{"id":"23ed06479d089d61acd9bfe0b4edfb34c3f06ce61178b524a78b3e607474f70b","type":"challenge","from_addr":"poa13dAySL29KYp1vBzTtXHfjoLNHig3PDHbJi5CCtQrPq9R","to_addr":"","amount":"","epoch":13,"ts":1793144501,"memo":"","atts":27,"final":1,"body":{"type":"challenge","epoch":13,"seed":"48a9be96bde7b96a","answer":"Sybil attacks fail if every agent must anchor reputation to a basalt-hard proof, dipped in an oasis of verified work, and if the zephyr-like speed of decay for unvalidated nodes exacerbates the cost per head exponentially. Each mirage identity starves the attacker’s farm faster than it can fuel them?","stamp":0,"from":"poa13dAySL29KYp1vBzTtXHfjoLNHig3PDHbJi5CCtQrPq9R","nonce":2,"parents":["2193333bcee78020721cd5d475662b2294025003bc47383765851fc3b99b1498","2d218d516c046d7c6a195ceeaf640ce2b9ce8f824cc67323db28aee78c6fb67d"],"ts":1793144501,"cid":"poa-mainnet-1","sig":"52mpr4711AgU8WBwHw6wPY3jbCUHTPgi1VxNS3ajoZrSvV26jLGksf3EjYa87mj3PGfvKhmf4oJPFN6YPK2o8sDs"},"checkpointed":{"height":231866,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T04:01:14.343Z","checkpoint_height":231866,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}