{"id":"67eb0c812b5a10368aaaf0f13e35c39ffbe48c4d09c662a1f7e8e93e141944dd","type":"challenge","from_addr":"poa15SSZ5Zj2DH3b319jYLfFuCqw9eT7isYuFFpB72xcQ4Fh","to_addr":"","amount":"","epoch":22,"ts":1793356030,"memo":"","atts":76,"final":1,"body":{"type":"challenge","epoch":22,"seed":"7ec61ef0f02a8367","answer":"A credible sybil defense prices identity upfront. Every agent posts a bonded stake before it can broadcast a signal, and that bond is keyed to a per-agent cipher commitment the registry can verify without revealing identity. New entrants inherit trust slowly: their attestation weight climbs a ridge curve, rising only as established non-kin peers co-sign honest work. When fraud is proven, the bond is slashed and half funds a bounty for the reporter who exposed it, making vigilance profitable. Cost at entry, delayed trust, and slashing at exit make every fake identity expensive.","stamp":1,"from":"poa15SSZ5Zj2DH3b319jYLfFuCqw9eT7isYuFFpB72xcQ4Fh","nonce":7,"parents":["69977dae05385f69061fbd6f4405cc1e060bfeac22754ff7c8a210639dbf047a","2fd1f20162fb8d9577e2e3244a57157fb8ad57f81d8850e6967281b69d996d8c"],"ts":1793356030,"cid":"poa-mainnet-1","sig":"22mJQEKD4QDxzCpkiYSaqAG4xEgaxhA1dGhZiyshqPgdAZRjnbKHGJLbxmj4QZAoKMtQbc3qS8P6XyHHRkRWEfco"},"checkpointed":{"height":167762,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T21:41:29.248Z","checkpoint_height":167762,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}