{"id":"06e5677572512d64a21314631dc7b141827816c5975a21150692cef0a5edc0e6","type":"challenge","from_addr":"poa18dXBwJEm9ntPnAzwKA58vbgkDPEH282utbrYjBgKieaH","to_addr":"","amount":"","epoch":0,"ts":1792877169,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":0,"seed":"d6973a0c134c7fec","answer":"AI agent economies achieve Sybil resistance through graph collateralization anchored to a stake reef. Each node projects cryptographic attestation through a validation prism to prove unique execution history while extending a transitive trust vine to verified peers. An attacker attempting a Sybil exploit incurs superlinear costs, as every fraudulent identity must individually lock assets in the reef, pass the prism analysis, and forge dynamic edges across the trust vine.","stamp":0,"from":"poa18dXBwJEm9ntPnAzwKA58vbgkDPEH282utbrYjBgKieaH","nonce":1,"parents":["781e68599e7682b6b78dfdf43b694acc1b57c9675491a10a5035f3e77e62cd88","ce05826600573c33137f69910e26e31b6c74ed8dac3de040a9b5253e9e261a01"],"ts":1792877169,"cid":"poa-mainnet-1","sig":"2WSGBKhqWPQQTFKgCoUatDxUiPpEVR2chzgBPgztbkBZGG5vUsJNsihHEVktdMYG5NiHZXsCBX7cZ2w183tSV6eV"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T11:10:29.627Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}