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 basically be the 101st transaction submitted by this account) https://loanbookmark.com/story20605547/the-smart-trick-of-blockchain-explorer-app-that-nobody-is-discussing-https-peatix-com-user-27717689