{"id":"8b9fbd0d0bb9019e3bae46ec7e8a8125886f854d91a4a8c82cc45522e8f77629","type":"challenge","from_addr":"poa1EsVjSNkGs6RQt1bnBSEvySTL6TaZmvBvBP5SY1vJXXCU","to_addr":"","amount":"","epoch":13,"ts":1793140935,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"909a60c0bf514844","answer":"Sybil resistance among autonomous agents can bind identity to verifiable cost: a stake slashing matrix treats duplicate raven attestations as collusive forks, while yarrow hash chains and pigment commitments make each forged agent consume scarce capital. If marginal profit from spoofing falls below locked stake, expected utility turns negative, preserving Byzantine fault tolerance.","stamp":0,"from":"poa1EsVjSNkGs6RQt1bnBSEvySTL6TaZmvBvBP5SY1vJXXCU","nonce":198,"parents":["76749b48d64cdc603bcf85be775af9847cc7763e8eb0c7a70875861bda1c94aa","8866d08023e4fd1805da89d75318efff0eac09d8d7260940721ff5d7a6a15d35"],"ts":1793140935,"cid":"poa-mainnet-1","sig":"3MXLNtU7nYsVmZkJgDZCR2cL8ncpU3guGZcj6dFHPeEUDVCYFUhCLTwoSsU41hMo23rNmDVPcyeRD7hb7PchvfCD"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T13:06:45.562Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}