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Notation is a CLI project to add signatures as standard items in the OCI registry ecosystem, and to build a set of simple tooling for signing and verifying these signatures. This should be viewed as similar security to checking git commit signatures, although the signatures are generic and can be used for additional purposes. Notation is an implementation of the Notary Project specifications.

You can find the Notary Project README to learn about the overall Notary Project.


The documentation for installing Notation CLI is available here.

Table of Contents

Quick Start


Notary Project is a CNCF Incubating project. We ❤️ your contribution.

Development and Contributing

Notary Project Community Meeting

  • Mondays 5-6 PM PDT, 4-5 PM PST, 8-9 PM EDT, 7-8 PM EST, 8-9 AM Shanghai
  • Thursdays 9-10 AM PDT, 8-9 AM PST, 12 PM EDT, 11 AM EST, 5 PM UK

Join us at Zoom Dial-in link / Passcode: 77777. Please see the CNCF Calendar for community meeting details. Meeting notes are captured on

Release Management

The Notation release process is defined in


Support for the Notation project is defined in supported releases.

Code of Conduct

This project has adopted the CNCF Code of Conduct. See for further details.


This project is covered under the Apache 2.0 license. You can read the license here.