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cheatsheet-tldr/tldr/gh-attestation
2025-12-23 00:21:40 +00:00

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---
syntax: markdown
tags: [tldr, common]
source: https://github.com/tldr-pages/tldr.git
---
# gh attestation
> Download and verify artifact attestations to ensure their integrity and provenance.
> More information: <https://cli.github.com/manual/gh_attestation>.
- Download attestations for a local file associated with a specific repository:
`gh {{[at|attestation]}} download {{path/to/artifact.bin}} {{[-R|--repo]}} {{owner}}/{{repository}}`
- Download attestations for an OCI container image associated with an organization:
`gh {{[at|attestation]}} download oci://{{image_uri}} {{[-o|--owner]}} {{organization_name}}`
- Verify a local artifact online against attestations from a specific repository:
`gh {{[at|attestation]}} verify {{path/to/artifact.bin}} {{[-R|--repo]}} {{owner}}/{{repository}}`
- Verify an artifact, requiring it was signed by a specific reusable workflow for enhanced security:
`gh {{[at|attestation]}} verify {{path/to/artifact.bin}} {{[-o|--owner]}} {{organization_name}} --signer-workflow {{owner}}/{{repository}}/{{path/to/workflow.yml}}`
- Verify an artifact and output the detailed verification results as JSON for use in policy engines:
`gh {{[at|attestation]}} verify {{path/to/artifact.bin}} {{[-o|--owner]}} {{organization_name}} --format json`
- Perform a fully offline verification using a downloaded bundle and a custom trusted root file:
`gh {{[at|attestation]}} verify {{path/to/artifact.bin}} {{[-b|--bundle]}} {{path/to/bundle.jsonl}} --custom-trusted-root {{path/to/trusted_root.jsonl}}`
- Save the trusted root of signing certificates to a file for offline verification:
`gh {{[at|attestation]}} trusted-root > {{path/to/trusted_root.jsonl}}`