Java library that implements the JPEG Universal Metadata Box Format (JUMBF) data model.
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Apr 14, 2026 - Java
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jumbf
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Duale AI's implementation of C2PA text marking (C2PA 2.4 Annex A.8)
unicode text provenance ed25519 watermark cose synthetic-content jumbf c2pa content-credentials ai-act ai-transparency variation-selectors annex-a8
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Sep 3, 2026 - Python
Pure-Go (no cgo) C2PA / Content Credentials library: a fast unverified reader plus full cryptographic validation — COSE signature, certificate chain, hash bindings, RFC 3161 timestamp. Reads JPEG, PNG, WebP, GIF, TIFF/DNG, HEIC, AVIF, SVG, MP4, MOV, AVI, WAV, MP3 and PDF.
svg go golang pdf png mp4 jpeg tiff mp3 wasm gif provenance webp x509 cose jumbf c2pa content-authenticity content-credentials ai-generated-content
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Sep 6, 2026 - Go
Local, zero-dependency toolkit for AI-text and AI-image provenance: inspect hidden characters, document how you wrote something, read C2PA credentials without pretending to verify them.
python unicode accessibility provenance zero-dependency bagit digital-preservation premis academic-integrity homoglyph jumbf c2pa content-authenticity ai-detection content-credentials trojan-source
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Aug 16, 2026 - Python
CLI and MCP server for C2PA / Content Credentials provenance: report what a file claims, or fully verify it — COSE signature, certificate chain, hash bindings, RFC 3161 timestamp. Reads JPEG, PNG, WebP, GIF, TIFF/DNG, HEIC, AVIF, SVG, MP4, MOV, AVI, WAV, MP3 and PDF. Wraps github.com/richardwooding/c2pa.
go cli golang pdf png mp4 jpeg mcp mp3 provenance webp claude cose jumbf c2pa content-authenticity content-credentials model-context-protocol mcp-server ai-generated-content
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Sep 6, 2026 - Go
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