Chainlink hits Ethereum layer 2 Arbitrum for cross-chain DApp development

Blockchain oracle network Chainlink has tapped into Ethereum (ETH) layer 2 scaling protocol Arbitrum to drive cross-chain decentralized application development.

The two protocols announced the mainnet launch of the Chainlink Cross-Chain Interoperability Protocol (CCIP) on Arbitrum One on Sept .21, giving developers access to Chainlinkโ€™s solution that taps into Arbitrumโ€™s high-throughput, low cost scaling.

The combination of CCIP and Arbitrum Oneโ€™s ecosystem aims to unlock a myriad of use cases, including cross-chain tokenization and collateralization, blockchain gaming, data storage and computation.

Chainlink Labs chief business officer Johann Eid commented on the partnership, highlighting Arbitrumโ€™s role in offloading transaction congestion from Ethereumโ€™s base layer and providing a base to build DApps.

โ€œCCIP now gives these users access to a highly secure and easy-to-use interoperability protocol built on Chainlink’s time-tested infrastructure, powering cross-chain smart contracts in a way that will open up new avenues of growth, accessibility, and innovation.โ€

The integration will marry Arbitrumโ€™s optimistic rollup technology that currently commands around 60% of total value locked in the wider Ethereum layer two ecosystem. Arbitrum facilitates fast and low fee transactions that are batched off-chain and then submitted to Ethereumโ€™s base layer.

The optimistic rollup is assumed to be valid until proven otherwise by validators of the network.

Meanwhile CCIP allows developers to build cross-chain DApps that use arbitrary messaging and simplified token transfers. This taps into Chainlinkโ€™s decentralized oracle network that enables smart contracts to securely access off-chain data sources, APIs, and payment systems.

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The protocol allows smart contracts to interact with real-world data and events, making it possible for them to be triggered by data from external sources.

Another prominent Ethereum scaling technology firm in StarkWare previously tapped into Chainlinkโ€™s oracle services. As Cointelegraph previously reported, StarkWareโ€™s zero-knowledge proof rollup protocol StarkNet integrated Chainlinkโ€™s data and price feeds for its ecosystem in February 2023.

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