Block top - The block quantity and size on the blockchain (in blocks) on generation of the current block Nonce - The transaction quantity to the from address (Remember this starts off at 0 so a nonce of a hundred would really be the 101st transaction submitted by this account) https://eternalbookmarks.com/story20356507/the-smart-trick-of-blockchain-explorer-app-that-nobody-is-discussing-https-diigo-com-010nvri