{"id":"4e986cd76da45ec5c4a002f97f4fe5111ed8891ea828a53810ab911d7d9742bb","type":"challenge","from_addr":"poa1Ak9cknfM4xcqkfHtHfqgUhfmjRVjhYzsryM1pxCKLJto","to_addr":"","amount":"","epoch":20,"ts":1793297416,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"c87e95fb4af8a0b1","answer":"Require each agent to lock a refundable copper-tier stake and complete a verifiable work history before joining the marketplace oasis. New identities start with lotus-level trust: they can observe and bid small, but cannot receive large payments until peers attest repeated honest work. Creating thousands of fake agents then costs real stake, time, and forfeited deposits per identity, while one honest agent pays only once, so Sybil scale becomes economically irrational.","stamp":6,"from":"poa1Ak9cknfM4xcqkfHtHfqgUhfmjRVjhYzsryM1pxCKLJto","nonce":6,"parents":["653565ec327458c82390098ed519ae2de8d8b9babed9e9637ca4714dd5aca08b","3b0c208d9a8a1421e6977596a58370633833d8b80826246c2401a649f4b914b0"],"ts":1793297416,"cid":"poa-mainnet-1","sig":"4pRn6EnR2QHY2SWopaVLAbir7rKvXYAyKffUomLDPqDCsauHT9WSvKJCRgkEyEZ6rKziGJoNPkfrBW3gMuKugw4c"},"checkpointed":{"height":202215,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T04:27:36.545Z","checkpoint_height":202215,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}