Ethereum

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Answer a question with score of 1 or more.
Awarded 6939 times.
How to develop while experiencing very high Goerli testnet gas fees after merge?
Awarded 17 hours ago
How to get all historic changes of a state variable in a smart contract?
Awarded yesterday
Ethernaut lvl1 : Fallback - how to set msg.value when calling contribute()?
Awarded yesterday
TypeError: Cannot read properties of undefined (reading 'JsonRpcProvider')
Awarded yesterday
Can I tell to a local graph node (the graph) to not scan blocks on initialization?
Awarded yesterday
Troubling shooting hardhat test failure - ERC20 approve & transferFrom issues
Awarded yesterday
TypeError: Cannot read properties of undefined (reading 'JsonRpcProvider')
Awarded 2 days ago
TypeError: Cannot read properties of undefined (reading 'JsonRpcProvider')
Awarded 2 days ago
Python Web3 Contract Filtering
Awarded 2 days ago
Flashbots error unable to decode txn
Awarded 2 days ago
How do i prevent users from selling NFTs they earned from my platform to any external marketplaces like openSea
Awarded Mar 25 at 9:48
Get all Nfts of a collection owned by a wallet using alchemy sdk
Awarded Mar 25 at 8:27
Unable to use usdt token inside contract
Awarded Mar 24 at 12:26
hardhat: want to test an emit event that is in a library
Awarded Mar 24 at 12:26
Ethernaut Level Puzzle Wallet. How Unstructured Storage Proxies work?
Awarded Mar 24 at 12:26
AAVE supply Pool failing with error 'ERC20: transfer amount exceeds allowance'
Awarded Mar 23 at 12:27
How to get contract's ether balance at hardhat / waffle
Awarded Mar 23 at 5:21
How to get contract's ether balance at hardhat / waffle
Awarded Mar 23 at 5:21
SOLVED: Error making a Swap in UniswapV3
Awarded Mar 22 at 15:03
bn.inherits is not a function in snarkjs
Awarded Mar 21 at 19:05
BSC always return insufficient funds for gas * price + value
Awarded Mar 21 at 13:36
How to initialize and assign value to constant in constructor?
Awarded Mar 20 at 17:48
How to batch list into a single bytes object?
Awarded Mar 20 at 12:37
`external` vs `public` best practices
Awarded Mar 20 at 10:17
Windows curl error with JSON-RPC
Awarded Mar 20 at 10:17
Setting ERC-20 token price
Awarded Mar 19 at 11:01
VRFCoordinatorV2Mock contract error
Awarded Mar 19 at 0:48
VRFCoordinatorV2Mock contract error
Awarded Mar 19 at 0:48
While I was working on solidity project I got the following error
Awarded Mar 18 at 22:02
Why am i paying gas to test a smart contract on hardhat
Awarded Mar 17 at 18:57
Read all historical price data of a Chainlink price feed in Javascript
Awarded Mar 17 at 15:49
I Can't Find my Collection on OpenSea Testnet
Awarded Mar 17 at 6:06
How can I deploy a contract with a proxy that inherits another contract with a constructor?
Awarded Mar 17 at 3:28
How to use thirdweb contracts with node v14 in reactjs?
Awarded Mar 17 at 3:08
What uint type should be declared for unix timestamps?
Awarded Mar 16 at 17:35
What uint type should be declared for unix timestamps?
Awarded Mar 16 at 17:35
Using Wagmi Core and Wagmi React together
Awarded Mar 16 at 7:31
SSZ serialization in Ethereum
Awarded Mar 15 at 8:19
Does a TX hash get produced *before* it's been confirmed in 1 block?
Awarded Mar 15 at 4:41
The block number argument in ETH JSON-RPC function calls
Awarded Mar 14 at 11:57
How are smart contracts trusted?
Awarded Mar 14 at 10:50
How to deploy smart contract to main ethereum network
Awarded Mar 14 at 6:34
Avoiding double spending in Plasma Cash
Awarded Mar 13 at 19:26
solidity-coverage : configure to ignore files
Awarded Mar 13 at 7:02
Foundry - Testing function that returns struct
Awarded Mar 13 at 7:02
error when compiling my solidity file with python
Awarded Mar 13 at 6:56
python web3 error: Unknown Account
Awarded Mar 13 at 6:56
where can i find the addresses of the pancakeswap coin pairs smart contracts
Awarded Mar 10 at 17:02
Do read-only and static calls have any gas limitations even though they don't charge gas fees?
Awarded Mar 10 at 11:16
How use payable function with browser solidity?
Awarded Mar 10 at 3:05
Sign transactions offline
Awarded Mar 9 at 22:15
Fetching chain data to to website
Awarded Mar 9 at 22:15
payments ( pre set value) in solidity
Awarded Mar 9 at 9:05
How to programatically get state change of a transaction?
Awarded Mar 9 at 2:47
Remix Testing ChainLink VRF v2 Direct Funding Method
Awarded Mar 8 at 9:51
Prices in output of batch auction
Awarded Mar 8 at 2:10
Web3: How do I get just the first account on testrpc using web3.eth.getAccounts()?
Awarded Mar 7 at 10:27
Array of structures
Awarded Mar 7 at 9:51
Offline transaction signing with web3j?
Awarded Mar 7 at 9:32
Geth has connected to 3+ peers but won't download blocks
Awarded Mar 7 at 3:50
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