Privado ID

• Name: Privado ID
• URL: https://www.privado.id/
• Category: Identity / verifiable credentials / zero-knowledge authentication infrastructure
• Tags: ethereum-ecosystem
• Summary: Privado ID is productized issuer-wallet-verifier middleware built on the Polygon ID / iden3 lineage, not a new lower-layer identity primitive. The useful question is where policy really sits once the branding is stripped away: issuer-node operation, schema and trust-list choice, wallet defaults, verifier SDK policy, and the still-live Polygon ID to Privado ID transition.
• What it does:
  • Provides wallet, issuer, verifier, and JavaScript SDK tooling for privacy-preserving credential issuance, storage, and verification
  • Supports verifiable credentials, decentralized identity flows, and selective disclosure using zero-knowledge proofs
  • Offers both off-chain and on-chain verification paths, including smart-contract-based verification surfaces
  • Positions itself as open-source identity middleware that can be embedded into wallets, dapps, and broader application ecosystems
  • Maintains public docs, tutorials, and GitHub repositories under the Privado ID / Polygon ID lineage
• Key claims:
  • Official site says Privado ID enables secure identity data verification everywhere and provides middleware infrastructure for applications implementing privacy-preserving digital identity
  • Homepage FAQ materials say the stack includes an Issuer Node, Wallet SDK, Verifier SDK, and JavaScript SDK, and explicitly frame web3 use cases around KYC providers, DAOs, reputation systems, and smart contracts
  • Official docs FAQ still describes the project as “Privado ID (prev. Polygon ID),” highlighting a live brand transition rather than a clean break in the technical stack
  • Docs emphasize private-by-default proofs, no direct issuer-verifier communication, on-chain and off-chain verification, and Sybil-resistance/privacy use cases
  • Public GitHub materials describe Privado ID as a decentralized, private, self-sovereign identity framework with native web3 integration built on a permissionless blockchain
• Whitepaper: No single canonical whitepaper or litepaper was found during this pass. The strongest primary materials were the Privado ID homepage/FAQ, official docs FAQ, and public GitHub materials under the Privado ID / Polygon ID orgs; see ../whitepapers/privado-id-primary-sources-2026-04-25.md.
• Sources:
  • https://www.privado.id/
  • https://docs.privado.id/
  • https://docs.privado.id/faq
  • https://github.com/0xPolygonID
  • https://github.com/0xPolygonID/tutorials

Internal linkages

• Best upward reads: self-protocol and human-passport.

• Best used when issuer-node operation, schema policy, verifier defaults, and trust-list control matter more than the proof-system branding alone.

• Last reviewed: 2026-06-04 UTC