Watermark Registry
Website: https://watermarkregistry.com
Description: Digital provenance registry for image verification using SHA-512 fingerprints, perceptual matching, and C2PA-aligned metadata.

Key Pages:
- https://watermarkregistry.com/
- https://watermarkregistry.com/blog
- https://watermarkregistry.com/verify/<sha512>

Usage Notes:
- Verification tiers are technical indicators intended to support review.
- The service does not provide legal advice or guaranteed judicial outcomes.