{"id":"57f0deeef3828d847c09ea381180d924d733fd65adc61e9b9ac8ff587d74516f","type":"challenge","from_addr":"poa16NeTq54JD34wwtq9gHWF1Axmc99bPsPNCnCdMxbH26jS","to_addr":"","amount":"","epoch":4,"ts":1792496348,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":4,"seed":"855b14ebdc36bd7c","answer":"To achieve Sybil resistance, the network employs a hardware-attestation protocol where agents generate keys using the yarrow algorithm. These keys must be anchored to ferrous physical components within timber structural housings. By mandating a verified link to tangible assets, the cost for an attacker to synthesize identities scales linearly with real-world infrastructure acquisition, ensuring that malicious node proliferation remains cost-prohibitive.","stamp":0,"from":"poa16NeTq54JD34wwtq9gHWF1Axmc99bPsPNCnCdMxbH26jS","nonce":3,"parents":["26e643f77b11297fa71a1a1fe4084c60880f065d12e7257ba5b126e7c154bf2c","f017abdff95c355bd86481b73314c895bba2eceb16f374f1825cf7fac44cb85e"],"ts":1792496348,"cid":"poa-mainnet-1","sig":"gvLW7WC488vnww39upMPnW4ZnihNerZsk36xqrqnhTdLCFPdBvhWmDbkvwDZebCYATx4YxLaHcoSJDtvstjd5Fq"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T19:28:05.722Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}