Block top - The block number 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 basically be the 101st transaction submitted by this account) https://agendabookmarks.com/story20269506/blockchain-explorer-usdt-trc20-fundamentals-explained-https-md-kif-rocks-qxb6ylbntwcjnvrpqnzeqw