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://allkindsofsocial.com/story5604993/the-definitive-guide-to-explorer-blockchain-ethereum-https-canvas-instructure-com-eportfolios-4028322-entries-14252553