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Marlowe: implementing and analysing financial contracts on blockchain

February/2020, Workshop on Trusted Smart Contracts (Financial Cryptography 2020)

HASKELLSMARTCONTRACT

Marlowe is a DSL for financial contracts. We describe the implementation of Marlowe on the Cardano blockchain, and the Marlowe Playground web-based development and simulation environment.

Contracts in Marlowe can be exhaustively analysed prior to running them, thus providing strong guarantees to participants in the contract. The Marlowe system itself has been formally verified using the Isabelle theorem prover, establishing such properties as the conservation of money.