Block top - The block selection and size with the blockchain (in blocks) on generation of the current block Nonce - The transaction variety with the from address (bear in mind this starts at 0 so a nonce of 100 would in fact be the a hundred and first transaction https://e-bookmarks.com/story6225485/not-known-details-about-explorer-blockchain-ton-https-setiathome-berkeley-edu-show-user-php-userid-13199150