> KYC-backed identity for AI agents. A sovereign proof-of-stake Layer-1 for reusable, privacy-preserving identity credentials — no PII on-chain. Sovereign identity Layer-1 # KYC-backed identity for AI agents. MintID is a permissionless proof-of-stake blockchain for reusable, privacy-preserving, KYC-backed identity credentials — for people and for AI agents (zero-knowledge Know Your Agent). Approved issuers vouch for holders; holders keep their keys and prove claims with zero-knowledge presentations. No raw KYC, PII, or presentation logs ever touch the chain. [How it works](/en/technology)[KYC for AI agents](/en/agent-kyc) the credential your keys No jargon ## MintID in 60 seconds Today, proving one small fact about yourself means handing over your whole passport — again and again, to every website, and hoping none of them leaks it. MintID fixes that: verify once, prove anything, reveal nothing. 01 ### You verify yourself once A trusted, approved organisation checks your identity one time — the same way a bank would. That’s the last time anyone needs to see your documents. 02 ### You get a digital credential only you control Think of it as a passport that lives in your pocket and answers questions without opening. Nobody — not even us — holds a copy or the keys. 03 ### You prove facts, not identity A website asks “are you over 18?” and your credential answers “yes” — cryptographically, in seconds — without showing your name, your birthday or which document said so. Like showing you’re old enough without handing over the passport. 04 ### Your AI agents inherit the trust Verify once and every AI agent you deploy can prove a real, accountable human stands behind it — without revealing who you are. That’s the missing trust layer for the agent economy. ## Public trust infrastructure — never a database of people The chain carries only accepted-issuer records, accepted-verifier records, status-root commitments, staking, governance and audit commitments. State scales with issuers and verifiers — never with the number of holders. ZK ### Zero-knowledge presentations Holders prove claims — “over 18”, “grade ≥ A3”, “credential active” — against on-chain trust roots without revealing the underlying attributes or which credential. KEY ### You hold your keys Credentials and proof secrets stay under the holder’s control. No issuer, verifier, validator, council or custodian ever holds your private keys. ⊘ ### No PII on-chain Names, addresses, biometrics, credential payloads, serial numbers and presentation logs never touch the ledger. The chain is not a database of identity documents. ◈ ### Sovereign by design Its own native token, validator set, consensus rules and governance from launch — built on Cosmos SDK and CometBFT rather than reinventing consensus. √ ### Root-based status Issuers publish compact status roots, not per-holder records. Credential status is checked off-chain against a private witness, so state never grows with holders. 10s ### 10-second proofs Every presentation is valid for just ten seconds and is bound to a unique challenge, audience, policy, status root and finalized chain height. The invariants behind this design — and why the chain is sovereign from launch — are on the [about page](/en/about). The triangle ## Issuer → holder → verifier KYC happens once, off-chain, with an accepted issuer. From then on the holder proves claims directly to verifiers — in zero knowledge, anchored to on-chain trust roots. lifecycle issuerKYC once credential · off-chain holderown keys ZK presentation · 10s verifierchecks roots status roots trust roots MintID chainno PII stored — ever no PII ever touches the chain 01 ### An accepted issuer issues a credential A council-approved KYC organisation verifies the person once and issues an anonymous credential with a private assurance grade (A1–A4). 02 ### The holder keeps custody The credential and its proof secrets live with the holder. They can hold several credentials from several issuers, with no public person-level identifier. 03 ### The holder builds a perishable proof To a verifier’s challenge, the holder builds a 10-second zero-knowledge presentation bound to that verifier, origin, policy, status root and chain height. 04 ### The verifier checks the proof, keeps the person The verifier checks the proof against the latest finalized roots and keeps only a minimal decision record — never the proof, never any PII. New: Know Your Agent (KYA) ## The missing trust rail for agentic AI A human does KYC once, then mints many privacy-preserving agent credentials. Each agent proves “I am operated by a KYC-verified, liable human principal at assurance ≥ G, within delegated scope S” — without revealing which human, and without any two of that human’s agents being linkable. [Explore agent KYC](/en/agent-kyc) AccountablePrivateSybil-resistantRevocable ## Built for the whole network [ ### Issuers The organisations that check who you are. They verify a person once, vouch for them from then on — and are the only ones who could ever link a credential back to a human, strictly under due process. Learn more](/en/issuers)[ ### Verifiers The businesses that need an answer. They ask “is this person over 18?” or “is a real human behind this agent?”, get a yes or no in seconds, and never have to store anyone’s personal data. Learn more](/en/verifiers)[ ### Validators The operators that keep the network honest. They run the machines that secure the chain and earn staking rewards — without ever seeing a passport, a name or a KYC file. Learn more](/en/validators) ## We are just getting started — join early The corpus is frozen at v2.0 — re-frozen after a published economic-viability audit — and the chain’s trust registry — issuers, bonds, council, status heartbeats — and the verifier plane — registry, proven chain reads, ten-second presentation checks — are implemented and under review. See exactly where the project stands, or get in touch about issuing, verifying or validating. New here? Start with the [frequently asked questions](/en/faq), or read how [the token pays for security](/en/tokenomics). [See the roadmap](/en/roadmap)[Get in touch](/en/contact) --- Source: https://mintid.net/en · MintID — KYC-backed identity for AI agents