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 truly be the 101st transaction submitted by this account) https://bookmarkloves.com/story22523478/the-smart-trick-of-blockchain-explorer-app-that-nobody-is-discussing-https-lamm-tolstrup-3-blogbright-net-investigating-the-unseen-the-role-of-blockchain-explorers-in-the-copyright-world