Block top - The block selection and length in the blockchain (in blocks) on generation of the current block Nonce - The transaction amount for that from address (Remember this starts off at 0 so a nonce of a hundred would really be the 101st transaction submitted by this account) https://thebookpage.com/story5981538/the-blockchain-explorer-usdt-trc20-diaries-http-www-drugoffice-gov-hk-gb-unigb-cryptoexplorerhub-com