Hottest Questions This Month

2 votes

0 answers

364 views

Why is the Vyper Bytecode smaller? What is it giving up?

Patrick Collins

5,319

modified Jun 15 at 15:03

1 vote

1 answer

236 views

Attack on ERC-777 smart contract and UniswapV2Pair resulting in 104 ETH liquidity drain

solidity uniswap reentrant-attacks transferfrom erc-777

Duncan Townsend

36

modified Jun 21 at 12:06

1 vote

1 answer

150 views

What is Terminal Total Difficulty (TTD)?

proof-of-stake difficulty

Quincy C

36

modified Jun 9 at 7:10

3 votes

1 answer

89 views

Where did the number of 32 Eth to become a validator come from?

proof-of-stake validators

upavloff

436

modified Jun 28 at 14:45

0 votes

2 answers

153 views

Help Please hardhat.config.js * Invalid account: #0 for network: Rinkeby - private key too short, expected 32 bytes

ether metamask hardhat smart-contract-wallets hardhat-deploy

Alejandro Morales

1

answered 20 hours ago

0 votes

2 answers

114 views

[SOLVED]PatrickCollins Solidity Course 2022 - Lesson 7: 11:20:38 -> TypeError: ethers.getContract is not a function

solidity javascript hardhat testing chainlink

DorianDaSilva

21

modified Jun 14 at 0:52

0 votes

1 answer

102 views

Error: invalid BigNumber value (argument="value", value=undefined, code=INVALID_ARGUMENT, version=bignumber/5.6.2)

solidity hardhat

brodude8

26

answered Jun 28 at 3:40

0 votes

3 answers

56 views

Can an upgradeable token appear in the asset list?

erc-20 gnosis-safe gnosis

N. Mao

101

answered Jun 29 at 2:33

0 votes

1 answer

118 views

Opensea error: 'AccountData' object has no attribute '_meta' [closed]

nft opensea

JTCon

558

modified Jun 8 at 9:55

1 vote

2 answers

59 views

super keyword usage

solidity remix

Kof

2,435

modified Jun 29 at 21:08

0 votes

2 answers

74 views

console.log not working in scripts/deploy.js and in smart_contract in HardHat

solidity javascript ethers.js hardhat console

Aviral Choudhary

11

answered Jun 6 at 13:36

0 votes

1 answer

44 views

New contract deployment pattern (0x60c06040)?

transactions contract-deployment signature deployed-bytecode

Giuseppe Bertone

4,160

modified Jun 7 at 16:14

0 votes

1 answer

93 views

Module not found: Error: Can't resolve 'crypto' in '/Users/user/Desktop/esample/react-minting-website/node_modules/eth-lib/lib'

web3js nodejs react web3-providers

Ismael♦

29.1k

modified Jun 15 at 5:09

1 vote

1 answer

71 views

Get Signature for Tuple input for EIP712 [duplicate]

web3js contract-development struct ecdsa eip712

Bryant Backus

21

answered Jun 9 at 4:58

0 votes

1 answer

71 views

How to write struct with solidity assembly ( understand assembly )

solidity assembly

Mohsen Haydari

103

modified Jun 19 at 16:29

0 votes

2 answers

55 views

address.call{}(abi.encodeWithSignature()) in solidity returns boolean and what other parameters?

solidity abi fallback-function address.call

sola24

387

modified Jun 21 at 7:58

1 vote

1 answer

84 views

Explain a decompiled smart contract

solidity

Kof

2,435

answered Jun 30 at 7:39

2 votes

1 answer

49 views

Upgradeable proxy contracts- Seperating logic, functionality, & storage contracts. Examples? Resources?

solidity contract-design contract-deployment openzeppelin

Javier Marchetti

406

answered Jun 15 at 16:28

0 votes

1 answer

48 views

Downsides of using ERC721A over ERC721?

solidity contract-development contract-design contract-deployment erc-721

phaze

1,099

answered Jun 8 at 20:54

0 votes

2 answers

48 views

Funds stucked in smart contract

contract-development nft smart-contract-wallets 0x transfer

Giuseppe Bertone

4,160

answered Jun 12 at 10:16

0 votes

1 answer

47 views

Executing a transaction using the Safe API

gnosis-safe

Daniel Sánchez

96

answered Jun 8 at 16:21

0 votes

3 answers

47 views

Pushing a contract to an array in another contract

solidity contract-development truffle contract-debugging arrays

MAB

3

modified Jun 10 at 19:19

1 vote

1 answer

58 views

Can anyone make this function of findMostOccurringString as transaction-less (view or pure)?

