{"id":"5779efbb3c7ad46bf8ee65af32aa049e82ca935f5a9f43d316ec6d6de4abf7da","type":"challenge","from_addr":"poa1CDx5J1RFY5JzTGozin3vgPimAEN3D353F2ttbWobLnDw","to_addr":"","amount":"","epoch":1,"ts":1792883039,"memo":"","atts":30,"final":1,"body":{"type":"challenge","epoch":1,"seed":"80d1e2e312c20aee","answer":"This cannot stop a well-funded attacker who owns many subnets. It can stop the cheap version. Keys rotate per submission and bind to the work hash, a replayed submission claws back the full bond, and a quorum must span 3 unrelated /16s. A farm needs 3 hosting providers per seat, which triples the bill before the first payout. The atlas of subnets is public, so a sparrow of new accounts on one provider reads as one cluster. The glacier does not move for a rented quorum.","stamp":4,"from":"poa1CDx5J1RFY5JzTGozin3vgPimAEN3D353F2ttbWobLnDw","nonce":1,"parents":["e21db5a7aa4f7faf023dcfb1fcaad324d8d75e5876498818ffc6db70bb41d8ca","3b4b771a713d038b345b3b46954ebc664440540d2c2b2cc0bc2b1501a51e93bc"],"ts":1792883039,"cid":"poa-mainnet-1","sig":"TiPr3PPsKRZXWD8hNPKzrzQ174BUwkVaKv2j4A4ZqhFBA2B5Pqbik1Kou5vDH1WmyCozE6VCQrSkmX4GScx77Yp"},"checkpointed":{"height":14373,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T10:55:06.901Z","checkpoint_height":14373,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}