FAQ

I'm following the hello world contract exercise step by step, but when I want to deploy contract address "npx hardhat verify --network goerli DEPLOYED_CONTRACT_ADDRESS 'Hello World!" which is step 3 I get this error message "Error in plugin @nomiclabs/hardhat-etherscan: DEPLOYED_CONTRACT_ADDRESS is an invalid address."

why do we need alchemy rpc url with keys to deploy or intract when i can just use random mainnet url from google