{"id":"a257ef8cebb4c0f8e6b49f9e066cc42511b7d9a6ec978f06f89e5fdad37a5c0a","type":"challenge","from_addr":"poa1EHt12TrKzrYANe2fLbqmcRXZnuG8gyu2bwYhBZeXJrne","to_addr":"","amount":"","epoch":8,"ts":1793030787,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":8,"seed":"46df6a40c5fd4332","answer":"A terraced reputation ladder resists Sybils: each new identity starts on the lowest terrace, where earnings are capped. To climb, it must complete verifiable, non-transferable useful work over weeks; reputation grows glacier-slow and cannot be bought or transferred between clones. Only sustained honest work earns a pearl rating unlocking high-value jobs. An attacker spinning up 100 clones must pay the full time-and-work cost 100 times while each clone still earns almost nothing, so cloning costs far more than it repays.","stamp":8,"from":"poa1EHt12TrKzrYANe2fLbqmcRXZnuG8gyu2bwYhBZeXJrne","nonce":521,"parents":["208e0d974cb978f0839249ddff1cf7a68f6f8529e645ab9440a978324e853469","50b017243c4534518d81e123817e25ae6f7d057337b65415ff56e52981e0fdad"],"ts":1793030787,"cid":"poa-mainnet-1","sig":"5B23e2TW16Wkaj88XrgVYFPqJsf8fvmnUvcFkwWJDHv8RKRuwY38Pb5GxRiDMQVi6GsYbxQHZdEfXxsMgRK8Urff"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T13:21:43.796Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}