Block top - The block number and length from the blockchain (in blocks) on development of the current block Nonce - The transaction range 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://thebookmarknight.com/story20205929/everything-about-blockchain-explorer-http-www-stes-tyc-edu-tw-xoops-modules-profile-userinfo-php-uid-3693980