Self-Sovereign Identity (SSI) is a model for managing digital identity where individuals own and control their own data directly, rather than renting it from platforms. Today your identity is fragmented across Google, Facebook, banks, and governments. Each platform controls the database, decides access, and can delete your account without warning. SSI flips this. Your identity lives in a secure digital wallet on your personal device, cryptographically verified on a decentralized ledger. The architecture relies on Decentralized Identifiers (DIDs) and Verifiable Credentials (VCs). In practice, if you need to prove you are over 18, your government issues a Verifiable Credential to your wallet. When a website asks for proof, you use a zero-knowledge proof to confirm your age without revealing your birthdate, name, or address. The privacy implications are significant. Removing centralized honeypots of user data from corporate servers eliminates the incentive for mass data breaches. SSI turns internet users from passive subjects of data-mining into sovereign digital citizens who choose exactly who sees their personal information and when.
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