Hottest Questions Today

1

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1

answer

19

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Why is my NFT showing as a placeholder image instead of the actual NFT image?

gnosis-safe

modified 2 hours ago katspaugh 141

0

votes

1

answer

13

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Is it possible for a server to execute a contract call but for a user to pay the gas fees?

answered 1 hour ago Meriadoc 1

1

vote

2

answers

13

views

How to initialize an array inside the function and push items into it?

solidity contract-debugging storage arrays memory

answered 4 hours ago Sky 148

1

vote

1

answer

13

views

Public Keys vs Addresses on ETH2 Beacon Chain

beacon-chain

answered 5 hours ago benjaminion 8,342

0

votes

2

answers

17

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Using ECDSA to verify a signature inside smart contract

signature private-key keccak mint ecdsa

answered 47 mins ago Undead8 2,939

0

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0

answers

13

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How to use gnosis safe in situations where private key of the safe is needed?

smart-contract-wallets gnosis-safe gnosis

asked 9 hours ago chakshu jain 47

0

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1

answer

18

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TypeError: Member "toString" not found or not visible after argument-dependent lookup in uint256

solidity web3js tokens smart-contract-wallets

modified 9 hours ago Meriadoc 1

0

votes

1

answer

17

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Get list of all child contract addresses from contract factory in solidity

solidity encoding

answered 1 hour ago pbsh 467

1

vote

0

answers

12

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Ive got an Eth wallet for which I have damaged my private key I have 59-60 out of 64 characters in order and the public ID - need to brute force guess

python passphrase

asked 12 hours ago Crypt Wallstreet 11

0

votes

1

answer

14

views

Handling transactions fees when using Chainlink

solidity gas chainlink

answered 10 hours ago Harry Papacharissiou 465

0

votes

1

answer

14

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How to use solidity library in brownie?

solidity brownie

answered 9 hours ago MShakeG 149

0

votes

0

answers

11

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Mint failing on rinkeby with ethers and react. Help troubleshooting?

nft ethers.js rinkeby ipfs mint

asked 15 hours ago user91920 1

0

votes

0

answers

13

views

Refund gas fee Solidity

solidity gas

asked 18 hours ago cjd 3

0

votes

1

answer

12

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How to bit shift a bytes in solidity / assembly?

solidity assembly bit-manipulation

answered 18 hours ago Richard 2,083

0

votes

1

answer

14

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Is MEV possible on bitcoin?

mining bitcoin mev

answered 19 hours ago hroussille 2,361

0

votes

0

answers

17

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Gnosis UI display decoded transaction details

gnosis-safe

asked 22 hours ago S. Stokes 1

0

votes

0

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11

views

How to verify whether an address has been active on OpenSea?

etherscan nft erc-721 opensea analytics

modified 17 hours ago Taras Filatov 180

0

votes

0

answers

11

views

How to allow contract function to run only after receiving gas payment

contract-development transactions erc-20 gas ethereum-wallet-dapp

asked 21 hours ago Banana Bamboo 1

0

votes

2

answers

35

views

Why are my smart contract rinkeby transactions failing?

truffle gas-price rinkeby

modified 7 hours ago quidba7 3

0

votes

1

answer

12

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[SOLVED]: CANNOT find my pending transactions using: ether.js & [provider.on("pending") and provider.getTransaction(tx)]

web3js tokens javascript nodejs ethereumjs

modified 16 hours ago LDK 1

1

vote

1

answer

15

views

Is it better practice to use smaller uint sizes when applicable?

solidity gas uint256 time

modified 13 hours ago Kostiantyn Kurbatskyi 495

0

votes

0

answers

14

views

How to add transaction deadline?

web3js 0x sendtransaction binance-smart-chain

asked yesterday Mohit Chandel 48

0

votes

0

answers

22

views

Best way to convert point coordinate (x, y) to unique token Id

nft solidity-0.8.x overflow

asked yesterday Vladislav Ermoshin 35

0

votes

2

answers

19

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Solidity fund transfer is redirecting to another address

solidity transactions blockchain remix

answered yesterday Ismael♦ 28.3k

0

votes

0

answers

25

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UPDATED: Could it be an issue to deploy Gnosis Safe contracts on a gas less chain?

