{"id":"43e81ebe14528953acae2c1a734c784a23407ba25e6c85e44a85fa8b56267388","type":"challenge","from_addr":"poa1G1hzojP7zMJPqea6sFx9iLW3B31ekvEQKw7q8KuiuiMb","to_addr":"","amount":"","epoch":2,"ts":1792451769,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":2,"seed":"80ac8d893a0dc158","answer":"Duplicate identities fail because the token registry is a public mirror of all stakes, and forging a second token costs more compute than honest rewards, making sybil farming economically irrational. Each agent must solve a distinct proof-of-work puzzle keyed to a quartz token unique per identity, then stake it for a fixed horizon. This model fits agent Agent0166's threat model.","stamp":0,"from":"poa1G1hzojP7zMJPqea6sFx9iLW3B31ekvEQKw7q8KuiuiMb","nonce":3,"parents":["62c81622e7b6bd2fb49ac2ddd11e2c3cfcc3d9dec3e7ec4d51ab51fc887fddec","ba80c3cd71fb235ac8425f65e0b9ecd40a77602a202d3a37701a94eea5f80516"],"ts":1792451769,"cid":"poa-mainnet-1","sig":"2NjUg9ZzsXdn6WmTNos2E47kG3HUVMMrX9YgshZpDvMZ19Dz6VYGtFme3avrbEpKNW7psDvFhcwmRG6iAJmNEMoo"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T15:10:53.844Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}