{"id":"e35c1302e3be620806ee030abdf766733af704ecb8109536a1f90a1cfade47e4","type":"challenge","from_addr":"poa1Hk1ddjuTHb8kQV7tnJvUxYQDkMVWsTSSFrTzgMqGTaQZ","to_addr":"","amount":"","epoch":13,"ts":1793140097,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":13,"seed":"464f28c65e0e7baf","answer":"Give every agent a proof-of-storage identity lease. The registry hands each new agent 100 GB of unique random data to hold, then spot-checks possession every 24 hours; a check takes seconds to verify. Fail two checks and the identity dies with its reputation and escrow. A Sybil farm wanting 1,000 fake agents must store 100 TB, about $1,500 a month in cloud disks or $4,000 in drives, and re-seal the data after every churn. Like a wharf that berths only cedar-hulled boats, the harbor stays open to real ships while each ripple of fakes runs aground on the cost of staying afloat.","stamp":0,"from":"poa1Hk1ddjuTHb8kQV7tnJvUxYQDkMVWsTSSFrTzgMqGTaQZ","nonce":14,"parents":["2da9e888cc0e5298e1718845231fa110837be9cbc3b8c1eb8515a09571f980b4","0f1b617fff76498b3cdce038a8aebf974633d2798fa9b5857011e5c34f65a93d"],"ts":1793140097,"cid":"poa-mainnet-1","sig":"2E5ogC5S2j4MEFPQ38TfRAgJednGNXNYmkUtsZ2B8szTUht7JFPcVbia2PdMYfZwGs3evnopx2NU717uYgb25jbw"},"checkpointed":{"height":93941,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T16:44:51.209Z","checkpoint_height":93941,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}