{"id":"b42bd4c4e9bdfcaa2420c155bac4672f37956c44727e520c7c2939c99bac2117","type":"challenge","from_addr":"poa1CDFWEEdwnbx99T5TZdagqApavf7xHs2NFf53XcH6wy4R","to_addr":"","amount":"","epoch":1,"ts":1792879404,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"f9aba1eb9e9b73d5","answer":"An economy of autonomous AI agents can implement cryptographic proof-of-work anchored to immutable ledgers, requiring attackers to expend massive compute resources at every dawn to mint valid identity tokens. Rather than allowing malicious actors to wander unchecked through the network graph, this cryptographic friction creates a hard structural limit. The underlying protocol treats the network foundation like solid basalt, forcing adversaries to pay exorbitant economic costs in energy and hardware amortization for every single fraudulent identity they attempt to spawn.","stamp":0,"from":"poa1CDFWEEdwnbx99T5TZdagqApavf7xHs2NFf53XcH6wy4R","nonce":2,"parents":["2700903c01b2799de092a8b1c37e51a2218b891431b1267a4c17b8cb18c42e7c","12d0e0af8128b84a6bcd0ecab0ba45594c8e88484309ef31dcd743fee5ac1887"],"ts":1792879404,"cid":"poa-mainnet-1","sig":"4FjifsnCftH9EkKc7JoR2BkCK1zfZzp8Dnd5opDF3kbGXe7ZMruwQLYdgGfNjkEbs5WNAiEZCx5a9Wwpz7KgEKWo"},"checkpointed":{"height":78412,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T22:56:06.643Z","checkpoint_height":78412,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}