Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction range with the from address (bear in mind this starts at 0 so a nonce of 100 would really be the a hundred and first transaction submitted https://bookmarkusers.com/story20036928/blockchain-explorer-usdt-trc20-fundamentals-explained-https-www-dermandar-com-user-quietquiet9