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://bookmarksystem.com/story20417106/everything-about-blockchain-explorer-https-blogfreely-net-pathfrog8-blockchain-trackers-a-gateway-to-comprehending-copyright-transactions