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Open-source C2PA signing: SignUnder's code is on GitHub

This story is from 2026-10-23. It is preserved in the archive; the latest stories are on the live feed.

SignUnder's code is public on GitHub at AivaStack/signunder , under the Apache-2.0 licence, since 20 October 2026. It is the code the hosted service runs: the API, the C2PA signer, the watermark and fingerprint worker, the rules engine with its rule packs, and the .NET and Python SDKs. SignUnder ma…

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  1. 2026-10-23 06:54 · DEV Community — AI
    Open-source C2PA signing: SignUnder's code is on GitHub

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