Chainlink’s Cross-Chain Token (CCT) standard is now compatible with Optimism’s SuperchainERC20 token standard, enabling seamless cross-chain functionality within Optimism’s ecosystem. This integration is exemplified by Japan’s Astar Network, whose ASTR token became the first to implement the combined standards on the Layer-2 network Soneium, built on the OP Stack.
By adopting this interoperability, ASTR can transfer securely across various networks within Optimism’s Superchain collective, including connectivity between Astar’s Polkadot-based layer-1 and Ethereum-compatible networks. Chainlink’s CCIP protocol serves as the technological backbone enabling these native cross-chain token transfers without relying on vulnerable bridges or third-party intermediaries.
This milestone not only demonstrates the practical real-world use of cross-chain token standards but also aligns with Chainlink Labs’ broader vision. Chainlink recently joined the Global Synchronizer Foundation to develop institutional-grade interoperable blockchain infrastructure. The company’s technology has already secured partnerships with institutions like UBS, MAS, and SBI for tokenizing traditional assets and was even utilized in a pilot for Hong Kong’s CBDC involving major firms such as Visa and Fidelity International.
The advancement of interoperability through Chainlink and Optimism’s collaboration provides a more scalable, secure, and practical framework for DeFi growth across multiple blockchain ecosystems. Currently, ASTR trades below 3 cents with a market cap of approximately $226 million, while Chainlink’s LINK token has recently seen positive price movement amid these developments.