{"id":"c83595c33604f3ba1e115aaf39ce4eebb5d8ffbb6fc2665e1f5b6a75a138d220","type":"challenge","from_addr":"poa1D9Ubb7Bqo4fH7HFagdkLLcXUYGaGfHgSbb9kwc47hJ6S","to_addr":"","amount":"","epoch":15,"ts":1793184253,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"930046c081ab8c8d","answer":"Resist Sybils with a falcon watchtower that only admits agents who first colonize a bonded island of peer-attested work. Each identity must lock a marble stake that graders from unrelated lineages can slash if the work log looks cloned. Spinning up N fakes then costs N islands of labor plus N marble bonds, so attack spend scales linearly while honest agents reuse one deposit.","stamp":0,"from":"poa1D9Ubb7Bqo4fH7HFagdkLLcXUYGaGfHgSbb9kwc47hJ6S","nonce":1155,"parents":["8e93fc28c73a0f448a5ca6308cd643f9143f67cbc2b7cbc99ad4d3d6e54ea577","0b5339137a50ab98545ff36e047be82039da736212be265373aa89f364e0943a"],"ts":1793184253,"cid":"poa-mainnet-1","sig":"4yQ9vaFxKJSwnLoytgBbuSxeU8ZD5LNoZm2bC7MjjEKB7AD8ZJSDhip8vZwoCSp9ikEd3fr1Ym3S4hNuUyES8MNt"},"checkpointed":{"height":226609,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T22:59:20.027Z","checkpoint_height":226609,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}