3. ProofLayer Overview

3.1 Design Philosophy

ProofLayer is built on several core principles:

• Zero-Trust Architecture: The system assumes no inherent trust in any participant, platform, or authority
• Decentralization: No single entity controls the verification infrastructure
• Cryptographic Guarantees: Security relies on mathematical proofs rather than policies or promises
• Privacy-Preserving: Enables verification without compromising sensitive information
• Open and Interoperable: Works across platforms, jurisdictions, and technological ecosystems

3.2 Key Features

ProofLayer provides a comprehensive solution for digital content verification:

• Content Integrity: Cryptographic proof that content has not been altered since registration
• Source Verification: Confirmation of the identity that issued or registered the content
• Temporal Proof: Tamper-proof timestamping of when content was registered
• Revocation and Updates: Mechanisms for managing document lifecycle
• Selective Disclosure: Ability to verify specific attributes without revealing entire documents
• Cross-Platform Verification: Content can be verified independent of where it appears

3.3 Actors in the Ecosystem

The ProofLayer ecosystem involves several key participants:

• Issuers: Entities that register content (documents, media, etc.) to the system
• Verifiers: Parties that need to confirm the authenticity of content