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://nybookmark.com/story22128458/not-known-details-about-blockchain-explorer-usdt-trc20-https-squareblogs-net-heartgarlic3-delving-into-blockchain-explorers