We have previously written about how U.S. states have, one by one, passed legislation relating to blockchain.  As we enter 2020, Illinois has become the latest state to do so.

The Blockchain Technology Act took effect on January 1, 2020.  Under the Act, “blockchain” is defined as “an electronic record created by the use of a decentralized method by multiple parties to verify and store a digital record of transactions which is secured by the use of a cryptographic hash of previous transaction information.”

The Act provides legal recognition to smart contracts and blockchain-based records and signatures. Specifically, according to the statute’s sponsor, it:

  • Provides that evidence of a smart contract or blockchain-based record or signature must not be excluded in a proceeding solely because it was created or stored on a blockchain
  • Provides certain limitations for blockchain transactions and smart contracts
  • Prohibits local governments from regulating or taxing blockchain technology or smart contracts
  • Defines key terms

The statute does not mandate the use of blockchain technology or smart contracts, nor direct state or local governments to adopt blockchain technology.  Instead, it simply provides regulatory certainty for blockchain developers and adopters that blockchain-based records, signatures, and contracts will not be denied legal effect because of the technology used.

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David Zaslowsky is partner in the Litigation Department of Baker McKenzie's New York office. He helps companies solve complex commercial disputes in arbitration and litigation, especially those involving cross-border issues and Section 1782 discovery. David has a degree in computer science and, as a result, has worked on numerous technical-related disputes, including, most recently, those involving blockchain and artificial intelligence. In April 2025, Attorney Intel named David one of the top 25 blockchain lawyers in the country. He is the editor of the Firm's blockchain blog and co-editor of the firm's International Litigation & Arbitration Newsletter. David has been included for a number of years in the Chambers USA Guide and Chambers Global Guide for his expertise in international arbitration. He also sits as an arbitrator and is on the roster of arbitrators for a number of arbitral institutions. David sits on the Board and chairs the governance committee of the New York International Arbitration Center, and is a founding member of the International Arbitration Club of New York. For over 35 years, he has written and spoken often on the subjects of arbitration and international litigation.