airKUNAThe problem
Onchain governance and public-goods funding are broken by Sybil attacks: one person spins up thousands of wallets and drowns out honest voters. Existing fixes are weak or centralized — biometrics (privacy-hostile), social graphs (collusion-prone), or single-company KYC (a new gatekeeper).
Meanwhile, every EU citizen is getting a state-issued digital identity (eIDAS 2.0 EUDI Wallet, mandatory by end-2026; in Croatia already live as Certilia, eIDAS High assurance). That trust anchor exists — but there is no open, privacy-preserving bridge from it to a public blockchain.
What we build
A protocol that turns a verified national eID login into a soulbound token (SBT) on Gnosis Chain, where one person = one identity across any number of wallets, enforced by a non-reversible nullifier = HMAC(OIB) — the raw national ID never touches the chain or any plaintext store (GDPR by design).
- Source-agnostic: Certilia today, EUDI Wallet (SD-JWT VC / mDoc) tomorrow → works for all 27 EU states.
- Composable: a public-chain SBT usable by any DAO, quadratic-funding round, or onchain vote — unlike the EU's permissioned EBSI.
- Private voting: MACI / Semaphore zk-nullifiers give one-person-one-vote without linking vote to citizen, with receipt-freeness (anti-vote-buying).
Why it's novel (verified prior-art scan)
Every component has neighbors (World ID, Rarimo/zkPassport, EBSI, Acurast), but the specific bridge — a live national eID (OIDC) → onchain personhood SBT — is an unoccupied space. World ID uses biometrics; Rarimo uses passport NFC; EBSI is permissioned and off-DeFi. We root in the EU's own mandatory eID and land it on a public, composable chain. The nullifier-registry + zk design mirrors proven practice (World ID); our differentiator is the eID root + EU-standard alignment + Croatian first-mover.
Why fund it as a public good
- 100% open source — contracts, verifier node, docs. ITalk is a non-custodial software provider; regulated identity issuance stays with licensed parties (AKD/Certilia, EUDI). Minimal GDPR surface.
- EU-strategy aligned — directly complements eIDAS 2.0 / EUDI Wallet rollout (2024–2027) with the self-sovereign, composable layer the regulation itself gestures at (Recital 14: "zero-knowledge proof").
- Reusable by everyone — municipalities, associations (udruge), cooperatives, DAOs, participatory budgets.
What we're asking for
| Track | Program | Ask | Use |
|---|---|---|---|
| Now | EU NGI Pilots (cascade funding, no consortium needed) | ~€60,000 | MVP: IdentityRegistry + PersonhoodSBT + verifier-A (zkTLS-over-Certilia), open-sourced |
| Next | Gnosis / GnosisDAO ecosystem grant | €25–100k | Deploy, audit prep, Safe/relayer integration |
| Next | Optimism RetroPGF / Octant / Gitcoin | retro | Reward shipped public-good usage |
| Later | Digital Europe / EUDI Large-Scale Pilot (via consortium: POTENTIAL/EWC/NOBID/DC4EU) | consortium share | EUDI Wallet source (SD-JWT VC/mDoc), pan-EU |
Milestones (12 months)
MVP
Nullifier registry + SBT contracts on Gnosis testnet; verifier-A (zkTLS/Certilia) PoC; mock issuer/verifier harness.
Pilot
First real Croatian-eID mints; a live association (udruga) vote; nodes on the public map.
Privacy
MACI/Semaphore anonymous voting; pepper threshold-custody.
Decentralize & EU
Optional Android verifier mesh (on Acurast substrate); EUDI Wallet verifier track; security audit.
Team & assets
ITalk d.o.o. (est. 2016, Zagreb) — already ships the surrounding stack: Certilia eID verification in production (domovina-api), a self-custody EURe wallet + Safe/relayer rail (pay.domovina.ai), an out-of-band SMS proof gateway (sms.domovina.ai), and a public GIS map of Croatia (karta) to visualize the node network. This protocol is the identity layer that ties them together.
Not investment/legal advice. Freedom-to-operate note: a formal patent/FTO review is planned before any commercialization; the protocol is released as an open public good, not a patented product.