ODGS Protocol v2.0.0

Important

Looking for the Flat JSON Version? If you need the lightweight, non-cryptographic version for AI Chatbots or RAG Copilots (v1.2.x), please visit the Core Repository.

• Install v1: pip install "odgs<2"
• Install v2 (This Repo): pip install odgs

The Sovereign Engine for Semantic Integrity in High-Risk AI Systems

Legal Reference: Compliant with Regulation (EU) 2024/1689 (EU AI Act), Article 10 (Data Governance) and Article 12 (Record-Keeping).

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🚀 Quick Start

The ODGS Protocol is a "Hub & Spoke" toolchain.

• The Hub (Python): The Definition Engine & CLI. Used to define, hash, and sign protocols.
• The Spoke (Node.js): The Runtime Client. Used to enforce protocols in JS/React apps.

1. Installation

For Data Engineers & Architects (The Hub):

pip install odgs

For App Developers (The Spoke):

npm install odgs
# Optional: Install Python CLI for project scaffolding
pip install odgs

2. Usage

Initialize a Sovereign Protocol

odgs init my_protocol
cd my_protocol
# Created: /legislative, /executive, /judiciary

Hash & Bind (The Cryptographic Handshake)

odgs hash
# Output: [INFO] Legislative Plane Hash: sha256:7f9a2b90...

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1. Abstract

The Open Data Governance Standard (ODGS) is a vendor-neutral protocol for the cryptographic enforcement of Semantic Integrity.

Unlike traditional data catalogs that passively observe metadata ("The Phonebook"), ODGS functions as a Runtime Interceptor ("The Border Control"). It binds data payloads to their legal definitions at the millisecond of execution, throwing a ProcessBlockedException (Hard Stop) if the semantic binding is violated.

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2. The 3-Plane Architecture

ODGS enforces the separation of powers required by sovereign data ecosystems.

Plane	Role	Function
🏛️ Legislative	The Definition	Defines WHAT must be governed (KPIs, Relationships, Quality Standards).
⚖️ Judiciary	The Enforcer	Defines HOW to validate it (Logic, Limits, Failure Diagnosis).
⚔️ Executive	The Execution	Defines WHERE it applies (Lifecycle Stage, Database Bindings).

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3. The Sequence of Denial (How it Works)

The ODGS Interceptor performs a Cryptographic Handshake before allowing data consumption.

sequenceDiagram
    participant AI as AI Agent / Application
    participant G as ODGS Guard (Interceptor)
    participant L as Legislative Plane (JSON)
    
    AI->>G: 1. Request Data (Payload + ContextID)
    G->>L: 2. Fetch Immutable Definition & Hash
    L-->>G: 3. Return Hash (e.g., sha256:7f9a...)
    G->>G: 4. VALIDATE BINDING (Hash Match?)
    
    alt SEMANTIC DRIFT DETECTED
        G-->>AI: 5. ⛔ HARD STOP (ProcessBlockedException)
        G->>Log: 6. Write to Audit Log (Art. 12)
    else CLEAN HANDSHAKE
        G-->>AI: 5. 🟢 PASS (Signed Data Object)
    end

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4. Code Examples

Python (The Engine)

from odgs import OdgsInterceptor, ProcessBlockedException

guard = OdgsInterceptor()

try:
    guard.intercept(
        process_urn="urn:odgs:process:O2C_S03", 
        required_integrity_hash="sha256:7f9a2b90cc...", 
        data_context={"container_id": "INVALID 123"}
    )
except ProcessBlockedException as e:
    print(f"⛔ HARD STOP: {e}")
    sys.exit(1)

Node.js (The Client)

import { OdgsInterceptor, ProcessBlockedException } from 'odgs';

const guard = new OdgsInterceptor();

try {
  guard.intercept(
    "urn:odgs:process:O2C_S03", 
    { container_id: "BAD_ID" },
    "sha256:7f9a2b90cc..."
  );
} catch (e) {
  console.error("⛔ JS HARD STOP: Blocked by ODGS Protocol.");
}

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5. Reference Artifacts

Artifact	EU AI Act Alignment
/legislative/standard_metrics.json	Art. 10: Data Governance & Management
/schemas/audit_log_v1.json	Art. 12: Technical Documentation & Logs

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⚠️ Legal Disclaimer

ODGS provides the technical capability for Article 10 & 12 compliance; it does not guarantee legal immunity.

The Organization (User) remains the sole Liability Holder. ODGS is the mechanism (The Lock); the Organization is responsible for the policy (The Key). This software is provided "as is," without warranty of any kind, express or implied.

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License

Apache License 2.0 - see LICENSE for details.

Copyright © 2026 Metric Provenance

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