Block top - The block quantity and size on the blockchain (in blocks) on generation of the present block Nonce - The transaction quantity for your from address (bear in mind this starts at 0 so a nonce of 100 would in fact be the a hundred and first transaction https://getidealist.com/story22462820/blockchain-explorer-usdt-trc20-fundamentals-explained-https-telegra-ph-blockchain-trackers-the-key-to-grasping-copyright-transactions-09-04