Competitive Edge Package
This page packages the strongest ideas from current public Stellar ZK projects into AidShield’s own lane: private humanitarian aid claims with accountable donors, vendors, issuers, and incident controls.
Crisis Aid Mission Demo
AidShield now has a clearly labeled synthetic flood-relief mission: NGO operator issues an encrypted QR, beneficiary claims privately, approved vendor can receive voucher payment, replay fails, and donors audit aggregate settlement without seeing PII. This keeps the demo honest while making the real-world use case concrete.
Judge Proof Board
A compact view of what succeeds and what must fail before a reviewer trusts the system.
| Case | Result | Evidence | Layer |
|---|---|---|---|
| Valid private claim | Expected pass | Groth16 proof verifies, claimant signs, nullifier unused, escrow pays once. | ZK circuit + Soroban |
| Replay claim | Expected fail | The same nullifier is already persisted and blocks cash-plus-voucher reuse. | Soroban nullifier set |
| Wrong wallet | Expected fail | Credential leaf binds the claimant address field, so another wallet cannot claim it. | ZK public input binding |
| Expired credential | Expected fail | The claim public input carries expires_at and the contract rejects stale credentials. | Soroban policy |
| Revoked issuer | Expected fail | Issuer key id must be active before the proof can release funds. | Issuer registry |
| Unauthorized vendor | Expected fail | Voucher route only pays active vendor addresses. | Vendor registry |
| Emergency pause | Expected fail | Operators can pause claims during incident response without revealing beneficiary data. | Governance control |
Selective Disclosure Panel
Shown: Campaign funded amount, remaining escrow, number of claims, payout size, contract ids.
Hidden: Beneficiary name, ID, credential secret, Merkle path.
Shown: Nullifier count, approved issuer keys, vendor approval status, settlement hashes.
Hidden: Aid-list membership and private eligibility witness.
Shown: Credential hash, keyed wallet identifier, expiry, delivery mode, issuer key id.
Hidden: Raw identity documents and unencrypted beneficiary credential.
Proof Telemetry
Disbursement 176bc0…d25922 uses issuer key 0096e9…4ddc1c and admin anchor GC7HI6…2OVYVJ.
No-Wallet Judge Mode
Open Judges or Edge page and inspect contract anchors without connecting a wallet.
Use prepared sample credential or admin-issued QR payload from the local demo pack.
Generate the browser proof and inspect proof/public-input telemetry.
Show that invalid routes are rejected by tests, simulation, or replay after first claim.
Threat Simulator
Verifier rejects proof that does not match the committed Merkle root.
Wallet-bound leaf prevents a different Freighter account from claiming.
Nullifier prevents cash and vendor routes from both succeeding.
Admin can revoke vendor and keep direct cash route available.
Issuer key can be revoked and campaign can be rotated.
Escrow health and remaining claim capacity are visible to auditors.
Integrated Advantages
Competitive Readiness Growth
| Project | Focus | Before | After AidShield Edge | AidShield Lead | What changed |
|---|---|---|---|---|---|
| ZK AidShield | Private humanitarian aid claims | 88% | 96% | +8% internal growth | Recommendations are now packaged as visible product surfaces. |
| Tukar | Confidential remittance corridor | 93% | 91% | +5% | AidShield now matches its selective disclosure and negative-proof clarity while keeping a stronger humanitarian workflow. |
| Nebula | Confidential token infrastructure | 92% | 90% | +6% | AidShield now adds comparable proof telemetry and contract evidence, then leads on real field operations. |
| Open Stellar Passport | ZK passport for agent payments | 90% | 88% | +8% | AidShield now mirrors the no-wallet judge path and replay/tamper evidence while staying closer to real-world aid payments. |
| x402 ZK Mesh | Private AI-agent task marketplace | 87% | 84% | +12% | AidShield now turns zero-trust controls into a simpler threat simulator judges can verify quickly. |
| Auspex | Proof-of-solvency and risk attestation | 85% | 82% | +14% | AidShield now borrows reserve-health language while proving a more complete user-facing payout system. |
These percentages are strategic readiness estimates, not official hackathon scores. They measure clarity, real-world fit, ZK load-bearing value, Stellar integration, demoability, and threat posture.