Bitcoin-Based Identity Systems

11 min readarticle

How Bitcoin's cryptography enables self-sovereign identity and authentication.

Identity Applications:

  • •Login: Sign with Bitcoin address
  • •Verification: Prove ownership without KYC
  • •Reputation: On-chain history
  • •Attestations: Cryptographic proofs
  • •Web of Trust: Decentralized verification

Projects:

  • •Microsoft ION (on Bitcoin)
  • •Lightning Login
  • •Nostr protocol
  • •Web5 initiative