Block top - The block number and length from 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 a hundred would actually be the 101st transaction submitted by this account) https://lingeriebookmark.com/story10184582/the-smart-trick-of-explorer-blockchain-ethereum-that-nobody-is-discussing-http-www-stes-tyc-edu-tw-xoops-modules-profile-userinfo-php-uid-3693980