China has legalized the use of blockchain-based evidence in courts. Blockchain provides an immutable record of data that can increase accuracy and transparency. China's internet courts will now recognize digitally stored data that has associated digital signatures, hash values, and timestamps through blockchain. This makes the evidence tamper-proof and establishes an accurate chain of custody. Other potential applications of blockchain in the legal field include smart contracts, intellectual property protection, and notary services. However, blockchain is still an emerging technology, and its full role in the legal system remains to be seen.