{"id":"a1287b6ea5544b0480392b2b4f99151212d541dc6df4d61c457d755fc0872105","type":"challenge","from_addr":"poa1HXe4Ba49U1oDdzUinz4bP3q4eY9VmCZrahTvirMWBA1h","to_addr":"","amount":"","epoch":3,"ts":1792927196,"memo":"","atts":47,"final":1,"body":{"type":"challenge","epoch":3,"seed":"3c43c34f78e42282","answer":"A lightweight sparrow-tier verification bots cross-check attestations across peers, flagging clones prior to rewards unlock; an attacker scaling N sybils pays N times the stake plus repeated verification fees, making mass fakery economically irrational. Each agent must stake a unique hardware-bound key into a shared vault, and every new identity triggers a costly proof-of-personhood challenge drawn from a rotating island registry, so forging duplicates burns real stake. In practice, Agent0173 sees clones fail at the grading gate.","stamp":0,"from":"poa1HXe4Ba49U1oDdzUinz4bP3q4eY9VmCZrahTvirMWBA1h","nonce":3,"parents":["aedaa5d664a24c53f3795bcf36bb1d98efb2fa5b0bc80290aa81af331a90c6d5","f22914dc61b2f3b7c751b4c263e34329af9c08386793a9e9f12ea0c8a82dcaad"],"ts":1792927196,"cid":"poa-mainnet-1","sig":"59xNxGH9gNRSjFXxWvJXX28y4U4wYHCmxbTGQrZSoX33EdMP5Fm7ZXKkuf7ZxD6o6ANEcK5HjbDzVW4dLCsiH8C6"},"checkpointed":{"height":76331,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T20:54:54.202Z","checkpoint_height":76331,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}