Block top - The block selection and length of the blockchain (in blocks) on creation of the present block Nonce - The transaction selection with the from address (Remember this starts off at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) Contract https://icelisting.com/story21804077/not-known-details-about-blockchain-explorer-usdt-trc20-https-www-lasallesancristobal-edu-mx-profile-hannabkzpaulsen19225-profile