SQD: The Web3 Data Layer
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About This Episode
In this episode of DevNTell, Narb interviews Dimitri Zhelezov (Dima), the co-founder of SQD (formerly Subsquid). SQD is a decentralized data layer for Web3, designed to provide fast, scalable, and cost-effective access to raw blockchain data. Dima discusses the technical challenges associated with existing blockchain data access methods like RPC nodes and the motivation behind building a dedicated data layer. He explains how the SQD Network functions as a decentralized 'data ocean' that aggregates and stores petabytes of data from various blockchains. The session covers SQD's alignment with core Web3 philosophies—such as permissionless access, verifiable data, and grassroots liveness—and provides a preview of how developers can run their own SQD Portals to query data locally using cryptographic validation. Dima also shares SQD's ambitious roadmap for 2024 and 2025, which includes ZK-validated data and on-chain SQL querying.
Key Takeaways
SQD addresses the 'data bottleneck' in Web3 by providing a decentralized layer for accessing and indexing on-chain data more efficiently than traditional RPC methods.
The network utilizes lightweight 'portals' and cryptographic validation to ensure data integrity without requiring users to trust centralized providers or run full nodes.
SQD follows a modular design, separating data storage and indexing to allow for horizontal scalability and cross-chain support (EVM, Solana, and more).
Participation in the network involves locking SQD tokens for throughput as a consumer, or bonding tokens as a node operator to earn rewards.
The long-term roadmap aims for an 'indexing endgame' with fully decentralized, ZK-validated, and SQL-powered search engines for all Web3 data.
Featured Guest
Dimitri Zhelezov
Co-founder of SQD
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