C2PA for live video: Scalable per-segment signing and continuity validation for real-time content provenance

Tech Papers 2026: This paper presents an implementation of the C2PA Per-segment Manifest Box method for live MPEG-DASH and HLS workflows, augmented with a custom Anchor Logic that binds each segment to a stream-specific, signer-specific continuity chain.

Abstract 

The Coalition for Content Provenance and Authenticity (C2PA) defines a robust framework for verifying the origin and integrity of digital media, yet its application to live video streaming presents distinct technical challenges. Real-time signing, distribution and validation of continuous segment streams must...

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