# Edda (edda.refinio.one)

Edda is a decentralized cervical cancer screening companion for patients, doctors, and study centers, with local storage, encrypted peer-to-peer sync, role certificates, and audit trail.

Primary URL: https://edda.refinio.one/

Languages: German, English, French. The page uses the same visible language-switching pattern as heiner.one: the document language changes between de, en, and fr, and localized spans are shown or hidden by CSS.

Theme support: light and dark. The user's preference is stored in localStorage under refinio-theme.

Key points:
- P2P: encrypted sync
- 4+: clinical questionnaires
- Audit: immutable journal
- Patient app: Questionnaires, diary, temperature, and findings stay local and are shared only with authorized contacts.
- Study center: A root of trust assigns roles, invites patients, and reviews study and follow-up flows.
- Audit trail: Roles, questionnaire changes, shares, and exports are documented as immutable entries.
- Local data: The primary copy lives on the device of the person or organization using it.
- Certified roles: Authority is granted through signed role chains, not hidden server lists.
- Exportable: Data can be explicitly exported for care, study analysis, and traceability.

Legal:
- Refinio imprint: https://refinio.net/imprint.html
- Refinio data protection declaration: https://refinio.net/imprint.html
- Contact: REFINIO GmbH, Steiner Str. 6, 91189 Rohr, info@refinio.net