Block peak - The block variety and size 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://growthbookmarks.com/story20539988/facts-about-blockchain-explorer-confirmed-transactions-revealed-https-squareblogs-net-heartgarlic3-delving-into-blockchain-explorers