Block top - The block number and size on the blockchain (in blocks) on generation of the present block Nonce - The transaction number for the from address (Remember this starts off at 0 so a nonce of a hundred would actually be the one hundred and first transaction submitted https://atozbookmarkc.com/story20432980/detailed-notes-on-blockchain-explorer-unconfirmed-transaction-https-vuf-minagricultura-gov-co-lists-informacin-20servicios-20web-dispform-aspx-id-11784754