Block peak - The block variety and size with 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://crossbookmark.com/story20402124/not-known-facts-about-blockchain-explorer-unconfirmed-transaction-https-urlscan-io-result-0199164a-7dbe-7737-944c-199699cc315c