TrustMark - Universal Watermarking for Arbitrary Resolution Images

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

Pure TypeScript implementation of C2PA manifest reading, validation, and creation

Decision-safe evaluation + Streamlit dashboard for AI vs Human vs Post-Edited AI text detection. Generates a reliability report card (Accuracy, Macro F1, ECE, Brier), calibration plots, confidence histograms, and a coverage-vs-performance abstention curve. Recommends an operating threshold for human-review routing.

Sign images and videos with C2PA provenance declaring AI-generated media.

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

🤖 Enterprise multi-agent orchestration platform for autonomous content verification. Built with agentic AI workflows, MCP integration, AgentDB, and advanced deepfake detection. Features agent memory, learning, and collaboration.

A comprehensive media content authenticity toolkit for verifying audio, video, and imagery through AI, watermarking and metadata analysis.

🌍 Awesome C2PA: Multi-language specifications, tools, and resources for content authenticity

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

Combat fake news with cryptographic image verification. Origin Lens analyzes C2PA Content Credentials and EXIF metadata to detect AI-generated content, verify digital signatures, and reveal complete edit history. Privacy-first open source iOS app with on-device verification. (arXiv:2602.03423)

Expert survey on GenAI disinformation threats & reproducible provenance solutions. Accepted at R2CASS @ WWW 2026. Seeking expert participants! (arXiv:2602.02100)

Open protocol proposal for AI-readable, claim-level, verifiable web content using JSON-LD, provenance, signatures, embeddings and trust signals.

Timestamp your WordPress content into the blockchain to empower your content authenticity and increase user trust.

ComfyUI custom node for C2PA image signing - digitally sign your images with cryptographic certificates to prove authenticity and provenance

Official Enterprise Portal for LumaTrace Cloud. Secure C2PA Provenance + Adaptive Spatial Watermarking. Automated API Governance, SOC2/ISO Mapping, and Trust Center for B2B Procurement.

Utilities and standards implementations to oraclise C2PA onchain

C2PA attribute extraction layer powered by TEE. Verifiable content credentials without the original binary.

Verify the authenticity of Signos-sealed photos and videos. Client-side BLAKE3 hashing, Algorand blockchain verification, and human presence proof.

Prove you made it first. SHA-256 hash + Polygon blockchain proof + visual watermark. Certify any file in 30 seconds — your file never leaves your device.