Block peak - The block range and duration 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://businessbookmark.com/story5957403/5-easy-facts-about-blockchain-explorer-api-described-https-codimd-fiksel-info-7obh-70jsduk4-4exx8mba