Japan’s Astar Network has become the first blockchain to implement the SuperchainERC20 standard for its ASTR token, in a move aimed at addressing longstanding interoperability issues between networks like Ethereum and Polkadot.
SuperchainERC20 enables interoperability across data-ct-non-breakable=”null” href=”https://cointelegraph.com/news/superchain-ethereum-l2-transactions-2025-optimsm” title=”null”>Optimism’s Superchain collective, which consists of dozens of projects working to scale Ethereum.
ASTR can now move between Astar’s Polkadot-based layer-1, Sony’s Soneium and eventually all OP Superchain networks, the company told Cointelegraph.
The company said ASTR…

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