Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction number for the from address (bear in mind this begins at 0 so a nonce of one hundred would essentially be the one hundred and first transaction https://atozbookmarkc.com/story20433694/not-known-details-about-blockchain-explorer-usdt-trc20-https-notes-io-ww2s8