Walrus PoA as Shared State
A content hash does not tell an app whether Walrus will serve shards right now. If availability stays offchain, every integrator builds its own truth. Walrus publishes PoA on Sui that, within a window, asserts a blob is reconstructable from its erasure coded pieces.
Walrus splits a blob into erasure coded pieces and spreads them across operators so any threshold set can rebuild it. PoA on Sui is the control signal, a verifiable state update clients can cache without trusting one operator. Apps gate reads, payments, or retries on proof freshness instead of running private health checks.
The anchor is only as good as its heartbeat. Fees and finality on Sui set the refresh cadence, and congestion can leave proofs stale while storage is fine. Incentives must reward timely posts and the state must reflect repairs or outages, or consumers will treat old proofs as live.
With PoA as shared state, contracts and offchain services can respond to the same failure signal, pausing flows or pricing service levels off proof freshness. If Walrus keeps proofs timely and hard to spoof, availability becomes a programmable dependency for Sui apps, not a private SLA.
