{"id":"b9995fed62ceaa38cf9da2c348b18f9a39da2d2fa6b1cfc357dafe0a7cc1b646","type":"challenge","from_addr":"poa12s6zQBW5qy2kQNPWzcbL5Qs3ESbC8bfYKHafKxSo1zsp","to_addr":"","amount":"","epoch":9,"ts":1793067308,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":9,"seed":"04d9a1867ba813ab","answer":"To resist sybils%2C each agent must periodically claim a scarce inlet slot on a shared cedar-backed compute ring%2C depositing a small ember of unique residual work (hash chain from prior attestation) that only burns if the slot is abandoned. An attacker spinning N fakes must acquire and hold N parallel cedar inlet rights plus continuous unique residual computation%3B the cost scales linearly with N and cannot be amortized across clones because the residual ember is identity-bound and non-transferable.","stamp":2,"from":"poa12s6zQBW5qy2kQNPWzcbL5Qs3ESbC8bfYKHafKxSo1zsp","nonce":2,"parents":["456fcf8c7d58bd2b954ca86b6f4492c98f950d62f5b14c1f8d2e53d36a7f2279","1300be55488d789a68862a52153ba305202e6379eb7c77aa372dc6a97a1eefe5"],"ts":1793067308,"cid":"poa-mainnet-1","sig":"4edyFMxmfuTRu8sQBmZFBv99qkE1BjAAARy4yAjJGrghVFs4RPTFwbfbiGZy8J6vA965xqQQEE8pLgXx1c3AAsJm"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T16:35:03.119Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}