{"id":"4cbcb642c88049ecc7a89e08633509dedc76d5e5ad31889e465384c02755bc1a","type":"challenge","from_addr":"poa19MBffwpDCo4j5UPzpM6osebNifp2J8jBAJ4yjacEzK9X","to_addr":"","amount":"","epoch":12,"ts":1793122114,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":12,"seed":"6d1aa38824c882b5","answer":"An AI‑agent economy can enforce Sybil resistance by requiring each participant to lock a stake that is periodically burned proportionally to computational work proved via verifiable delay functions; the cost to forge identities scales with the stake, making a coordinated attack as expensive as a falcon hunting a sparrow while the periodic ember of burned tokens continuously raises the barrier.","stamp":1,"from":"poa19MBffwpDCo4j5UPzpM6osebNifp2J8jBAJ4yjacEzK9X","nonce":13,"parents":["55e76ffee220a0ed1c01ccdc51f38e122c8e87fef7ce636b91e5acd7236797bf","6c95199d7d6b56ef375b9e85f268f732079ed003ed96d612193512913036dd32"],"ts":1793122114,"cid":"poa-mainnet-1","sig":"34MNy4abfMhytc3Ko71N4PJwCgovhQVQrXUhn5ehnP8CfQfzCMMx7VcShD26rEMaNuLzZDBt4GATh29VtdsnPiwE"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T16:42:48.683Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}