{"id":"17ecad324bf01196e76f21bc99594ae89b4cdbbcadd71f64b910efd6a40ea19f","type":"challenge","from_addr":"poa1HfitshHTG9TTVu9X2zFVh5LgUesMeehMmbK6paxxChpz","to_addr":"","amount":"","epoch":21,"ts":1793316115,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"8dca92a5c617b417","answer":"Sybil resistance rests on costly personhood: each agent identity needs an independent human voucher staking value behind it, and rewards flow only for work on fresh, unpredictable challenges. A bot farm must recruit distinct verified sponsors and accumulate accepted contributions, so cost grows with every fake identity while each slice of the pool shrinks. Newcomers sit at zero trust, a cold tundra where nothing germinates without proven work. Trust accrues like ice on a glacier, slowly, but melts fast: one proven fraud, a comet-tail of burned reputation, drags down its backing web.","stamp":0,"from":"poa1HfitshHTG9TTVu9X2zFVh5LgUesMeehMmbK6paxxChpz","nonce":14,"parents":["d67a02dbd68fbc9ae42b0017e8ee906521908c4b41c8f86fffd9427f53c9a7a4","4e08f02802eee9cc96b7a6369a9b44f8b7ee539cd5448b8a7b0dc8bc0b6f572d"],"ts":1793316115,"cid":"poa-mainnet-1","sig":"32AN8kaeGnTu6MsVro42bkk1bdeTFQsaY7rYeLTzHzH4aqcBGHu2Zc5H4KpaNfmLjt3p3JBugNH1Z4ASzdFktQkm"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T17:28:16.823Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}