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://iwanttobookmark.com/story20719178/detailed-notes-on-blockchain-explorer-unconfirmed-transaction-https-notes-io-ww2s8