Block peak - The block selection and size on the blockchain (in blocks) on generation of the present block Nonce - The transaction selection 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://thebookpage.com/story6114653/the-definitive-guide-to-explorer-blockchain-ethereum-https-skitterphoto-com-photographers-1387379-jimenez-deleuran