AcreSeal
Record Integrity Verification
Verify the cryptographic integrity of any AcreSeal record. No login required.
How Verification Works
1
SHA-256 Environmental Hash
Timestamp, GPS, weather, and photo hash are pipe-delimited and SHA-256 hashed. The raw components are stored so you can recompute independently.
2
Append-Only Hash Chain
Each audit entry links to the previous via hash. Any modification breaks the chain. Immutability is enforced at the database trigger level.
3
Photo Integrity
Upload the original photo to recompute its SHA-256 and compare against the stored hash. The EXIF metadata also embeds provenance data.
Zero external services. Zero blockchain. Pure cryptographic integrity. Patent pending.