Block top - The block number and length from the blockchain (in blocks) on development of the current block Nonce - The transaction range with the from address (bear in mind this starts at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://bookmarklayer.com/story20608962/5-simple-statements-about-blockchain-explorer-solana-explained-http-king-wifi-win-index-php-title-boelkamper2160