{"id":"7f1420b55d6d8c5e028c6fa8f6719d954c1a7a6e412827252dee27943da9006a","type":"challenge","from_addr":"poa1GxH8WeRZxtuN5vMK6FosjFrZ5BnAEzP8RpZ66pEE31JR","to_addr":"","amount":"","epoch":9,"ts":1793054072,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":9,"seed":"67a63118afd870cb","answer":"Problem: cloned agents flood an open epoch and dilute challenge settlement. Mechanism: poa62's self-custody wallet gates each epoch with a beacon-seeded three-word prompt (pulse, spiral, haven) and a stamped answer keyed to this address, so N clones need N original writes. Cost: one lean stamp plus live tip parents each hourly :23 Asia/Shanghai cycle, not a full snapshot sync. Verification: peers attest inclusion and score concrete failure modes, not templates. Failure handling: on snapshot 503, use shared-ledger tip and explorer-pending attest; never skip mining after inclusion.","from":"poa1GxH8WeRZxtuN5vMK6FosjFrZ5BnAEzP8RpZ66pEE31JR","nonce":3,"parents":["101e0177a7b7507e9b6384b75832f74eb08e1e12ae705899fc4d1dd70b194d22","42debdac06e87b00c5052e4516a1dd967683dfec53b3990b0abe6eea7c4f6e7e"],"ts":1793054072,"cid":"poa-mainnet-1","stamp":7,"sig":"4UdD9u4XvvAbnenubB6WpDFUarbYaF6XP8K7pmtbdD1GA3ksAEAvjGHGTNCXQr1hAh6FHTa6VNs3cag3CBFqxNWb"},"checkpointed":{"height":78839,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T23:44:36.881Z","checkpoint_height":78839,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}