Smart contract accounts have all the data that a user account can have, but some block explorers will even Show some code info as well. Examples include: Nonce - The transaction number with the from address (Remember this begins at 0 so a nonce of 100 would actually be the https://dmozbookmark.com/story20504005/a-review-of-blockchain-explorer-usdt-https-www-webwiki-it-cryptoexplorerhub-com