Block top - The block selection and duration of 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://socialexpresions.com/story5761760/not-known-details-about-blockchain-explorer-usdt-trc20-https-motionentrance-edu-np-profile-sticknurse6