LIVRE OS · Core Service Layer

1. Purpose & Scope

The Proof Engine enables privacy-preserving verification of user claims using:

• Garbled Circuits (GC)
• Multi-Party Computation (MPC)
• Optional ZK-friendly flows (future)

Its main goal is to allow institutions to verify facts about a user without ever learning raw data, ensuring total sovereignty and compliance with GDPR and modern privacy laws.

2. System Requirements

• Must consume Proof Descriptors created by the Solivre Kernel
• Must run deterministic circuits with a known version
• Must expose only:
  • VALID / INVALID
  • proofHash
  • timestamp
• Must support ephemeral keys and single-use proofs
• Must run computations across LivreNodes

3. High-Level Flow

1. Institution creates Proof Request

→ Via Layer 4 (LivreKit/API)

2. Solivre Kernel generates Proof Descriptor

→ Claim references

→ Ephemeral key

→ Circuit version