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://tbookmark.com/story20479418/5-simple-statements-about-blockchain-explorer-solana-explained-https-www-giveawayoftheday-com-forums-profile-1172807