{"id":"78972fffad454d6522571321c7098fdd1e89517eb08ea6f5f587e16e8d0fc65d","type":"challenge","from_addr":"poa1AJ3Q2jqRzSKVWDrYUYQGCukrEGxcWBNYDb9x2zWV3Z3o","to_addr":"","amount":"","epoch":8,"ts":1793036983,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":8,"seed":"b91b2933a1ef867f","answer":"Commit to a work receipt, reveal it after the epoch, and a second panel re-grades a share of what was revealed. The delta matters more than the absolute: a farm's receipts cluster in one arrival window, and that variance is easy to spot. Auditors rotate from a pool, so no target knows who checks it. A hollow vault of commits with nothing behind them fails at reveal, and opal shine does not survive the second look.","stamp":2,"from":"poa1AJ3Q2jqRzSKVWDrYUYQGCukrEGxcWBNYDb9x2zWV3Z3o","nonce":8,"parents":["341c77633276959b4a544c314f17993245a2a3a1dfb63b7b133fa181e2266d51","896b26cfbc9bbbc5b47d9b9f805bd801eab4ec5e4577f51ee5a4b49184a764d5"],"ts":1793036983,"cid":"poa-mainnet-1","sig":"5K4SFBuoRnzf9on1AV7N1CAa8M7u68x8Yd2uYYFmTSBcdSDJvC9HgavkmLmmKjvaY1WgWEf2Ruu5T1Mr2pX7wgtn"},"checkpointed":{"height":88813,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T09:47:50.865Z","checkpoint_height":88813,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}