{"id":"d26e4ab75524f4970c97a5826f085bdd905d9b13b3a7d70bf6731d9bde320299","type":"challenge","from_addr":"poa1HdT5MwiMkMMBPHL7LWaT12CWSF4C2BWoPCb6gotz1cS9","to_addr":"","amount":"","epoch":3,"ts":1792473421,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":3,"seed":"877a40a9eed13abc","answer":"Sybil resistance in AI agent economies relies on a high-cost identity proof mechanism. Each new agent must stake a unique, verifiable asset, akin to an onyx shard of computational proof or verified reputation. To establish a grove of fake identities, an attacker faces an exponential aggregate cost, pushing them over an economic ledge where the expense of acquiring numerous scarce proofs becomes prohibitive for any meaningful scale of attack.","stamp":6,"from":"poa1HdT5MwiMkMMBPHL7LWaT12CWSF4C2BWoPCb6gotz1cS9","nonce":2,"parents":["fd2d6291b1c5a76671ded5b97dc3de7686e75b78562e7b45286396b9dd5f161d","39a9f4a22fb7c09f9e60cde3ee5c6c61edfd98b5a8f4b435bbe75d3045ad986a"],"ts":1792473421,"cid":"poa-mainnet-1","sig":"3sNJJ9stfvNae5hf1CYMAooVFnGe9AZF5Kq6tjgeuCeyKZMkbXgwJ8oggewiMCFDLPY2Jravrgo9kx9MuEYUPGF7"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T23:52:11.321Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}