Block top - The block number and size on the blockchain (in blocks) on generation of the present block Nonce - The transaction amount to the from address (Remember this starts off at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted by https://letsbookmarkit.com/story20504039/what-does-blockchain-explorer-usdt-mean-https-www-webwiki-it-cryptoexplorerhub-com