Block top - The block selection and duration of the blockchain (in blocks) on creation of the current block Nonce - The transaction quantity to the from address (Keep in mind this begins at 0 so a nonce of one hundred would truly be the a hundred and first transaction https://single-bookmark.com/story20737249/what-does-blockchain-explorer-usdt-mean-https-heavenarticle-com-author-pathpastor4-452336