Content Authenticity Python Packages

trustmark

TrustMark - Universal Watermarking for Arbitrary Resolution Images

c2pa

Python implementation of C2PA: Coalition for Content Provenance and Authenticity.

ai-provenance-tracker

Open-source multimodal AI provenance detection platform with explainable evidence cards, provider consensus, and benchmark-driven quality gates.

c2pie

The world's first c2pa standard implementation that supports PDF-files signing.

rooted-sbr

Open-source, vendor-neutral C2PA Soft Binding Resolution server on Backblaze B2. Recovers stripped provenance for AI image, audio, and video, with a WORM transparency log and an MCP surface.

langchain-chronoverify

Drop-in recipes to give any AI agent image capture-time and provenance verification with ChronoVerify: MCP one-click install, OpenAI/Claude tool defs, LangChain/LlamaIndex/CrewAI/n8n, and REST.