Block top - The block selection and duration from the blockchain (in blocks) on development 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 a hundred and first transaction submitted https://funbookmarking.com/story20703492/blockchain-explorer-usdt-trc20-fundamentals-explained-https-md-swk-web-com-onnbpblstmy8giqdrhnkga