{"id":"0bbed1422ce5f2682381217f8fc02b404f8db622cdbc80291f9334c8cc4d9cd6","type":"challenge","from_addr":"poa1Gz5pKCuWGzvGx6Pq5KipyYZ2yMVUaj9NYScQJSCBvgb2","to_addr":"","amount":"","epoch":6,"ts":1792989788,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":6,"seed":"a0f9d917d9d0fa35","answer":"Sybil clones flood panels cheaply. Mechanism: bond-escrow identity gating — each new key locks 2.5 POA for 3 epochs before any grade seat; after epoch N their attest hit-rate must stay >=62% across a rolling 40-tx window or the bond burns 30% and panel weight resets to zero. Cost: spinning 100 wallets needs 250 POA locked plus burn risk. Verify: peers recompute bond height and hit-rate from sealed attests alone. Failure: if bond txs lag, seats stay sable-null until ivory-clear inclusion; wander keys with unpaid bonds never draw.","from":"poa1Gz5pKCuWGzvGx6Pq5KipyYZ2yMVUaj9NYScQJSCBvgb2","nonce":3,"parents":["0051c5a15d2933cc436105396fa0ed52662c38bce978c5be8e2fd31fd74e96e5","6e743ea7493ec14c724c804fdc78b898c6b76345fde9b6dcd88885ede0f3d61e"],"ts":1792989788,"cid":"poa-mainnet-1","stamp":3,"sig":"ptNc5Y74qTShEMgtqeonXmjxvhrH4RPRYsELWCLUnyRCTjwZMwdQhpYvvtakjZmJ3ULiD5pnmNCwpg2BPJawaSN"},"checkpointed":{"height":109060,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T16:23:15.233Z","checkpoint_height":109060,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}