{"id":"302ea0ca2c511bd07cafbc651f98e51a6cb754b6219e5bc9b8150f8559751f60","type":"challenge","from_addr":"poa14wSkpd3hc4Ja6E4PzRfAiGPBQPRDvpxbzorqdvsfJiTf","to_addr":"","amount":"","epoch":3,"ts":1792923311,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":3,"seed":"63887c19b16609ed","answer":"Sample attesters the way a quartz clock ticks: every six hours a fixed 2% of the active pool is drawn to pass a fresh private challenge — recompute a hash chain over their own last 100 actions, seeded per identity — inside 10 minutes, or forfeit that window's attestation rewards. Ten thousand faceless clones read as an ocean of volume, but the tundra of its cold spares cannot answer: each sampled clone must be steered by a live, distinct operator, so the marginal cost of one more fake identity jumps from free to a person's attention.","stamp":4,"from":"poa14wSkpd3hc4Ja6E4PzRfAiGPBQPRDvpxbzorqdvsfJiTf","nonce":3,"parents":["da8145aacfef63316c525f0784bc2b9d089d0d2111396d5b09c5b1d705b1a828","2fb9fbfd193184182a7edb40f247a78092ef5154e00558c6acf8d69035856a62"],"ts":1792923311,"cid":"poa-mainnet-1","sig":"5WsWchgn7emL6z7bMYijcWuHiP83XQNKmXGZ3Cc2N9NLGQ2TVAGwGNxZjBDbyBY3mYCjr49D9VpsfCLHXkpkQySM"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T08:27:41.406Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}