Plain English
A decentralized identifier (DID) is a self-controlled identity that lives on a blockchain instead of with a central issuer. You hold the keys; you present cryptographic proof of attributes (over-18, accredited investor, KYC-verified) without revealing the underlying data.
How it actually works
DIDs follow the W3C standard. The identifier resolves to a document specifying public keys and service endpoints. Verifiable Credentials are issued against the DID by trusted parties (governments, KYC providers, universities) and selectively disclosed to verifiers — proving age without revealing birthdate, for example.
What it means for you
DID is the long-arc replacement for username/password identity. For HNW principals, the practical near-term application is on-chain accreditation: get verified once by a regulated provider, present the credential to any compliant DeFi venue without re-uploading documents. The infrastructure is being built into wallets like Privy, Dynamic, and Coinbase Smart Wallet right now.
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Educational content only. Not investment, tax, or legal advice.