Authentication
Digital Seal
A cryptographic certificate that binds media content to its creation metadata, proving authenticity.
What is a Digital Seal?
A digital seal is a tamper-evident certificate that cryptographically binds a media file to its creation context — including timestamp, GPS location, device information, and content hash.
How Seals Work
When you seal media with Danaya, the system computes a SHA-256 hash of the content, records the creation timestamp, captures GPS coordinates, and stores device metadata. This bundle is cryptographically signed and stored.
Verification
Anyone can verify a sealed file by computing its hash and comparing it against the stored seal. If the hashes match, the file is proven authentic and unmodified.
Related Terms
Cryptographic Hash
A fixed-size digital fingerprint produced by a hash function that uniquely identifies data.
Metadata
Data about data — information embedded in files describing creation time, device, location, and other properties.
Timestamp
A recorded date and time indicating when a digital event occurred or when data was created.