Constella

A privacy-first data marketplace that won 2nd place at the Stellar Hackathon, combining user data control, licensing, payments, and access proofs on Stellar.

Live Source

Problem

In many data marketplaces, users cannot clearly track who uses their data, under which terms, or for how long.

Solution

Constella is a marketplace prototype centered on data ownership and permissions, tying licensing, payment flow, and access proofs into a Stellar-based product experience.

Outcome

Won 2nd place with Constella at the Stellar Hackathon on June 2-3, 2026.