solidity contract-development remix mapping library

Ahsan Shah

26

answered yesterday

0 votes

1 answer

74 views

Window.ethereum: Object is possibly 'undefined'

wallets react

Yilmaz

506

answered Jun 12 at 2:43

0 votes

1 answer

74 views

Unable to validate signature using validateERC721OrderSignature(order, signature) function on the ERC721OrdersFeature.sol contract (0xv4)

web3js ethereumjs 0x

mzhu25

56

answered Jun 7 at 1:12

0 votes

1 answer

71 views

Gas price limit in metamask Rinkeby

solidity web3js metamask gas-price rinkeby

Ismael♦

29.1k

modified Jun 23 at 3:19

1 vote

1 answer

55 views

How to transfer an NFT from a contract address to a wallet address

contract-development contract-design nft contract-debugging vyper

Ryan

75

modified Jun 26 at 15:03

0 votes

2 answers

54 views

How to use the Solidity Burn function

solidity tokens smart-contract-wallets burn

lizardev

13

answered Jun 7 at 17:42

0 votes

1 answer

52 views

Use WETH for NFT MArketplace

metamask ethereum-wallet-dapp opensea sendtransaction wrapped-tokens

rihe

186

modified Jun 11 at 16:15

0 votes

1 answer

40 views

Just got my contract drained- how?

solidity contract-development remix hack

Emrah

945

modified 20 hours ago

3 votes

1 answer

39 views

Can I import solidity code (or ABIs) into vyper?

solidity abi import vyper

Charles Cooper

286

answered Jun 8 at 2:55

1 vote

2 answers

50 views

Error when passing the literal string " " to a function with bytes calldata as parameter

solidity hardhat chainlink

Ismael♦

29.1k

answered Jun 21 at 5:31

0 votes

3 answers

64 views

0x batchFillLimitOrders not working with small remainingFillableTakerAmount

0x

Weinbender Wladimir

101

answered Jun 27 at 14:13

0 votes

2 answers

63 views

Help Please Solidity version pragma statement in these files doesn't match the configured compilers in your config*contracts/hello-world.sol ("0.8.4")

solidity javascript hardhat-deploy npm

BHUNTX.eth

3

modified Jun 12 at 13:42

0 votes

2 answers

49 views

sendSignedTransaction web3js

web3js gas raw-transaction fees

Giuseppe Bertone

4,160

modified Jun 10 at 15:20

1 vote

2 answers

38 views

Is there a way to retrieve hexadecimal methodID from function ABI?

javascript ethers.js

hroussille

5,399

modified Jun 7 at 17:27

0 votes

1 answer

38 views

Is there an API to fetch collection-level NFT stats from 0x orders like floor price, total volume, etc?

nft 0x

0x_jess

121

answered Jun 9 at 17:20

2 votes

1 answer

48 views

Upgrade of storage within proxy system

solidity contract-design storage proxy-contracts upgrading

dNyrM

307

modified Jun 8 at 21:03

0 votes

2 answers

46 views

How to access mapping in solidity?

solidity remix mapping

Kerry99

1,528

answered Jun 14 at 13:05

0 votes

1 answer

43 views

UNIT Test Error: No Contract deployed with name Raffle

solidity javascript testing

Mohamed Uzair

11

answered Jun 25 at 16:06

0 votes

0 answers

55 views

Error HH8 Invalid account: #0 for network: bsctest - Expected string, received undefined

contract-deployment

Jinxlo P2p

1

modified Jun 13 at 18:07

0 votes

1 answer

55 views

Error: chainId address mismatch

solidity javascript nodejs ganache smart-contract-wallets

mostafa alipour

1

answered Jun 24 at 11:37

0 votes

1 answer

54 views

web3modal error during Wallet Connect function for web3 in javascript

javascript web3-providers walletconnect

Alan Racciatti

11

modified Jun 20 at 21:56

0 votes

0 answers

54 views

When calling execTransaction manually, it fails with GS026 - Invalid owner provided

gnosis-safe

Turbut Alin

163

modified Jun 24 at 7:26

0 votes

1 answer

53 views

Cheaper way to mint NFTs to addresses( airdrop) by using ERC721 contract?

nft erc-721

anwar

144

answered Jun 10 at 14:58

0 votes

1 answer

53 views

TypeError [ERR_INVALID_ARG_TYPE]: The "data" argument must be of type string or an instance of Buffer, TypedArray Ethers.js encrypt function error

javascript ethers.js

Kerry99

1,528

modified Jun 17 at 11:11

0 votes

1 answer

53 views

How do I download an entire NFT collection, including metadata

nft erc-721 meta-data

saberhq

1

modified Jun 14 at 7:11

0 votes

1 answer

41 views

OpenZeppelin ERC721: difference between safeMint and mint

erc-721 openzeppelin mint

turboza

302

modified Jun 16 at 4:00

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