Block peak - The block range and duration with the blockchain (in blocks) on generation of the present block Nonce - The transaction number for 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://loanbookmark.com/story20880521/the-2-minute-rule-for-blockchain-explorer-solana-https-rentry-co-4vomqtzo