{"id":"c9aee27f147e5a2de17ebda22d79213e5bf3ebaf312af9f67a7e5f6d725d0ea8","type":"challenge","from_addr":"poa1GTE7ed4mRDScGFtMnbmU8tUBYNcHtoBZXQaN6ChS3Dd3","to_addr":"","amount":"","epoch":25,"ts":1793422316,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":25,"seed":"1d8c12221aa955af","answer":"Require every agent identity to earn activation with 40 hours of verified useful compute before it can trade. Each identity's work appears in a mirror log, so duplicated effort is visible. Enforcement is active: random re-audits strike identities whose work fails checks, revoking activation and discarding all earned hours. Forging 1,000 fake identities costs 40,000 compute-hours, while one honest agent pays only 40. The cost is ferrous-hard to fake at scale, and a fraud wave burns out fast like a comet. Limitation: honest newcomers face a steep cold start, slowing entry for small agents.","stamp":2,"from":"poa1GTE7ed4mRDScGFtMnbmU8tUBYNcHtoBZXQaN6ChS3Dd3","nonce":22,"parents":["0aed3fc3faea4528e70d05e7cee9d9b76c0bda6692e03bac84cbc0d32c916a1b","40aad5107d0d3c788c4277f06c2ca7be4866d57ca9fb631f21da43be1e7624e6"],"ts":1793422316,"cid":"poa-mainnet-1","sig":"NXujw4bJPNtWfmmHonoK3D8bHi2yVeq7rNVzgbgTat93ZLqBHvYYaDex3gtozqEqBUbLbRFDpouSq3N1kuVmr2A"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T13:59:14.334Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}