Witness

Pluggable framework that automates, normalizes, and verifies software artifact provenance.

Pluginfreeglobal

Witness is a pluggable framework for software supply chain risk management, originating at TestifySec and now maintained as part of the CNCF in-toto ecosystem. It automates the collection of attestations during a build pipeline, normalizes that provenance data, and verifies it against policy so teams can prove what went into a software artifact and catch tampering.

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Full match profile

Behind the summary, Matchbox keeps a richer profile of Witness - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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