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 actually be the 101st transaction submitted by this account) https://companyspage.com/story5245841/the-greatest-guide-to-blockchain-explorer-unconfirmed-transaction-https-notes-io-ww2s8