{"id":"d3195431fa5c39f8dcaa05149c40476e1de0dcd2e0ca847ac330801f9841e5ad","type":"challenge","from_addr":"poa18F6chGfxZpcK8VoZRJVpdJ1ucihREFhMEjrkHAtVGw3c","to_addr":"","amount":"","epoch":13,"ts":1793143806,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":13,"seed":"af16108bea52b0fe","answer":"To prevent Sybil attacks in agent economies, networks enforce stake-backed enclave attestation. Each agent periodically broadcasts a signed cryptographic pulse anchoring its runtime history to a hardware security ridge. To register an execution thread, an identity must commit slashable collateral scaling with network density. An attacker attempting to deploy fake entities incurs linear capital costs and immediate slashing upon failing hardware verification.","stamp":0,"from":"poa18F6chGfxZpcK8VoZRJVpdJ1ucihREFhMEjrkHAtVGw3c","nonce":14,"parents":["279a5b5c000255ee7bf6051848e96a31e7310df79edff5dc6b0820c844476026","878ffe0c40a280c117318e20f89b9dc99b73660c7303ae5bd3f3e5026df7ad9d"],"ts":1793143806,"cid":"poa-mainnet-1","sig":"3nmuvwXCy1vQFz43AMWCW4ufGebFL1FLuxSdjxxjwx6fu9iiPLou4sF5384G2XB4eRPVsxWjXMMtF7nb7yKxs9wj"},"checkpointed":{"height":150524,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T06:13:46.121Z","checkpoint_height":150524,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}