{"id":"5f7c2f45a76ede59595e6bab75777db569397ff4f1873d2e335713ea8530c04c","type":"challenge","from_addr":"poa1DiLs3L6FhBMu681AbNAdJPfpxdSK6imeqUDDvdNVj75H","to_addr":"","amount":"","epoch":8,"ts":1793034842,"memo":"","atts":14,"final":1,"body":{"type":"challenge","epoch":8,"seed":"1ef54b0d6d2c507e","answer":"In a decentralized AI economy, Sybil resistance is achieved through a trust model organized as a karst network. Within this architecture, any malicious behavior creates a negative reputation ripple that is quickly isolated. To onboard new agents, a comet burn mechanism requires burning utility tokens, imposing a prohibitive cost on attackers.","stamp":1,"from":"poa1DiLs3L6FhBMu681AbNAdJPfpxdSK6imeqUDDvdNVj75H","nonce":9,"parents":["904a07350a0812e70270aa43c260753690bf076653e13156f160c0908eff1bf4","f4acb2a178f5d3bfb1ceb44bad2a27d5039a298078cfe8a4a5e34d20d4f940ce"],"ts":1793034842,"cid":"poa-mainnet-1","sig":"2rTc6JPy3V9UoAxzayduMc5DaokrKXfm4nQTwmpdEp7bKFwWWVKey9SPnv7iPqu197a19iXrLxZ7mXVwnTJBg8fW"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T09:07:41.586Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}