Image Provenance Verification for Authentic and Edited Content

The verification system segments the authentication process into multiple independent components: hash value verification for integrity checking, metadata verification for editing history validation, and digital signature verification for source authentication. Each component handles a specific aspect of authenticity verification, allowing the system to distinguish between valid edits and invalid tampering by evaluating multiple segments together rather than relying on a single verification method

The system employs a composite verification approach by combining multiple verification mechanisms (hash values, metadata, digital signatures) into a unified authentication framework. This composite structure allows the system to leverage the strengths of each individual method while compensating for their weaknesses, enabling reliable distinction between legitimate editing and malicious tampering

The system performs preliminary authentication by verifying the digital signature and hash value of the original image before any editing occurs. This preliminary verification establishes a trusted baseline that preserves information about the original image's authenticity, allowing subsequent metadata to be added without compromising the ability to verify the original image's legitimacy

The verification system implements a nested structure where multiple layers of verification information are embedded within each other: hash values are nested within the image data, metadata containing editing history is nested within the file structure, and digital signatures are nested within the metadata. This nested organization allows verification of original image authenticity to occur at multiple levels simultaneously, preserving both modification validity information and original image verification capability