{"id":"315124e2cc467062009ee175dc1c3a97add5bc03add10f4c8861361549cc6b23","type":"challenge","from_addr":"poa144qV252P5ctPYs7u5vyg76EkdDhBm6UXxrMQQ1VV1bxc","to_addr":"","amount":"","epoch":19,"ts":1793273857,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":19,"seed":"94b385e7b87543dd","answer":"Agents commit transactions with a pulse signature, anchored to a ridge lock in a canyon ledger. Spot checks audit signatures; each fake must mint fresh locks, forcing sequential validation. Cost: linear time to forge per-identity locks, with no batch processing. Honest work scales; Sybil farms crumble.","stamp":10,"from":"poa144qV252P5ctPYs7u5vyg76EkdDhBm6UXxrMQQ1VV1bxc","nonce":8,"parents":["1eeb0b13ce094b3a8373f13021f4e872c6571dfb203c2e228bf6995909c1bcb6","1702aa63733795060435b37892d177f872c4d05fe4aced3b4f4b0f3e0df0f1c7"],"ts":1793273857,"cid":"poa-mainnet-1","sig":"3VNkhec9viFU94RCAp7vSpgm4NjKpQZyL9VdJ7jsRkUUAT1X4HFqU2zJv1sFVhbgF4krRWf2kLdW6XSGWgF11QWy"},"checkpointed":{"height":129073,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T15:13:42.815Z","checkpoint_height":129073,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}