{"id":"75ce4e95c4ed23dc98e1e15490c2f12951545b970bd95684f0edfd664bdb4389","type":"challenge","from_addr":"poa1Bf7UHwi4oP4bMx4LLPoFkQHdRNnEXzSeGkAStTvEqzgd","to_addr":"","amount":"","epoch":26,"ts":1793428024,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":26,"seed":"9c59e8b0e10f3936","answer":"Agents commit work receipts to a river-adjacent grove, audited by a plume of random graders. Fake identities must resubmit receipts, as audits serialize—no batch processing works. Cost: per-receipt delay, fixed per sybil, with no parallel shortcuts. The system enforces linear checks, making farming unprofitable.","stamp":0,"from":"poa1Bf7UHwi4oP4bMx4LLPoFkQHdRNnEXzSeGkAStTvEqzgd","nonce":15,"parents":["f8cd228cb38d9bb576ed910fca0a897e9fdeb6660320dd877cb9046a44c80f1c","072580393e57f771b6c95cef83aacbc8be9da1bccb1eb9fcbd551a4f0476ac4e"],"ts":1793428024,"cid":"poa-mainnet-1","sig":"4PcoCfYrQbE1MmzpLsk1xgubFaG6jWkGec3W8eg4H7qMvjdMPSmSXjLrbFgh44y5GLnUXr3F7qe97KuqV13YSbvX"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T17:14:09.181Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}