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- W2918671138 abstract "We propose a way to reconcile the apparent contradiction between the immutability of idealized smart contracts and the real-world need to update contracts to fix bugs and oversights. Our proposal is to raise the contract’s level of abstraction to guarantee a specification $$varphi $$ instead of a particular implementation of that specification. A combination of proof-carrying code and proof-aware consensus allows contract implementations to be updated as needed, but so as to guarantee that $$varphi $$ cannot be violated by any future upgrade. We propose proof-carrying smart contracts (PCSCs), aiming to put formal correctness proofs of smart contracts on the chain. Proofs of correctness for a contract can be checked by validators, who can enforce the restriction that no update can violate $$varphi $$ . We discuss some architectural and formal challenges, and include an example of how our approach could address the well-known vulnerabilities in the ERC20 token standard." @default.
- W2918671138 created "2019-03-11" @default.
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- W2918671138 date "2019-01-01" @default.
- W2918671138 modified "2023-10-02" @default.
- W2918671138 title "Proof-Carrying Smart Contracts" @default.
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- W2918671138 doi "https://doi.org/10.1007/978-3-662-58820-8_22" @default.
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