Block top - The block number and length in the blockchain (in blocks) on development of the present block Nonce - The transaction selection for the from address (bear in mind this starts at 0 so a nonce of 100 would truly be the a hundred and first transaction submitted https://nimmansocial.com/story10627409/5-simple-statements-about-blockchain-explorer-solana-explained-https-www-tarauaca-ac-gov-br-profile-robleswcifuentes23175-profile