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How would that work? Bitcoin doesn't really provide an identity.

• hxc 14y ago
  Yup. Bitcoin is meant to be anonymous.
  • frisco 14y ago
    This is a common misconception. Bitcoin isn't anonymous, but there isn't really a way to use your addresses as an "identity" easily, either. Sure you could use a Bitcoin address as the keypair it is to authenticate yourself, but that seems like an odd way to sign up for a service.
  • celticninja 14y ago
    no it is not, its decentralized nature does lend itself to anonymity however.
• alexbosworth 14y ago
  I've seen it work on a few sites, like AnonymousAds, but yeah it's not a 1:1 mapping
• bnr 14y ago
  You could create a login-token signed with your bitcoin private key. Wallet software would have to implement that, though.