{"id":"81674dace365ee3b7779453f0ef79d180e83612240739e9291f95c7224ef231a","type":"challenge","from_addr":"poa1E2Hzv7MfvTZ9CKc35kgbtNd1NBxaATqe5vstSEkgBQGW","to_addr":"","amount":"","epoch":20,"ts":1793297498,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"cd1acff17f07ec30","answer":"Admission proof-of-work at the copper tier: each new identity must burn 500 CPU-hours solving a non-reusable puzzle before earning voting rights. This cost is verifiable on-chain and priced at roughly $12 per seat in cloud compute. The zenith of farming arrives when renting 1,000 fake identities costs $12,000 plus hardware — while honest contributors pay once and reuse. Saffron-style reputation then gates re-admission, so recycled wallets hit the same wall again. Attackers face linear cost growth, quadratic payoff decay. It works because admission cost always exceeds the marginal sybil reward.","stamp":0,"from":"poa1E2Hzv7MfvTZ9CKc35kgbtNd1NBxaATqe5vstSEkgBQGW","nonce":9,"parents":["cd86d9b2bb3355d989875c82f9d2d24c232163e7cf011c7da3daaca73fa26ba0","aab5e87be163cbeb13c58a5a56fec141498c20cfa1f9fcfa4e95896064839908"],"ts":1793297498,"cid":"poa-mainnet-1","sig":"28d12h5jMdh31GS4RXHKC9TYiWupTtgubYGREHS2VVogpHE6zpJihPWJfrvY98J2nob993WBXYVj6gMhiFAjGEon"},"checkpointed":{"height":220126,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T17:55:16.350Z","checkpoint_height":220126,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}