ethereum

ethereum

Reusable smart contract

Some total newbie questions on NFT and Ethereum

What is the point of broadcasting existence of a token ID with no initial balance in Ethereum?

When should the ERC-1155 Metadata URI need to be zero-padded to 64 hex characters?

In OpenZeppelin's implementation of ERC20's transferFrom, why is _transfer() called before withdrawer allowance is checked

Add custom field when mint new ERC721 token

How do I create an ethereum burn address?

Does ERC20's transferFrom function fail if it doesn't meet the require statement?

How to calculate LP token worth

Best way to manage sawtooth keys in the broser? (something like metamask)

In which cases a transaction may have 0x00 as the destination address in ethereum?

Get erc-20 token balance inside token

How do I deploy to Ethereum mainnet from Hardhat?

Cannot use transfer or send on solidity

How do I get topics to be human readable, after filtering events with ethers.js

Adding new custom opcode to solidity

A security issue with require(send()) in Solidity

how to transfer fund from msg.sender(amount) to recipient address without using setting msg.value

how to return loop and array element | Data location must be "memory" for return parameter in function | Dynamic Array

Window.ethereum works in Desktop chrome and not in mobile and trustwallet

Ethereum: Why do call functions require gas?

Ethereum Contract call methods return insufficient gas message?

use mappings inside structs in solidity

how to swap Token for ETH with swapExactTokensForETH() using UniswapV2Router02 Contract

BroadCasting an offline transaction

Why can't this etherum tx input data be decoded?

Error during solidity smart contract deployment : Uncaught Error: Callback was already called

"Metamask no longer injects web3" using react box

cannot connect client app with web3js to metamask

TypeError: Cannot read property 'eth' of undefined [closed]

IERC20 public declaration with another address?

How to get the address of erc-20 token contract from token instance

How do i connect to an Ethereum node?

What is the difference between infura and geth?

Execute TX specific block.timestamp

How to fix 'Truffle Migrate' bytecode undefined error

Access mapping of mapping of structs in web3.js

Solidity gas estimation - always out of gas when setting to 0

Logs of a pending ethereum transaction disappeared after confirmation

In Ethereum, when assigning an address, it is throwing parsing error

Ethereum Smat Contract Blocking

Parse Ethereum private key in string in Go

ERC20: transfer amount exceeds allowance

ganache-cli how to read private key from account json file

Ethereum : Am I mining to my correct wallet address?

When I use the same seed phrase for both Ethereum and RSK, why is my address capitalised differently?

Is there a good way to index a lot of data in a smart contract to be able to read it efficiently?

Solidity constructor declaration and statements between function signature and visibility modifieres

Cant access deployed contract with web3 after restarting local server

How can I update data on IPFS

Solidity: Checking if specific bit is set in bytes24

How to send Ether Using Web3 and Gas Charges are Paid from Another Address?

AssertionError: expected '0x0000000000000000000000000000000000000000'

Warning: Function state mutability can be restricted to pure function

How to show withdraw payment amount in MetaMask?

Ethereum transaction giving error 'invalid sender'

Calling transfer function using interface for ERC20

Call to plugin has timed out compilerMetadata - deployMetadataOf - {"from":"udapp","path":"compilerMetadata"}

How to listen for incoming transactions not yet mined for a single address?

I get a declaration error in solidity when I create a variable with "var"

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