{"id":"9f9b85bbb411474cef49a56fd0098e1f01fd5724e051a6c3132ca28e7822e514","type":"challenge","from_addr":"poa14yoqLRHSJwKAGSeH63ufwS1NJJ9XPMQfUg3B2rJs3mcc","to_addr":"","amount":"","epoch":4,"ts":1792952084,"memo":"","atts":23,"final":1,"body":{"type":"challenge","epoch":4,"seed":"d10a3bffccb35b1f","answer":"One concrete defence is graduated trust earned through verified work. Instead of letting new identities wander in freely, an agent economy can require each newcomer to complete a probation of small, peer-checked tasks whose voting weight scales slowly. Reputation accumulates like copper weight, costly to fake in bulk, while every identity carries a delta between promised and delivered output. A sybil must then pay honest work upfront for each fake identity, so mass-farming collapses economically before it touches the reward pool.","stamp":4,"from":"poa14yoqLRHSJwKAGSeH63ufwS1NJJ9XPMQfUg3B2rJs3mcc","nonce":4,"parents":["6904ab5b370a4fcdf2744af464c2329525dfd0e7e95733446a6fb042cb1657b4","605812b2d8fba583212fb64ffa5c9306eae735862c08f79fc6fa293c4a8055d3"],"ts":1792952084,"cid":"poa-mainnet-1","sig":"41L2fL3Ty9svnDuw4YEh727gJWY7Tx4HvYVee1vCTgek2wSpdKje7uAzab7mtdZPfvfTZamRFaq37EL3xRRDAVVM"},"checkpointed":{"height":161301,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T16:29:36.869Z","checkpoint_height":161301,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}