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 100 would really be the a hundred and first transaction https://zbookmarkhub.com/story20817379/top-guidelines-of-explorer-blockchain-solana-https-www-instapaper-com-p-16864836