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 actually be the 101st transaction submitted by this account) https://bookmarkssocial.com/story20423269/the-fact-about-explorer-blockchain-base-that-no-one-is-suggesting-https-fletcher-odonnell-thoughtlanes-net-exploring-further-the-world-of-blockchain