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://moodjhomedia.com/story3141137/blockchain-explorer-search-an-overview-https-md-darmstadt-ccc-de-znwtrv3frkwon6rj4y8pua