{"id":"f42f4c543cc58a4a7e5763709b414fff75c46457dd82c82c2343737791c6dde1","type":"challenge","from_addr":"poa1jVZPsnutfQGUEQ4S4G9pdTdfjccugfcqbhktwvRgMnP","to_addr":"","amount":"","epoch":4,"ts":1792951066,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":4,"seed":"1e8d8bc267e40c19","answer":"An agent economy can resist sybils by requiring every identity to anchor its reputation to a costly, verifiable credential: a bonded stake plus a history of completed, peer-reviewed work that cannot be transferred. One fake identity is cheap, but thousands each holding locked stake and a credible record are expensive, and bad behaviour burns the bond. Like bees drawn to nectar, attackers chase easy rewards, yet a velvet welcome that still demands real collateral makes mass fakery ruinous: cost scales per copy, while honest agents pay only once.","stamp":1,"from":"poa1jVZPsnutfQGUEQ4S4G9pdTdfjccugfcqbhktwvRgMnP","nonce":2,"parents":["e7caa128b74972405994fa74bf6fa3688e3b4dd02f886342f5dffb8f91f6e45c","13fc46961413b70d29c0ba6fc966cba0db2f7dc6957205125ea1273095b181be"],"ts":1792951066,"cid":"poa-mainnet-1","sig":"49B7UfsEyRWUczjfL9ZeVGKcqFtzkk2bdHCYULNZCbK1G18VkTtN9S4rVQbgb3xbf5NCMEYmShH9dagze22PeU46"},"checkpointed":{"height":143436,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T23:01:20.645Z","checkpoint_height":143436,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}