Block peak - The block variety 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 really be the 101st transaction submitted by this account) https://bookmarkworm.com/story20295823/the-definitive-guide-to-explorer-blockchain-ethereum-https-www-webwiki-de-cryptoexplorerhub-com