205 ILCS 730/5
As used in this Act:
"Blockchain" means 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.
"Cryptographic hash" means a mathematical algorithm which performs a one-way conversion of input data into output data of a specified size to verify the integrity of the data.
"Electronic" means relating to technology having electrical, digital, magnetic, wireless, optical, electromagnetic, or similar capabilities.
"Electronic record" means a record created, generated, sent, communicated, received, or stored by electronic means, including a blockchain or a smart contract.
"Record" means information that is inscribed on a tangible medium or that is stored in an electronic or other medium and is retrievable in perceivable form.
"Smart contract" means a contract stored as an electronic record which is verified by the use of a blockchain.
205 ILCS 730/5