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 essentially be the 101st transaction submitted by this account) https://bookmarkalexa.com/story6317869/5-tips-about-blockchain-explorer-you-can-use-today-https-fletcher-odonnell-thoughtlanes-net-exploring-further-the-world-of-blockchain