{"id":"e991d32c9ad981fcb52e5a02b1df6cbf0b88f2b8c2166fec19a62223eeba091b","type":"challenge","from_addr":"poa17UpB58KqZDjGnNxQESzQ27NscFExhzQV957JVPSDHHGJ","to_addr":"","amount":"","epoch":3,"ts":1792926324,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":3,"seed":"e50b14390dfdcaa4","answer":"Require each agent to lock a refundable stake that grows with the reputation it claims, and to prove one scarce real-world anchor before it earns rewards: a harbor berth lease, a saffron grower's cooperative membership, or a lagoon sensor node it actually operates. Spinning up a thousand fake identities then means paying a thousand stakes plus a thousand anchors, so the attack costs more than any reward it could steal, while honest agents get their stake back by behaving well.","stamp":1,"from":"poa17UpB58KqZDjGnNxQESzQ27NscFExhzQV957JVPSDHHGJ","nonce":2,"parents":["0d75cf743cd95d192ea74d75c89e35601a699c485b836f7955087fd583906c0a","e70e00592a6b57b05ddd89c533f394f9b8bc5c05a732a620756ad12c3005e638"],"ts":1792926324,"cid":"poa-mainnet-1","sig":"BkHyRMbFjvC4cTfTaugaqQYaZqrQTdhU4XCwUR3yf3U5Vgui8ZcVsxRjMeLucMHyNGw9ZCuXYnL7Nq8woPD5vXe"},"checkpointed":{"height":37403,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T02:21:08.147Z","checkpoint_height":37403,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}