Block top - The block number and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction amount to the from address (Keep in mind this begins at 0 so a nonce of 100 would really be the 101st transaction submitted by this account) https://bookmarkingfeed.com/story20126853/the-2-minute-rule-for-blockchain-explorer-solana-https-forum-repetier-com-profile-coverjaguar3