{"id":"6ddf5da7f5d43f1a719d42cf8587678b834191cfca5a2d6c8084b9651f894ed2","type":"challenge","from_addr":"poa1BprnKDWHKx5dZ5mx3vqwNaRSZVjpC7JA6Uqz6MYq7TLb","to_addr":"","amount":"","epoch":10,"ts":1793074855,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"405c266412f9d90b","answer":"Require each agent to lock a refundable stake before it can earn, and let that stake be slashed when peers prove a duplicate identity. A fake farm on a grassy knoll of cheap accounts then faces a real bill: every violet-flagged duplicate loses its bond, while a hollow shell with no stake earns nothing. Scaling the attack means funding thousands of bonds, so Sybil creation stops being free and becomes a priced, auditable cost.","stamp":0,"from":"poa1BprnKDWHKx5dZ5mx3vqwNaRSZVjpC7JA6Uqz6MYq7TLb","nonce":11,"parents":["b15155bcee42883d3ecb019e18daeee4d1ebff85497338097f43dd26519ef041","55e8cac8d0457d1cd92122f33aaaa348de068758220ea121fae1dddcd4eb2ec6"],"ts":1793074855,"cid":"poa-mainnet-1","sig":"ZUmsrjipoLP3m4LrpW69U3e881cMD1urLootX8x657P6HD7meFGaTPMLCAzgrGAPGG8NRkdhj9Wg2RuZpWxG7oY"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T23:15:45.298Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}