gnosis-safe gnosis

modified 22 hours ago Cyril 26

0

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1

answer

13

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TypeError: Cannot read properties of undefined (reading 'Contract') - Web3, Next.JS

web3js web3-providers

answered 21 hours ago Konark Verma 1

1

vote

2

answers

11

views

Why are there between 64 and 128 attestations every slot if there's only 64 committees?

proof-of-stake validators attestations slots

answered 18 hours ago benjaminion 8,342

1

vote

0

answers

23

views

I've got scammed and the scammer sent the crypto to a smart contract. Why?

transactions

modified yesterday DannyGM16 11

0

votes

0

answers

19

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How do I solve Gnosis error code GS020 when I attempt to create a Contract Interaction within Gnosis?

gnosis-safe gnosis

modified yesterday Richard 2,083

0

votes

2

answers

15

views

Brownie: Unable to launch local RPC client

brownie

answered 16 hours ago Freddie von Stange 1

0

votes

1

answer

17

views

BSC Flashloan getting Pancake:Locked

solidity bsc flash-loans

answered yesterday Ismael♦ 28.3k

0

votes

0

answers

11

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Hello everyone..I am trying to understand what does this mean in a smart contract (50 uint256)..someone said solidity doesn't recognize decimals [closed]

solidity

modified yesterday Dell Ki 1

-1

votes

2

answers

22

views

Most Popular Smart Contract (in DeFi)

contract-development contract-design

answered yesterday Kenzo Agada 746

0

votes

0

answers

14

views

"Migrations" ran out of gas

truffle truffle-migration truffle-deployment

asked yesterday Tom Blackstone 11

0

votes

0

answers

30

views

Can't import chainlink using web3j

solidity blockchain web3j chainlink

modified yesterday gojic 115

1

vote

1

answer

13

views

How do I set required gas fee to zero for localhost on Metamask?

truffle metamask truffle-contract

answered yesterday DBWeinstein 155

0

votes

0

answers

17

views

How to get all contracts with ERC721 tokens?

erc-721

asked yesterday tubadc 101

1

vote

1

answer

42

views

Does the EVM calculate the gas used for a transaction in real time?

solidity gas gas-price gas-estimate

answered 2 days ago ori 86

0

votes

0

answers

13

views

How to deduct a specific percent from ERC-20 token on every transaction and send it to multiple wallets?

solidity erc-20 ethereumj

asked yesterday baha almomani 1

0

votes

0

answers

11

views

Can opensea be used to stage private listing to a whitelist? [closed]

solidity ether nft opensea

asked yesterday Impulse Five 1

0

votes

0

answers

24

views

Solidity: Disable Buying and Selling if CurrentPrice is below LastTransactionPrice?

solidity

modified yesterday johnnybegoode 1

1

vote

1

answer

12

views

Help with using different ERC-20 tokens with my smart contract.Solidity

solidity

modified 2 days ago toddash 40

0

votes

1

answer

13

views

Getting count of Ethereum transactions per day

transactions ether json-rpc infura chaindata

answered yesterday pbsh 467

0

votes

0

answers

23

views

Retrieve wallet address after connecting Metamask with Web3.js

web3js javascript

asked 2 days ago Steven Helson 1

0

votes

1

answer

14

views

check if key exists in mapping of mapping

solidity

modified 2 days ago razgraf 592

1

vote

1

answer

90

views

If a function returns two or more values and I wish to use one of the two in another function, how do I do that?

solidity javascript

answered Jan 16 at 7:20 Kostiantyn Kurbatskyi 495

-2

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0

answers

17

views

How to connect web3provider to Rinkby network for to deploy gnosis safe?

gnosis-safe gnosis

asked 2 days ago Abhishek 1

0

votes

1

answer

15

views

How loop on Mapping built with struct?

erc-20 mapping

answered 2 days ago pbsh 467

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