Block top - The block selection and duration of the blockchain (in blocks) on creation of the current block Nonce - The transaction variety for that from address (Remember this starts at 0 so a nonce of a hundred would truly be the a hundred and first transaction submitted by https://bookmarkforest.com/story20503633/what-does-blockchain-explorer-usdt-mean-https-setiathome-berkeley-edu-show-user-php-userid-13199150