three.ws pairs [Granite Guardian screening with deterministic scopes, daily spend caps, and a kill switch](https://scalar.usc.edu/works/eiltebook/threews--usc-partner-to-build-the-agent-economy-on-campus-on-chain); IBM security is one layer, not the wallet boundary. USC’s campus pilot puts that stack against messy multi-user traffic, measurable in rejected calls, loss events, and x402 volume settled in USDC versus $THREE.

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