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in-toto: software supply chain integrity framework, README overview

Public record src_01M6V9VBTGQMMV8RK19QQZ6DP9, revision 1. Source and rights labels remain attached. Linked media has not been viewed by opening this page.

# in-toto: software supply chain integrity framework, README overview

- id: src_01M6V9VBTGQMMV8RK19QQZ6DP9
- type: source · status: active · revision: 1
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T20 · tags: none
- updated: 2026-11-07T15:25:49.740Z
- url: https://veyrul.com/sources/src_01M6V9VBTGQMMV8RK19QQZ6DP9

The README presents in-toto as a framework that protects supply chain integrity by verifying steps, authorized functionaries and untampered products.

Source: https://github.com/in-toto/in-toto

What it supplies: The README presents in-toto as a framework that protects supply chain integrity by verifying steps, authorized functionaries and untampered products.

Useful for: - Define a layout of steps and authorized functionaries for a build pipeline.
- Record signed link metadata as each step runs.
- Verify the released product against the layout and links.

First action: - Install with pip install in-toto.
- Create a layout as project owner and sign it.
- Run steps so functionaries produce signed links, then verify.

Prerequisites and limits: The README gives no Python version in the text read and points to its documentation for system dependencies.

- The README is a conceptual overview; the demo and detailed usage are in linked docs not read here.
- Verification depends on trusted functionary keys.

The README text read states no licence, so check the repository licence file. Keys used for signing are yours to manage.

Written from the README text only. Statements are as the README gives them; nothing was installed or run.
Based on opening, install and layout README text only; later sections and code were not read. Nothing was installed or run.

Source inspected: https://raw.githubusercontent.com/in-toto/in-toto/e352b43ad7cb8915d84c36d791aa61346152a0a3/README.md ; 10295 bytes ; sha256 49aa9c9e0a5f9a78e15344651e1b04a7fa944c7e382e6f23bfef6c7bb2a25653 ; 6 exact pinned excerpts in the draft pin map

```json
{
  "archived": null,
  "revision": {
    "ref": "commit e352b43ad7cb8915d84c36d791aa61346152a0a3",
    "pinned": false,
    "source_url": "https://raw.githubusercontent.com/in-toto/in-toto/e352b43ad7cb8915d84c36d791aa61346152a0a3/README.md"
  },
  "checked_at": "2026-11-07T11:09:14.329Z",
  "parent_url": null,
  "usefulness": "- Define a layout of steps and authorized functionaries for a build pipeline.\n- Record signed link metadata as each step runs.\n- Verify the released product against the layout and links.",
  "source_type": "repository",
  "availability": "available",
  "dependencies": [],
  "source_owner": "in-toto project (declared repository namespace)",
  "next_check_at": null,
  "successor_url": null,
  "hardware_notes": null,
  "known_limitations": [
    "The README gives no Python version in the text read and points to its documentation for system dependencies.\n\n- The README is a conceptual overview; the demo and detailed usage are in linked docs not read here.\n- Verification depends on trusted functionary keys.\n\nThe README text read states no licence, so check the repository licence file. Keys used for signing are yours to manage.\n\nWritten from the README text only. Statements are as the README gives them; nothing was installed or run.\nBased on opening, install and layout README text only; later sections and code were not read. Nothing was installed or run.",
    "Rendered README text of the exact archived capture at the pinned commit, read in full by the author; no media viewed or heard; nothing executed or installed.",
    "Source-documented steps; execution not performed. Internal affiliated review is not independent validation."
  ],
  "upstream_updated_at": null
}
```

Rights:
- documentation: license=unknown hosting=permitted redistribution=permitted modification=permitted training=unknown · Only the team-authored original attributed summary and links are covered. Upstream papers, tutorials, code, models, weights and media retain their separate terms; no source-text/media redistribution right is implied.

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