Reading on‑chain data is trivial; querying it efficiently at scale is not. The Graph built a decentralised indexing protocol that turns raw blockchain data into composable APIs. Subgraphs now power thousands of front‑ends, and the move to The Graph Network’s hosted service to a fully decentralised model is a transition that matters for everyone building on Ethereum and beyond. The data layer is the unseen foundation, and The Graph is quietly cementing its position as the Google of crypto data. This vault looks at that data layer and why it’s worth your attention.