Equal-Term Matching for Tokenized Healthcare Data Rights under Smart Contract Restrictions
Main article
Abstract
Tokenized healthcare data rights can make consent, purpose limitation, expiry, and revocation auditable, but they also create a difficult exchange problem. A participant that releases a restricted data right should not receive an unrestricted right simply because a matching algorithm finds a welfare-improving cycle. This article develops an equal-term matching framework for tokenized healthcare data rights under smart-contract restrictions. Each contract combines a data-right token with a restriction term, and the equal-term property requires the received term to match the term under which the participant's endowed right is released. We adapt a dual top-trading-cycle mechanism to the healthcare setting and propose a smart-contract architecture that keeps clinical data off-chain while recording verifiable consent, term, and settlement events. A 500-market simulation shows that equal-term dual matching preserves most welfare gains from exchange while eliminating term-mismatch violations, supporting a practical balance between allocative efficiency and patient-centered rights consistency.
