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.
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. 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.
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.
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.
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.
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.
credential lifecycle
issuerKYC once
credential · off-chain
holderown keys
ZK presentation · 10s
verifierchecks roots
status roots
trust roots
fig. 1 — credential lifecycle · 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: agent identity
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.
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 →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 →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 →We are just getting started — join early
The specifications are frozen and the chain’s trust registry — issuers, bonds, council, status heartbeats — is 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, or read how the token pays for security.