Block top - The block selection and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction variety for that from address (Keep in mind this starts at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) https://classifylist.com/story22723429/5-simple-statements-about-blockchain-explorer-solana-explained-http-king-wifi-win-index-php-title-boelkamper2160