There is a growing interest in running legal contracts on digital systems, at the same time, it is important to understand to what extent software contracts may capture legal content. We then undertake a foundational study of legal contracts and we distill four main features: agreement, permissions, violations and obligations. We therefore design Stipula, a domain specific language that assists lawyers in programming legal contracts through specific patterns. The language is based on a small set of abstractions that correspond to common patterns in legal contracts, and that are amenable to be executed either on centralized or on distributed systems. Stipula comes with a formal semantics and an observational equivalence, that provide for a clear account of the contracts' behaviour. The expressive power of the language is illustrated by a set of examples that correspond to template contracts that are often used in practice.

Pacta sunt servanda: legal contracts in Stipula

Silvia Crafa;
2021

Abstract

There is a growing interest in running legal contracts on digital systems, at the same time, it is important to understand to what extent software contracts may capture legal content. We then undertake a foundational study of legal contracts and we distill four main features: agreement, permissions, violations and obligations. We therefore design Stipula, a domain specific language that assists lawyers in programming legal contracts through specific patterns. The language is based on a small set of abstractions that correspond to common patterns in legal contracts, and that are amenable to be executed either on centralized or on distributed systems. Stipula comes with a formal semantics and an observational equivalence, that provide for a clear account of the contracts' behaviour. The expressive power of the language is illustrated by a set of examples that correspond to template contracts that are often used in practice.
http://arxiv.org/abs/2110.11069v1
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/3456759
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