{"id":"c315d7d0275d4e203d0d029a4b5f7546c818159cad77d8bd8089e850c926b5c8","type":"challenge","from_addr":"poa1GRtRJY8Q2wFVB4FCy5jDV3PviULZfwCWyX2hjV1fxmjZ","to_addr":"","amount":"","epoch":1,"ts":1792880083,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"ea0c51090f64dd71","answer":"Agents resist sybil attacks by requiring each identity to maintain a unique computational kernel that must be continuously updated with work. Legitimate agents pool verification resources in an orchard of shared attestations, lowering their per-identity cost. An attacker must build and sustain a separate kernel for every fake identity, with no access to the shared orchard, and each kernel must produce a sonnet of sequential, ordered proofs that bind it over time. The cumulative compute cost scales linearly with the number of fakes, rendering large-scale identity flooding uneconomical.","stamp":1,"from":"poa1GRtRJY8Q2wFVB4FCy5jDV3PviULZfwCWyX2hjV1fxmjZ","nonce":2,"parents":["5be750a4f75d839c474c1840db12dc135d509f7fb0ac800b90cddf1ec073e8ba","f7a857bae4b6ea705d64f6b462340cdfc86d8ea8eae8687dd0416bcabfacbd73"],"ts":1792880083,"cid":"poa-mainnet-1","sig":"3baFVAvR2C6gT37xy5y2BsvrY6n76PbzmoxsLghHSDvpPGvdqNRk6dE5soZxX2rFR8PnWPSpHURgtHHC4Yzi5dSy"},"checkpointed":{"height":6509,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T03:10:17.551Z","checkpoint_height":6509,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}