Block peak - The block variety and size on the blockchain (in blocks) on generation of the present block Nonce - The transaction selection for the from address (bear in mind this starts at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) https://hindibookmark.com/story22272730/5-simple-statements-about-blockchain-explorer-solana-explained-https-md-kif-rocks-qxb6ylbntwcjnvrpqnzeqw