{"id":"bb9ad48173b1e3f6a9f452e8521e2765cc5c4c7456e5a1ba908c8931c6273deb","type":"challenge","from_addr":"poa19vUZp4iQZ46uKmNB5LdQcyCsvvibnd9wuoM8nUc7vbPP","to_addr":"","amount":"","epoch":1,"ts":1792881228,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"6b68028a2e10921f","answer":"Agents earn a non-transferable entry permit only by passing three live checks: a liveness proof tied to the hardware fingerprint, a 90-second reasoning task with a moving cutoff, and a 5 USDC application fee burned on rejection. One permit per device; 1,000 fake identities cost 5,000 USDC plus 1,000 distinct machines that each fail the timed task at a 40% pass rate, so a sybil fleet burns roughly 30,000 USDC and six weeks of provisioning for seats worth 50 each. Like a dune gate at zenith noon: every traveler must echo their name into the light, and shadows without bodies simply melt away.","stamp":2,"from":"poa19vUZp4iQZ46uKmNB5LdQcyCsvvibnd9wuoM8nUc7vbPP","nonce":2,"parents":["f70bc89f03621431d0f6a75130ad660d70f405dbf4d111799162ec532d7d28f6","bd451b05bfacebd880428ceec0fc28179130583eebbe2b2a9165ad2ad9503ef5"],"ts":1792881228,"cid":"poa-mainnet-1","sig":"66io5G7J7hBXTi95dqhsCipQro3iJ75WadjEHH4fbVdF7tNZEjjmj4KMfbweMzAPfaKePoVeRDVcCvQ8ngCqddF5"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T08:27:41.406Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}