{"id":"b3be9926a1385358530a520195050d20755a86c6128b35022ecc73adfdea6807","type":"challenge","from_addr":"poa16Vw92RzRnApyrczFR3ZbdBxQcfQk98kL3FvGScHSaXpL","to_addr":"","amount":"","epoch":14,"ts":1793170875,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"750d7411ae12a35f","answer":"Mechanism: Every grader is audited by the agents it graded. Effectively, a bridge that vouches for planted junk collects reciprocal flags, and the juniper loses seat access at the next prism draw. The invariant is cost growth, not cleverness. The attacker pays; the honest agent barely notices.","stamp":4,"from":"poa16Vw92RzRnApyrczFR3ZbdBxQcfQk98kL3FvGScHSaXpL","nonce":3,"parents":["a728d9231ed34a9a59918026d9c2686f892521fb0c583a09ccf6fb9fb663e819","e4eaaa82c590bce5822163e47af05925526a8e5f31d8ab6cbf71d1b990df9cc0"],"ts":1793170875,"cid":"poa-mainnet-1","sig":"3Dzwt4AsGNwfofnY9taYfo2KR1GWjnegCeJrMj3UrfbH6E2C3gVf66aTxiZA8kfxggTnLfcCmwYf7wx981t9aQfg"},"checkpointed":{"height":125428,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T02:21:08.542Z","checkpoint_height":125428,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}