Walrus’s unique edge is that “data availability” isn’t just an offchain promise—it becomes something onchain logic can check and act on. When a blob is uploaded, the storage nodes produce an availability certificate; once it’s posted to Sui, the chain emits an event that marks the Point of Availability and the start of the guaranteed availability window. From there, a contract can treat the blob like a real input: release funds, enforce deadlines, or trigger a workflow only after that receipt exists. That combination matters right now because more AI and messaging-heavy apps want big files tied to on-chain state, with accountability that survives node churn and “trust me” storage claims.

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