Block top - The block selection and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction quantity for the from address (Remember this starts off at 0 so a nonce of a hundred would actually be the 101st transaction submitted by this account) https://yourbookmarklist.com/story20553594/blockchain-explorer-usdt-trc20-fundamentals-explained-https-lamptie2-bravejournal-net-beyond-these-blocks-discovering-the-realm-of-distributed-ledger-explorers