Block peak - The block variety 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://getidealist.com/story22200246/the-smart-trick-of-explorer-blockchain-ethereum-that-nobody-is-discussing-https-squareblogs-net-heartgarlic3-delving-into-blockchain-explorers