Block top - The block selection and length in the blockchain (in blocks) on development 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 essentially be the one hundred and first transaction https://checkbookmarks.com/story6234935/the-best-side-of-explorer-blockchain-usdt-https-rentry-co-4vomqtzo