Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction selection for the from address (bear in mind this begins at 0 so a nonce of 100 would in fact be the a hundred and first transaction https://checkbookmarks.com/story6222492/the-definitive-guide-to-explorer-blockchain-ethereum-https-md-farafin-de-0k9kbddstjwuieqthhbjgg