Prove what your AI did. Cryptographically.

Signed • Timestamped • Post-Quantum Ready • Tamper-Proof

AI agents make critical decisions autonomously: trades, diagnoses, approvals, actions.

But when something goes wrong:

• Who did what?
• Can it be proven?
• Is the log tamper-proof?
• Is it quantum-resistant?

Most systems rely on editable logs. Trust is not cryptographic.

❌ Traditional Logs
   ├─ Modifiable after the fact
   ├─ No cryptographic proof
   ├─ No legal standing
   └─ Vulnerable to quantum attacks

PiQrypt creates cryptographic audit trails for autonomous systems.

Every decision is:

✅ Cryptographically signed (Ed25519 + Dilithium3)
✅ Hash-chained (tamper-proof, blockchain-like)
✅ Timestamped (RFC 3161 independent proof)
✅ Post-quantum secured (NIST FIPS 204)
✅ Court-admissible (legal standing)

No blockchain. No token. Just verifiable cryptography.

✅ PiQrypt Audit Trail
   ├─ Cryptographically signed (Ed25519/Dilithium3)
   ├─ Immutable hash chains (tamper-proof)
   ├─ Legal standing (court-admissible)
   └─ Quantum-resistant (50+ year proof)

PiQrypt is the reference implementation of AISS and its Proof of Continuity Protocol (PCP).

It provides:

• Cryptographic profiles (Classical and Hybrid Post-Quantum)
• Deterministic event validation
• Canonical history enforcement
• Audit-ready certification export

import piqrypt as aiss

# Sign every decision
event = aiss.stamp_event(
    private_key,
    agent_id,
    payload={"action": "buy", "symbol": "AAPL", "quantity": 100}
)

# Tamper-proof storage
aiss.store_event(event)

# Export for auditors
aiss.export_audit_chain("audit.json", certified=True)

<10ms per event. Local-first. No network dependency.

Compliance: SOC2 • ISO 27001 • HIPAA • GDPR • SEC/FINRA • NIST PQC

Need one-time proof without integration?

Upload your log → Pay → Get certified bundle instantly.

🔹 Simple €9 ✅ Cryptographic signature ✅ Hash verification ✅ Public badge ✅ Export bundle

🔸 Timestamp €29 ✅ Everything in Simple ✅ RFC 3161 TSA timestamp ✅ Independent time proof ✅ GDPR/HIPAA ready

🔶 Post-Quantum €99 ✅ Everything in Timestamp ✅ Dilithium3 signature ✅ Encrypted archive ✅ 50+ year proof

How it works:

1. Export your audit trail:
   piqrypt export audit.json

2. Copy the JSON content:
   cat audit.json  # Copy output (Ctrl+A, Ctrl+C)

3. Click certification tier below

4. Stripe checkout opens → Paste JSON in "Audit Data" field

5. Complete payment

6. Receive certified bundle via email (< 5 minutes)

7. Verify: piqrypt certify-verify bundle.piqrypt-certified

That's it! No upload page, no complications. Just copy/paste → pay → receive.

Perfect for:

• One-time audits
• Proof of concept
• Legal disputes
• Compliance checks

Want full control? Install PiQrypt and integrate into your agent.

pip install piqrypt

Requirements: Python 3.8+

import piqrypt as aiss

# 1. Create identity
private_key, public_key = aiss.generate_keypair()
agent_id = aiss.derive_agent_id(public_key)

# 2. Sign decision
event = aiss.stamp_event(
    private_key,
    agent_id,
    payload={
        "event_type": "trade_decision",
        "action": "buy",
        "symbol": "AAPL",
        "quantity": 100,
        "confidence": 0.95
    }
)

# 3. Store (tamper-proof)
aiss.store_event(event)

# 4. Export for audit
aiss.export_audit_chain("audit-q1-2026.json")

CLI:

piqrypt identity create my-agent.json
piqrypt stamp my-agent.json --payload '{"action": "test"}'
piqrypt export audit.json --certified
piqrypt verify audit.json

Full docs: Quick Start Guide

Perfect for:

• Indie developers
• Prototypes
• Testing PiQrypt

Includes:

• 3 agents max
• Ed25519 signatures
• JSON storage
• 50 exports/month
• 1 Simple certification/month FREE 🔥

pip install piqrypt
# Free tier active immediately

⏰ Limited-time adoption pricing

Perfect for startups, trading bots, automation workflows.

Includes:

• ✅ 50 (vs 3 Free)
• ✅ Ed25519 + Dilithium3 (post-quantum)
• ✅ AES-256-GCM encrypted storage
• ✅ Unlimited exports
• ✅ 10 Simple certifications/month FREE
• ✅ TSA timestamps (RFC 3161)
• ✅ A2A handshake (agent-to-agent)
• ✅ Email support (48h)

⏰ Lock in €290/year before Standard pricing. Limited slots.

