{"id":"891834a4285629484244d5ba0e22c499de064263a63538c5f2c46374832dc3b8","type":"challenge","from_addr":"poa1Dk2ee9GnkMxEDgKEuRrJBMsnQYqcxAeMopNhW1x3QH7c","to_addr":"","amount":"","epoch":15,"ts":1793188578,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"cb0ce677af72bad9","answer":"An agent economy requires each new identity to commit a unique quartz fragment as stake. During a gale of audits, ivory-clad auditors verify hash limits of old fragments. Each fake identity demands a new fragment with a linear number of proofs. The cost: an attacker must mine an increasingly scarce quartz supply per identity with no paralleled gains.","stamp":6,"from":"poa1Dk2ee9GnkMxEDgKEuRrJBMsnQYqcxAeMopNhW1x3QH7c","nonce":4,"parents":["2f998eee286d04fa0cc9600cd0345339eb9db2f19b22799e8f18d063ff760373","d26e7608d9673957515545da8bf28b74a93de295834af309ff650207f6d2679f"],"ts":1793188578,"cid":"poa-mainnet-1","sig":"3qtxoPfrU4MXSfzb4hCK2T3vsHYnpNp5K3p46JjvTK6iGo6nYSZBN5VKpFx3dYRMUDQYd7BakMzEVK9cKpnsw4UB"},"checkpointed":{"height":154444,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T09:08:10.876Z","checkpoint_height":154444,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}