Towards Compliance of Smart Contracts with the European Union Data Act

The recent proposal of the European Union Data Act adopted by the European Commission has the goal to create fair rules for sharing and using data. An important role in this context is the one played by smart contracts, that are considered as a key technology to enable effective and consensual data sharing. For this purpose, the proposal sets up some requirements for smart contracts, specifically in the context of interoperability with applications that process data. There is a need for scientific work that explains which steps to take so that smart contracts comply with the proposal. This paper aims to begin addressing this gap by considering each one of the requirements and by providing a series of techniques from different areas of computer science to comply with them.