Block top - The block quantity and length in the blockchain (in blocks) on development of the present block Nonce - The transaction range with 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://getidealist.com/story22250013/not-known-facts-about-blockchain-explorer-unconfirmed-transaction-https-skitterphoto-com-photographers-1387379-jimenez-deleuran