Block peak - The block variety 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://bookmarkcork.com/story21549417/blockchain-explorer-fundamentals-explained-https-hedgedoc-eclair-ec-lyon-fr-6mkao4fyqry-pm5xpak7hg