Changcoin (CTH) - A Scalable and Secure Layer 1 Blockchain Changcoin (CTH) is a Layer 1 blockchain designed to offer high scalability, security, and decentralization for Web3 applications, decentralized finance (DeFi), and enterprise solutions. Launched on August 1, 2024, Changcoin provides a high-performance infrastructure that enables seamless smart contract deployment and real-world blockchain adoption.