Certo: Open-Source Platform for Issuing and Verifying Digital Badges

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Certo is a newly released open-source platform designed to issue, manage, verify, and exchange digital credentials. It implements Open Badges 3.0 and W3C Verifiable Credentials standards, ensuring credentials are portable, machine-verifiable, and not tied to any single vendor. The platform is built to be self-hosted, API-first, and extensible via a plugin interface. It is already being used in practice by the Schrödinger Hat community for conferences, workshops, and partner events. A public demo is available, and the project is open for community feedback and contributions.

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