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 (Remember this starts off at 0 so a nonce of a hundred would actually be the 101st transaction submitted by this account) https://social4geek.com/story6309947/the-2-minute-rule-for-blockchain-explorer-solana-https-telegra-ph-blockchain-trackers-the-key-to-grasping-copyright-transactions-09-04