All Questions
23 questions
2
votes
1
answer
40
views
How can I retrieve source code of given contract address but Etherscan doesn't have any
screenshot of Etherscan
I want to deploy UniswapV2Factory on a local network and I found that it needs an address:
constructor(address _feeToSetter) public {
feeToSetter = _feeToSetter;
}
Then I ...
- 21
0
votes
0
answers
27
views
ERC-20 Token appears on Sepolia network but not on Polygon network
I have attempted to create an ERC-20 token, and deployed the contract on both Sepolia and Polygon, it appeared successfully as a token on Sepolia network but not on Polygon.
etherscan
polygonscan
...
- 33
1
vote
1
answer
43
views
Ensure smart contract integrity in web applications
I am developing a web application where two players interact through a smart contract on the Ethereum blockchain. The application's workflow is as follows:
The first player deploys the smart contract....
- 1,134
0
votes
2
answers
634
views
Error verifying Smart Contract via Etherscan API due to evmversion
I'm having an issue verifying contracts using Etherscan API when I use a different evm version from the standard compiler version.
In details I'm compiling using v0.8.21 and targeting to paris (for L2)...
0
votes
1
answer
48
views
Smart contract interaction error "code=INVALID_ARGUMENT, version=bignumber/5.1.1)"
enter image description here
Hello.
How can i solve this?
Thanks
I think there should be some kind of symbol betveen values, but i tryed different symbols, but dose not work for me. I don't know much ...
- 1
-1
votes
1
answer
68
views
Sending less than 1 ether to verified smart contract
I am trying to make payable function that allows to send amount less than 1 ether. And it works in Remix where I can choose Wei/Gwei/Ether but when I verify my contract on Etherscan it allows me to ...
- 1
0
votes
1
answer
677
views
Verify contract with bytes constructor argument
I am trying to verify my contracts via etherscan and hardhat. Everything seems fine with contracts without constructor arguments. I do it with
npx hardhat verify ${address} --network goerli
The ...
- 139
1
vote
1
answer
4k
views
'Unrecognized task verify' while verifying smart contract
verify task not found in hardhat pre-defined tasks in hardhat package.
Error HH303: Unrecognized task verify
HardhatError: HH303: Unrecognized task verify
at main (/home/oem/Documents/final-rain-...
- 189
-1
votes
2
answers
419
views
HardHat - Fail - Unable to verify / Etherscan
Here's my contract.
// SPDX-License-Identifier: MIT
pragma solidity >= 0.7.3;
contract terceiroTest {
// We pass and old String, a new string and when this event is
// broadcast everybody ...
user5734496
0
votes
1
answer
3k
views
Etherscan has no support for network sepolia with chain id 11155111
I am trying to verify my deployed contract from truffle and getting "Etherscan has no support for network sepolia with chain id 11155111" error. So I am working with Etherscan and I deployed ...
2
votes
1
answer
1k
views
How pass array of numbers to contract function in Etherscan?
I have this piece of code from a solidity contract:
function loadMintIDs(uint256[MAX_TOKENS + 1] memory array) external onlyOwner {
require(array.length == MAX_TOKENS + 1, "List ...
- 355
0
votes
1
answer
173
views
Gave the wrong ABI to etherscan.io and I need to send a new one
The contract is already verified and published but I need to give a different ABI. However I can't reverify the contract.
- 13
0
votes
1
answer
618
views
How to change old implementation contract address on etherscan?
I wrote upgradable smart contract using solidity and upgraded contract several time.
When I upgraded smart contract, implementation contract address was changed.
But under that address, the old ...
- 51
-1
votes
3
answers
99
views
New contracts visibility
first of all, excuse me because I am starting to learn Solidity programming, and this question is surely trivial for most of you, but I haven't found any answer yet.
When I create a simple smart ...
1
vote
0
answers
263
views
Filscoin smart contract written in solidity 0.8.0 is missing the terms and conditions Governing FILS ownership, holding and circulation
I was checking the source code of the new Filscoin token on etherscan.io Filscoin smart contract
It was missing all the terms and conditions Governing FILS ownership, holding and circulation:
1. FILS ...
- 11