Block top - The block number and length on the blockchain (in blocks) on generation of the present block Nonce - The transaction quantity to the from address (Keep in mind this starts off at 0 so a nonce of a hundred would actually be the 101st transaction submitted by https://health-lists.com/story21274153/5-simple-statements-about-blockchain-explorer-solana-explained-https-www-instapaper-com-p-16864836