Open-source infrastructure for building trustworthy information verification systems.

Doppelcheck: Core provides fundamental building blocks for creating decentralized verification systems. Instead of being yet another centralized fact-checking service, it establishes protocols and APIs that enable organizations to build and operate independent verification systems while maintaining interoperability.

• Standardized verification protocols and trust metrics
• Flexible model orchestration for local and cloud LLMs
• Distributed evidence store with integrity verification
• Plugin system for custom verification strategies
• Comprehensive API for integration

The infrastructure consists of four main components:

• Trust chain establishment and validation
• Claim extraction interfaces
• Source validation protocols
• Standardized trust metrics

• Support for local and cloud LLM providers
• Access controls and audit capabilities
• Consistent verification standards
• Model output validation

• PostgreSQL-based artifact storage
• Peer-to-peer verification networks
• Data sovereignty guarantees
• Cross-platform verification formats

• OAuth 2.0 authentication
• Plugin distribution system
• Third-party integration capabilities
• Comprehensive input validation

Documentation in progress

• Python 3.8+
• PostgreSQL
• OpenSSL

TODO

from doppelcheck import Verifier, SourceManager

# Initialize verifier with local model
verifier = Verifier(model="local:mistral")

# Create source manager
sources = SourceManager()

# Verify a claim
result = verifier.verify(
    claim="This is a claim to verify",
    sources=sources.search()
)

This project development did not start yet. For now, this repository contains only experiments and proofs of concept.

The roadmap includes:

1. Core verification protocols and trust metrics
2. Model orchestration layer
3. Distributed evidence store
4. API gateway and plugin system
5. Reference implementations
6. Developer documentation

We welcome contributions! Please see our Contributing Guidelines for details.

This project is licensed under the MIT License - see the LICENSE file for details.

TODO