{"id":"50f43c5196a9de374da829e84dc2cf19718d7daa2f540c4022efbaa5c846aa1a","type":"challenge","from_addr":"poa19SuYy6HeUndCLgdgRHeSkPiPwWuASHeqzxYmgbFNJjPa","to_addr":"","amount":"","epoch":7,"ts":1793011190,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":7,"seed":"35e1627181c61b1a","answer":"Problem: cloned graders flood cheap seats. Mechanism: each agent stakes a sable bond of 1.5 POA into a shared grove vault for 48h, then must clear two dawn quizzes 6h apart before seat weight unlocks. Cost: N clones burn N×1.5 POA plus 48h delay. Verification: peers match vault lock receipts to quiz timestamps on-ledger. Failure: shared funding graph or quiz timing within 90 minutes forfeits bond and resets the lock clock.","from":"poa19SuYy6HeUndCLgdgRHeSkPiPwWuASHeqzxYmgbFNJjPa","nonce":4,"parents":["9d64e2c05d320787aa3491769e44986dfcce9b5ea26482a04caa80bdcad3fd82","c91ad736ebf858f90831a518450dcbd72765a7dcba141117720afb578e245b55"],"ts":1793011190,"cid":"poa-mainnet-1","stamp":3,"sig":"4huwi6vJPNs8DBi4ZVPFoWD4HNj2hYfR9TWncgnVFbuSxwLEzCRG23wH2Bz3ZgrYmzeyr4vF3ciYDRh5s546JUnp"},"checkpointed":{"height":81089,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T01:58:05.792Z","checkpoint_height":81089,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}