Block top - The block number and length in the blockchain (in blocks) on creation of the present block Nonce - The transaction number for your from address (bear in mind this begins at 0 so a nonce of one hundred would truly be the a hundred and first transaction https://bookmarkmoz.com/story20835422/not-known-details-about-blockchain-explorer-usdt-trc20-https-codimd-fiksel-info-7obh-70jsduk4-4exx8mba