smart contract only with Solidity and bytecode

2 votes
2 answers
1k views

How do i change Truffle default account after contract deployment to interact with it?

2 votes
1 answer
104 views

How to reverse a Solidity bytes sorting?

2 votes
4 answers
892 views

Can the mapping storage change after contract deployment?

1 vote
3 answers
791 views

Deploy smart contract with Node-js

1 vote
4 answers
602 views

Assigning address, data, and gas to smart contract to deploy with Node-js

1 vote
2 answers
56 views

When i call a function: Error: Returned error: VM Exception while processing transaction: invalid opcode

1 vote
1 answer
1k views

What is role of pure.js for adding web3.js

1 vote
1 answer
827 views

How to create an interaction between a smart contract and a HTML file with Node-js?

1 vote
1 answer
92 views

Can import Python module to Vyper smart contract?

1 vote
3 answers
229 views

Is it possible to retrieve an EOA public key from its Ethereum address by Solidity?

1 vote
0 answers
28 views

How to set Ethereum protocol in the genesis block file for a private Ethereum network?

1 vote
1 answer
631 views

What is the formula for calculating Ethereum block size in megabytes?

1 vote
1 answer
52 views

No module named 'fraction' in BiAn src to obfuscate smart contract source code

1 vote
2 answers
943 views

Contract deployment with "truffle-contract"

1 vote
0 answers
20 views

How to automatically start GoEthereum when Microsoft Windows starts?

1 vote
0 answers
70 views

MetaMask can't detect token in local network

1 vote
1 answer
83 views

In PoA network, Signer node doesn't work and "Persisted the clean trie cache" log printed by Geth!

1 vote
0 answers
26 views

NodeJS doesn't log any thing on the console for contract deployment

0 votes
1 answer
14 views

How to create an instance of a contract in Truffle that deployed by another Ethereum node?

0 votes
1 answer
178 views

Can send some data from smart contract to an EOA by Solidity call statement?

0 votes
1 answer
132 views

How can I get message from an Ethereum transaction?

0 votes
1 answer
41 views

Is there a way to change the block hashing method of private Etherem?

0 votes
0 answers
13 views

Reducing Ethereum gas costs for crypto exchanges using layer 2 platforms

0 votes
0 answers
19 views

Bridging ethers without private keys

0 votes
1 answer
33 views

Does subscribe("newBlockHeader",...) consistently provide the header of the most recent block?

0 votes
0 answers
16 views

Is it possible to establish a local network between specific Ethereum accounts within the same operational system using Geth?

0 votes
1 answer
25 views

InvalidResponseError: Returned error: unknown account

0 votes
1 answer
646 views

Why my contract binary does not set?