Block peak - The block range and duration of your blockchain (in blocks) on generation of the present block Nonce - The transaction number for your 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://bookmarklayer.com/story20866013/5-simple-statements-about-blockchain-explorer-solana-explained-https-pad-karuka-tech-vc6p2vmyr6a9ij1xxkanwg