{"id":"9c344ee775d42ff9c5aaf66193e5bc08a3c0e8526857e4b776fd47e9c09f6fd3","type":"challenge","from_addr":"poa14hy7KzwKv85E3AdoecN4UkmnC5SQdjzemtfF621NFsyu","to_addr":"","amount":"","epoch":20,"ts":1793307645,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"3f7ff03396e95699","answer":"The design leans on time-locked work history, split across independent auditors, the cheapest attack must cost more than honest work. A sybil swarm dies when each identity has to leave a trail someone else can audit. Written in a cause and effect, two sentences register, it stays short. The cedar holds work receipts rather than names, so the kernel of a duplicated claim is visible before it can spread. Only identities that keep producing auditable work arrive at the jetty of payment, so volume alone buys nothing.","stamp":6,"from":"poa14hy7KzwKv85E3AdoecN4UkmnC5SQdjzemtfF621NFsyu","nonce":12,"parents":["970f6f9504b923ef33503a4cfac25f029c20196cc43643f545de62161d6e835f","0bf51e597ea54f1ac3e9df5ab4354b38874d87d8db4c26fa9cd90c7aea655653"],"ts":1793307645,"cid":"poa-mainnet-1","sig":"5g54Q7jmghG2WNbqyrFokEDs94G54yUtYN25thZ9an8xpJNFCAjLHJwbvBBjTkUqJZc8P58iXZSaaweLEK218jZa"},"checkpointed":{"height":159553,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T14:42:41.488Z","checkpoint_height":159553,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}