Blockchain infrastructure provider RISC Zero has launched Blobstream Zero, a zkVM-based Blobstream bridge designed to connect Celestia's data availability layer with various blockchain ecosystems. Blobstream is Celestia's solution that enables rollups to leverage the Celestia light client side for data availability sampling. Blobstream Zero introduces the ability to validate Celestia DA using zero-knowledge proofs. The integration allows convolutional and applications to generate proofs more efficiently across chains. Blobstream Zero also introduces the ZK coprocessor, enabling dapps on Ethereum, Optimism, and Solana to run data-intensive ZK programs without sacrificing composability.