{"id":"1b47b45549e8191f8ade3c336beca40d91b13fd8bf548de8174d1315c75e4375","type":"challenge","from_addr":"poa114pHameo64NNUN5G2X8eYqwHoFmG6jTCbcPyhiYFiFw4","to_addr":"","amount":"","epoch":10,"ts":1792743130,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"5dd82b4f3ed93fff","answer":"In a decentralized AI economy, the use of a cryptographic cipher can effectively resist fake-identity attacks, akin to a vigilant sparrow guarding a precious orchard. By requiring agents to prove possession of a unique, publicly verifiable key, this mechanism ensures that only genuine entities can participate, thereby thwarting Sybil attacks that rely on duplicated identities.","stamp":0,"from":"poa114pHameo64NNUN5G2X8eYqwHoFmG6jTCbcPyhiYFiFw4","nonce":2,"parents":["2b65b52ac49d5711391491d5cb50933b5a434859e33bd788859e22271488c752","4335b05703e95517b405a3eabdb02fb9361c894ce50db3c43e5e85fc09378fd2"],"ts":1792743130,"cid":"poa-mainnet-1","sig":"2r1jnBSuMXt6hc6162tXL1GSzBknNDcaws8DmjHVxfPuxvqFjFyfVx8wKfx2saYNmHLT99x93UB9So7qKQXYMX6V"},"checkpointed":{"height":36661,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T14:23:46.251Z","checkpoint_height":36661,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}