ZK Evidence Oracle

BaFin can verify compliance without seeing sensitive operational data. Threshold proofs, merkle trees, W3C verifiable credentials, and selective disclosure — privacy by design.

14
MCP Tools
3
Proof Types
104
Merkle Leaves
∞
Privacy
Threshold ProofsMerkle TreesW3C VCsSelective DisclosurePolygon + XRPLAll Free
MCP Endpoint: https://tooloracle.io/zk/mcp
Health: https://tooloracle.io/zk/health
Transport: StreamableHTTP + SSE
Crypto: SHA-256 commitments, HMAC-SHA256 signatures, Merkle trees
On-chain: Polygon attestation + XRPL anchoring
Standard: W3C Verifiable Credentials v1

Tools (14)

threshold_proof
Prove 'score ≥ 80%' without revealing exact score.
ZK Proof
obligation_proof
Prove obligation fulfilled without showing evidence.
ZK Proof
selective_disclosure
Disclose specific fields (score, grade), hash the rest.
Privacy
create_commitment
SHA-256 commitment to compliance state.
Commitment
verify_commitment
Verify commitment against current state.
Verify
build_merkle_tree
Build merkle tree from all active evidence artefacts.
Merkle
verify_merkle_proof
Verify single evidence in merkle tree.
Verify
create_vc
W3C Verifiable Credential for DORA compliance.
W3C VC
verify_vc
Verify credential integrity.
Verify
privacy_report
Privacy-preserving report: hashes instead of raw data.
Report
audit_proof
Auditor-ready proof package: commitment + merkle + credential.
Full Package
anchor_status
On-chain anchor status: Polygon + XRPL.
On-Chain
health_check
Server status + crypto info.
System
ping
Connectivity test.
System

Privacy guarantee

threshold_proof: Proves "score ≥ 80%" — the exact score is never revealed.
obligation_proof: Proves "DORA-TPR-03 is fulfilled" — check details and evidence stay hidden.
selective_disclosure: You choose which fields to reveal. Everything else is SHA-256 hashed.
audit_proof: Complete package for auditors: commitment hash + merkle root (104 leaves) + W3C credential (grade only).

Result: Auditors see "Entity is Grade B compliant" — not which specific checks are yellow, what findings exist, or what evidence was collected. Verifiable without visibility.