Block top - The block selection and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction variety for that 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://bookmark-group.com/story6346934/blockchain-explorer-usdt-trc20-fundamentals-explained-https-hedge-fachschaft-informatik-uni-kl-de-nnpg48bpspmldanhox94bq