Section: New Results

Formal temporal Smart Contracts

Participants : Frédéric Mallet, Marie-Agnès Peraldi Frati, Robert de Simone.

"Smart Contracts", as a way to define legal ledger evolution in Blockchain environments, can be seen as rule constraints to be satisfied by the set of their participants. Such contracts are often reflecting requirements or guarantees extracted from a legal or financial corpus of rules, while this can be carried to other technical fields of expertise. Our view is that Smart Contracts are often relying on logically timed events, thus welcoming the specification style of our formalisms (such as CCSL). The specialization of multiform logical time constraints to this domain is under study, in collaboration with local academic partners at UCA UMR LEAT and Gredeg, and industrial partners, such as Symag and Renault Software Labs. Local funding was obtained from UCA DS4H EUR Academy 1, which allowed preparation of the ANR project SIM that was accepted in 2019. One goal is to get acceptance from the lawyers while still preserving strong semantics for verification. This builds on our previous expertise [16].