Identifiers are the core elements of the Metalayer protocol, with each blockchain network having a unique number, ensuring the accuracy and security of cross-chain operations. As a blogger, I find this design particularly clever; it's like giving each chain an 'identity card,' avoiding confusion and erroneous routing. Simply put, the chain ID is a numeric identifier used to specify the target domain of a message. For example, when sending from chain A to chain B, B's ID must be explicitly stated so that the system can correctly handle write or read operations. BONUS ♥️🎁🏆

What impact does this have on the ERA token? As a pillar of the Caldera ecosystem, ERA relies on these unique identifiers for seamless circulation. Users holding ERA can easily transfer between different chains because Metalayer automatically routes messages based on chain IDs, ensuring that funds are securely placed. I recently studied a case: if you want to bridge ERA from the Ethereum mainnet to the Arbitrum rollup, you just need to specify the target chain ID in your intent, and the system will handle everything, including gas payments and finality waiting. This is much simpler than manual configuration and reduces the risk of errors.

Uniqueness is also reflected in ecological expansion. Caldera supports custom rollups, with each new chain assigned a unique ID, promoting the growth of modular blockchains. Developers can integrate these IDs using TypeScript SDK to build multi-chain supported dApps, while ERA's native properties make it an ideal gas token. Overall, this mechanism enhances ERA's cross-chain utility, making it stand out in the competitive Layer 2 market

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