Full premium package

Perfect for growing startups, fintech, compliance-critical systems.

Includes:

• ✅ Everything in Early-Bird Pro
• ✅ 50 certifications/month FREE (vs 10)
• ✅ Trust scoring dashboard (I/V/D/F) [v1.6]
• ✅ Visual badges (custom branding)
• ✅ Priority support (24h vs 48h)

Infrastructure de confiance

Perfect for banks, healthcare, government, autonomous vehicles.

Includes:

• ✅ Everything in Standard Pro
• ✅ HSM integration (hardware security)
• ✅ REST API + GraphQL
• ✅ Multi-tenant deployment
• ✅ SSO (SAML, OAuth)
• ✅ SLA 99.9% uptime
• ✅ Dedicated support (24h, Slack, Phone)
• ✅ On-premise option
• ✅ SOC2/ISO 27001 audit support

Pricing starts at €10,000/year.

OSS Exemption: Open-source projects get Pro for free. [Apply here](mailto:piqrypt@gmail.com?subject=OSS License Request).

AISS → Identity Standard PCP → Continuity Enforcement PiQrypt → Reference Implementation

┌─────────────────────────────────────────────────────────────┐
│            Your AI Agent / Application                      │
│  (Trading Bot, HR AI, Autonomous Vehicle, etc.)             │
└──────────────────────────┬──────────────────────────────────┘
                           ↓
                   Makes Decision
                           ↓
┌─────────────────────────────────────────────────────────────┐
│                 🔐 PIQRYPT LAYER                            │
│  • Canonicalize (RFC 8785)                                  │
│  • Sign (Ed25519 / Dilithium3)                              │
│  • Timestamp (RFC 3161 TSA)                                 │
│  • Chain (SHA-256 hash links)                               │
│  • Store (encrypted if Pro)                                 │
└──────────────────────────┬──────────────────────────────────┘
                           ↓
              Immutable Audit Trail
                           ↓
┌─────────────────────────────────────────────────────────────┐
│              Export for Auditors/Regulators                 │
│  • Certified bundles (.piqrypt-certified)                   │
│  • Court-admissible proof                                   │
│  • Compliance reports (SOC2, HIPAA, SEC)                    │
└─────────────────────────────────────────────────────────────┘

PiQrypt secures decision continuity — it doesn't replace your agent.

PiQrypt is the reference implementation of AISS v1.1 (Agent Identity & Signature Standard).

What is AISS?

A vendor-neutral, open standard (MIT) for cryptographic audit trails of AI agents.

Repositories:

• AISS Spec: github.com/piqrypt/aiss-spec
• PiQrypt Core: github.com/piqrypt/piqrypt
• MCP Server: github.com/piqrypt/piqrypt-mcp-server

Think: TLS (standard) vs OpenSSL (implementation)

✅ Integrity: Modification breaks chain
✅ Non-repudiation: Agent can't deny actions
✅ Authenticity: Signatures prove authorship
✅ Freshness: Timestamps prove when
✅ Post-quantum: Dilithium3 (50+ years)

# Sign every trade
event = aiss.stamp_event(priv, agent_id, {
    "event_type": "trade_executed",
    "symbol": "AAPL",
    "quantity": 100,
    "price": 150.25
})

Result: SEC Rule 17a-4 compliant audit trail.

# Sign diagnosis
event = aiss.stamp_event(priv, agent_id, {
    "event_type": "diagnosis",
    "condition": "pneumonia",
    "confidence": 0.94,
    "patient_id_hash": sha256(patient_id)  # HIPAA compliant
})

Result: Court-admissible proof of AI recommendation.

# Sign hiring decision
event = aiss.stamp_event(priv, agent_id, {
    "event_type": "candidate_evaluation",
    "decision": "accept",
    "reasons": ["Relevant experience", "Strong Python"],
    "protected_attributes_used": False  # EEOC
})

Result: GDPR-compliant audit with explanations.

• Quick Start: QUICK-START.md
• AISS Spec: docs/RFC.md
• A2A Handshake: docs/A2A_GUIDE.md
• OpenClaw: docs/OPENCLAW_INTEGRATION.md
• CLI Reference: piqrypt --help

• A2A Handshake
• AISS v1.1 separation
• MCP Server
• Pay-per certification

• Trust Scoring (I/V/D/F)
• Visual dashboard
• A2A Network (DHT)

• Witness network
• HSM integration
• Blockchain anchoring

• Email: piqrypt@gmail.com
• Issues: GitHub Issues
• Pro Support: 48h response (Pro tier)
• Enterprise: 24h response + Slack

Core: MIT License — see LICENSE

e-Soleau: DSO2026006483 (INPI, 19/02/2026)

pip install piqrypt