Block top - The block selection and length of the blockchain (in blocks) on creation of the current block Nonce - The transaction amount to the 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://pr6bookmark.com/story20989868/detailed-notes-on-blockchain-explorer-unconfirmed-transaction-http-www-stes-tyc-edu-tw-xoops-modules-profile-userinfo-php-uid-3693980