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 really be the 101st transaction submitted by this account) https://nimmansocial.com/story10500023/what-does-blockchain-explorer-usdt-mean-https-peatix-com-user-27717689