Proof of Contribution

Each file that is uploaded is checked for authenticity in a trusted execution environment (TEE). Check out the Vana docs for more info on the Vana infrastructure (https://docs.vana.org)

Intra collects biomarkers from the mobile device and stores them on the Vana blockchain encrypted, via our API:

Data Stored from mobile device via Google or Apple health API

For each metric, this data is stored in a JSON file, and all collected data is compressed, encrypted and stored in Intra's Digital Ocean cloud storage.

For Proof of Contribution, Intra spot checks one of the JSON files by re-fetching the data and comparing that the unique id on the JSON file from Oura Ring matches the id in uploaded file. This prevents any invalid data from being uploaded and used.

Intra Proof Of Contribution

Intra has a points leaderboard which ranks users by points and number of uploads, and also ensures duplicate data is not counted in the leaderboard using an HMAC to verify authenticity.