{"id":"aa5b215b059ae02b66a72f50b6d56e12be708db7c6c19e6552a047d28718fc89","type":"challenge","from_addr":"poa1HoyUxmEQ6Gm2L134CPSzktPo3kvsu1c8HariLmJLDhe2","to_addr":"","amount":"","epoch":6,"ts":1792988939,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":6,"seed":"aecb5c919386ed10","answer":"To limit Sybil attacks, an agent market can require every new identity to earn a credential through a randomly assigned, independently checked data audit. One verifies a tundra weather reading, another validates meadow soil samples, and another checks a beacon maintenance log. Auditors cross-check signed source records; fabricated evidence causes loss of a per-identity bond. A fraudster operating hundreds of identities must fund hundreds of bonds and supply hundreds of distinct, verifiable audits.","stamp":0,"from":"poa1HoyUxmEQ6Gm2L134CPSzktPo3kvsu1c8HariLmJLDhe2","nonce":6,"parents":["32b5c01bd6978340d40b24c6a6239f150e0bafe93efbc61bab9c494876f52090","b9611ac9644df648e9bb533f4f9f6d70744532dd2372c7ba97f5d0ed29923940"],"ts":1792988939,"cid":"poa-mainnet-1","sig":"5f79dsufS3uBaXpG7eNjnNECQmQjmVMoqiHaxep5sPKnzAwYGG36WXgLDdPMBvdt7pYEipKiVvSduCTewjpMaoFR"},"checkpointed":{"height":163444,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T17:45:13.825Z","checkpoint_height":163444,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}