Wallets resemble cookies in some ways and improve upon them in others. Like a cookie, a wallet is a unique, anonymous identifier. Applications can create wallets on a user’s behalf and append metadata, just like a cookie,. In addition, a user can exert influence and control over each.
Better than a cookie, the wallet records purchases on-chain and makes them public. Imagine being able to segment and target based on millions of users’ purchasing history in real-time.