Activity Claim

org.hypercerts.claim.activity

The activity claim is the core hypercert record — the anchor point for all impact tracking. It represents a durable, referenceable statement that a clearly bounded piece of work is planned, ongoing, or completed.

An activity claim defines work using four core dimensions: who performed it, what was done, when it happened, and where it took place. By making work precisely scoped and inspectable, activity claims become stable reference points that others can build on. Contributions, attachments, measurements, evaluations, and funding receipts all reference back to an activity claim.

The activity claim supports rich descriptions with text formatting, cover images, contributor lists with weights and roles, work scope definitions, time ranges, location references, and rights declarations. It's designed to be flexible enough to represent everything from open-source software maintenance to forest stewardship to research projects.

For the full schema, see org.hypercerts.claim.activity in the lexicon repo.