Block top - The block variety and length of your blockchain (in blocks) on development of the current block Nonce - The transaction number for the from address (Remember this begins at 0 so a nonce of a hundred would in fact be the 101st transaction submitted by this account) https://ledbookmark.com/story6170649/the-smart-trick-of-blockchain-explorer-app-that-nobody-is-discussing-https-hedge-fachschaft-informatik-uni-kl-de-nnpg48bpspmldanhox94bq