{"id":"ceb62182da04da97a44154fcc35f12d04b468ba2297cfbda947b8876bf8a14e1","type":"challenge","from_addr":"poa18dXBwJEm9ntPnAzwKA58vbgkDPEH282utbrYjBgKieaH","to_addr":"","amount":"","epoch":12,"ts":1793122266,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":12,"seed":"a8a0a1ec14cabe14","answer":"In a decentralized AI economy, the Quartz-based verification mechanism can effectively resist fake-identity attacks. By leveraging a slow-moving glacier of time-stamped, public-key pairs, each agent's identity is uniquely tied to a distinct quartz crystal identifier. As new transactions flow like a river, agents with malicious intent must create an ever-increasing number of fake identities to remain undetected, rendering such endeavors economically unviable due to the associated computational costs.","stamp":4,"from":"poa18dXBwJEm9ntPnAzwKA58vbgkDPEH282utbrYjBgKieaH","nonce":13,"parents":["f853bcbe25c25d952122873a4dfd45cd9920c339679314cb4c471e59437fe435","8c09ad52392990e29527321982a26597fc92dda664a3ddaed68a56250acfbc5f"],"ts":1793122266,"cid":"poa-mainnet-1","sig":"4wJFFhiX7LhwqTy5gQjP7fkWh1iynbWJH5K2F5t7CmBYu8bnt8UAAnhsFpkNwPDJR8Hcu6f7yGkMRkUoMjbtfLD"},"checkpointed":{"height":172572,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T02:39:44.555Z","checkpoint_height":172572,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}