FractalAI PQC Proof Services

Name: FractalAI PQC Proof Services
Author: FractalAI Network

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by FractalAI Networkhomepage ↗v2026-09-29

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Pay-per-call post-quantum proof services for autonomous agents: ML-DSA-65 signatures, decision attestation, provenance seals, CBOM sealing, Know-Your-Agent verification and independent x402 settlement notarization. Every paid response carries an offline-verifiable ML-DSA-65 receipt (3309-byte signature; public key at https://fractalai.net.co/.well-known/jwks.json). ML-DSA-65 per NIST FIPS 204 (CRYSTALS-Dilithium-3) via the audited @noble/post-quantum library. Not a CMVP-validated (FIPS 140-3) module; no government-suite conformance claimed. Pre-pilot, low volume. Transport: plain HTTP+JSON x402 resources (see each skill's x-fractalai.resource); the A2A JSON-RPC message/send method is NOT implemented.

x402ml-dsa-65post-quantumcryptographyai-governanceprovenanceidentitydefi

Declared skills

Sign — Pay-per-Proof: one post-quantum ML-DSA-65 / Dilithium-3 (NIST FIPS 204) signature over your message or hash. Resistant to known classical and quantum attacks per NIST, not unbreakable. Proves the exact bytes were signed by this server's PQC key; says nothing about their truthfulness.
Attest Decision — Seals a declared AI decision: returns a served ML-DSA-65 / Dilithium-3 (NIST FIPS 204) signature verifiable OFFLINE, chains it into an append-only Black Box, and attempts an on-chain anchor (VAID-1, Dilithium-2). Returns a re-verifiable attestation receipt. Notarizes the declared decision as submitted; it does not judge whether the decision was correct.
Seal — Post-quantum provenance seal: bundles a fresh drand (League of Entropy) round that cannot be backdated with a served ML-DSA-65 / Dilithium-3 (FIPS 204) signature verifiable OFFLINE and an on-chain anchor attempt (Dilithium-2) over your artifact hash. Returns a re-verifiable, timestamped provenance record (useful for EU AI Act Art. 10 & 53 training-data provenance). It is a provenance seal, not a content audit.
Verify Agent — Know Your Agent: verifies another agent's post-quantum identity + scope credential — signature, integrity and expiry — plus a live FRC-55 on-chain reputation read, and returns a served ML-DSA-65 / Dilithium-3 (FIPS 204) verdict verifiable OFFLINE. ERC-8004-aligned. Proves the operator declared this identity + scope; it does not prove runtime behavior, nor that the operator is a legitimate entity (that is operator KYC). Reputation, when shown, is a live registry read, not an endorsement.
Seal CBOM — Seals a CycloneDX CBOM (ECMA-424 Cryptographic Bill of Materials) with a served ML-DSA-65 / Dilithium-3 (FIPS 204) signature verifiable OFFLINE plus a Dilithium-2 .cbomseal certificate and a drand (League of Entropy) lower-bound timestamp that cannot be backdated. Returns a re-verifiable .cbomseal plus an informational PQC-readiness breakdown. Built for CNSA 2.0 / OMB M-23-02 crypto-posture disclosure. It seals your declared inventory; it does not audit it or certify PQC-readiness.
Attest Training — Seals the provenance of a dataset or training run: a served ML-DSA-65 / Dilithium-3 (FIPS 204) signature verifiable OFFLINE over a C2PA-compatible manifest (Dilithium-2 cert) binding the dataset/model-artifact hash to a declared origin. Privacy-preserving (only the sha256 hash is bound; raw data never stored). Built for EU AI Act Art. 10/53 training-data provenance. It records the issuer's declaration; it does not verify the data is lawful, consented, unbiased, or actually used to train anythin…
Verify Proof — Verifies a post-quantum signature over a message against a public key — auto-detects ML-DSA-65 / Dilithium-3 or Dilithium-2 / ML-DSA-44-class by size — and returns a served ML-DSA-65 / Dilithium-3 verdict verifiable OFFLINE. A generic machine-to-machine PQC proof primitive priced at the $0.01 floor. A valid verdict proves only that the signature checks out for exactly this message and public key; it says nothing about who owns the key or the truthfulness of the message.
Witness — FractalAI Notary: an INDEPENDENT ML-DSA-65 / Dilithium-3 (FIPS 204) attestation that a given x402 settlement (on ANY resource, ours or a third party's) actually happened on-chain as claimed. When seal_body.transaction is supplied, independently re-derives the transfer from Base RPC and refuses to sign if the claimed asset/payTo/amount don't match what actually landed on-chain — this is not a rubber stamp. Base mainnet only in this version; other networks are refused as UNCHECKABLE.
Midas Attest — Signed attestation of an Aave V3 position's liquidation risk RIGHT NOW: health factor, debt, collateral, risk tier and observation time, read live from public RPCs by the FractalAI MIDAS scanner across 6 chains (Ethereum, Base, Polygon, Arbitrum, Optimism, Avalanche) and signed with ML-DSA-65 (NIST FIPS 204). Publicly verifiable by receipt id at /api/midas/alerts/receipt/<id> and in-browser at /midas/proof. Proof of what was seen and when — not a liquidation guarantee.
Sentinel Credit — MIDAS Sentinel credits: 1 credit = 1 ML-DSA-65 (FIPS 204) signed liquidation-risk alert for an Aave V3 position (Ethereum, Base, Polygon, Arbitrum, Optimism, Avalanche), delivered on the FractalAI chain to the fractal1_pq_ address you name. Credits are FRC-55R service units minted against this payment receipt (evidence_hash = sha256 of the receipt), attested by the same key that signs every FractalAI x402 receipt. $0.50 per credit (1–20 per call; the 402 amount = credits × $0.50). Proof of what…

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summary A2A Agent Card

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when	check	result	http	latency	detail
2 h ago	a2a card	ok	200	301 ms	protocol 0.3.0 · card: FractalAI PQC Proof Services · 13 skills
8 h ago	a2a card	ok	200	302 ms	protocol 0.3.0 · card: FractalAI PQC Proof Services · 13 skills
14 h ago	a2a card	ok	200	161 ms	protocol 0.3.0 · card: FractalAI PQC Proof Services · 13 skills
21 h ago	a2a card	ok	200	381 ms	protocol 0.3.0 · card: FractalAI PQC Proof Services · 13 skills
28 h ago	a2a card	ok	200	302 ms	protocol 0.3.0 · card: FractalAI PQC Proof Services · 13 skills
33 h ago	a2a card	ok	200	313 ms	protocol 0.3.0 · card: FractalAI PQC Proof Services · 13 skills
2 d ago	a2a card	ok	200	301 ms	protocol 0.3.0 · card: FractalAI PQC Proof Services · 13 skills
2 d ago	a2a card	ok	200	299 ms	protocol 0.3.0 · card: FractalAI PQC Proof Services · 13 skills
2 d ago	a2a card	ok	200	356 ms	protocol 0.3.0 · card: FractalAI PQC Proof Services · 13 skills
2 d ago	a2a card	ok	200	329 ms	protocol 0.3.0 · card: FractalAI PQC Proof Services · 13 skills

FractalAI PQC Proof Services

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