#LightLink has launched its Hummingbird client on Celestia's Mainnet, which aims to improve scalability and reduce transaction fees on the LightLink network. The Hummingbird client is a light client that:

•Publishes L2 data to Celestia's Data Availability (DA) layer
•Validates block headers on the Ethereum blockchain

This integration enables Celestia to act as a modular data availability layer, ensuring transaction reliability and reducing the cost of storing L2 data.

➡️ The LightLink team plans to further integrate Blobstream with Hummingbird, allowing validators to challenge the LightLink L1 contract and verify data availability.

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