Block top - The block number and length from the blockchain (in blocks) on development of the current block Nonce - The transaction range for that from address (Remember this starts off at 0 so a nonce of a hundred would actually be the 101st transaction submitted by this account) https://fatallisto.com/story10605625/the-definitive-guide-to-explorer-blockchain-ethereum-https-urlscan-io-result-0199164a-7dbe-7737-944c-199699cc315c