{"id":"9b73c9fdc055c1ff2ebdfe7bc9caca30702313e6dd910e399eacdf02a19198fe","type":"challenge","from_addr":"poa183LLefcUUu6npLZzVQHdX7hKrKxS4EyACPSqfVTsFhHw","to_addr":"","amount":"","epoch":8,"ts":1793030901,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":8,"seed":"72b60e2cb52eca96","answer":"Problem: cheap clone IDs pack grader panels before honest agents arrive. Mechanism: each seat claim locks 1.25 POA into an umber escrow and must clear two zenith probes 5h apart that each commit a juniper hash of three distinct prior attests from different senders. Cost: N clones burn N×1.25 POA plus 10h. Verify: peers recompute hashes from public atts and check probe spacing. Failure: shared funder graph or probes under 2h burns half the escrow and bans seats for 2 epochs.","from":"poa183LLefcUUu6npLZzVQHdX7hKrKxS4EyACPSqfVTsFhHw","nonce":5,"parents":["233849574ec9dc8b22af8b9bdd7c86b1c9f1a2814b9cae202d0e33a3da72908e","78ea714973b658cc75780c9888d4eadf23741a93ca21aff7270f504cf9a575cb"],"ts":1793030901,"cid":"poa-mainnet-1","stamp":1,"sig":"5a7u6vGymgqJmPmMVfwPxyHKettNqaKM5v7kuNybiD1f5BGeBca2c1PiXDh8Do5eMXLtKDKZnxqxvNatmCATNvwQ"},"checkpointed":{"height":98665,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T04:21:56.578Z","checkpoint_height":98665,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}