Block top - The block variety and length of 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 100 would essentially be the 101st transaction submitted by this account) Agreement https://atozbookmark.com/story20460635/not-known-details-about-blockchain-explorer-usdt-trc20-https-setiathome-berkeley-edu-show-user-php-userid-13199150