> For the complete documentation index, see [llms.txt](https://breachtrace.gitbook.io/vulnkeeper/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://breachtrace.gitbook.io/vulnkeeper/chapter-e/14-14-source-code-dependency-artifact-and-build-chain-provenance.md).

# 14. Source-code, dependency, artifact & build-chain provenance

## 14.1 Source & artifact provenance

<table><thead><tr><th width="87.5" align="right">Sl. #</th><th>Source Title</th><th>Notes</th></tr></thead><tbody><tr><td align="right">1</td><td><strong>SLSA</strong><br><br><strong><code>Link(s)</code>:</strong> <a href="https://slsa.dev/">slsa.dev</a><br><br><strong><code>Access / Cost</code>:</strong> Free / open standard</td><td><strong><code>Relevance</code>:</strong> Supply-chain Levels for Software Artifacts.<br><br><strong><code>Notes &#x26; POIs</code>:</strong> Useful for evaluating build integrity &#x26; provenance risk.</td></tr><tr><td align="right">2</td><td><strong>Sigstore</strong><br><br><strong><code>Link(s)</code>:</strong> <a href="https://www.sigstore.dev/">www.sigstore.dev</a><br><br><strong><code>Access / Cost</code>:</strong> Free / open-source public infrastructure</td><td><strong><code>Relevance</code>:</strong> Signing &#x26; verification for software artifacts.<br><br><strong><code>Notes &#x26; POIs</code>:</strong> Helps verify artifact integrity &#x26; publisher identity.</td></tr><tr><td align="right">3</td><td><strong>Cosign</strong><br><br><strong><code>Link(s)</code>:</strong> <a href="https://github.com/sigstore/cosign">github.com/sigstore/cosign</a><br><br><strong><code>Access / Cost</code>:</strong> Free / open-source public GitHub repo</td><td><strong><code>Relevance</code>:</strong> Container/artifact signing tool.<br><br><strong><code>Notes &#x26; POIs</code>:</strong> Useful for verifying container image provenance.</td></tr><tr><td align="right">4</td><td><strong>Rekor</strong><br><br><strong><code>Link(s)</code>:</strong> <a href="https://docs.sigstore.dev/logging/overview/">docs.sigstore.dev/logging/overview</a><br><br><strong><code>Access / Cost</code>:</strong> Free public docs / public transparency log</td><td><strong><code>Relevance</code>:</strong> Transparency log for signed artifacts.<br><br><strong><code>Notes &#x26; POIs</code>:</strong> Useful for auditability &#x26; tamper detection.</td></tr><tr><td align="right">5</td><td><strong>in-toto</strong><br><br><strong><code>Link(s)</code>:</strong> <a href="https://in-toto.io/">in-toto.io</a><br><br><strong><code>Access / Cost</code>:</strong> Free / open-source</td><td><strong><code>Relevance</code>:</strong> Supply-chain integrity framework.<br><br><strong><code>Notes &#x26; POIs</code>:</strong> Useful for verifying build steps &#x26; provenance attestations.</td></tr><tr><td align="right">6</td><td><strong>The Update Framework - TUF</strong><br><br><strong><code>Link(s)</code>:</strong> <a href="https://theupdateframework.io/">theupdateframework.io</a><br><br><strong><code>Access / Cost</code>:</strong> Free / open-source</td><td><strong><code>Relevance</code>:</strong> Secure software update framework.<br><br><strong><code>Notes &#x26; POIs</code>:</strong> Useful for update-channel compromise resistance.</td></tr><tr><td align="right">7</td><td><strong>SLSA GitHub generators</strong><br><br><strong><code>Link(s)</code>:</strong> <a href="https://github.com/slsa-framework/slsa-github-generator">github.com/slsa-framework/slsa-github-generator</a><br><br><strong><code>Access / Cost</code>:</strong> Free / open-source public GitHub repo</td><td><strong><code>Relevance</code>:</strong> GitHub-based SLSA provenance generators.<br><br><strong><code>Notes &#x26; POIs</code>:</strong> Useful for CI/CD provenance generation.</td></tr></tbody></table>

## 14.2 Dependency inventory & graphing

<table><thead><tr><th width="90.7265625" align="right">Sl. #</th><th width="281.15234375">Source Title</th><th width="286.78515625">Notes</th></tr></thead><tbody><tr><td align="right">1</td><td>deps.dev</td><td><a href="https://deps.dev/">deps.dev</a></td></tr><tr><td align="right">2</td><td>GUAC</td><td><a href="https://guac.sh/">guac.sh</a></td></tr><tr><td align="right">3</td><td>GUAC GitHub</td><td><a href="https://github.com/guacsec/guac">github.com/guacsec/guac</a></td></tr><tr><td align="right">4</td><td>OpenSSF Scorecard</td><td><a href="https://github.com/ossf/scorecard">github.com/ossf/scorecard</a></td></tr><tr><td align="right">5</td><td>OpenSSF Scorecard API</td><td><a href="https://api.securityscorecards.dev/">api.securityscorecards.dev</a></td></tr><tr><td align="right">6</td><td>Maven Central</td><td><a href="https://central.sonatype.com/">central.sonatype.com</a></td></tr><tr><td align="right">7</td><td>npm registry</td><td><a href="https://registry.npmjs.org/">registry.npmjs.org</a></td></tr><tr><td align="right">8</td><td>PyPI JSON API</td><td><a href="https://docs.pypi.org/api/json/">docs.pypi.org/api/json</a></td></tr><tr><td align="right">9</td><td>crates.io API</td><td><a href="https://crates.io/data-access">crates.io/data-access</a></td></tr><tr><td align="right">10</td><td>Go module proxy</td><td><a href="https://proxy.golang.org/">proxy.golang.org</a></td></tr></tbody></table>

## Discussion

This chapter section keeps the latest table structure, source titles, access/cost fields, relevance notes, & operational notes from the source inventory. Review the table entries as ingestion candidates, then validate source freshness, licensing, authentication requirements, & link-check behavior before production use.

***

#### [Back to Index](/vulnkeeper/index.md)


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://breachtrace.gitbook.io/vulnkeeper/chapter-e/14-14-source-code-dependency-artifact-and-build-chain-provenance.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.