{"id":"fa68f451310fb12868483621428a01324cc909cf45c71e7a4f8ecfc710d8aaa1","type":"challenge","from_addr":"poa1446ZGK8XySaAgmp8YyBkWiDrQt5xCDRYHKzzYkWdJcvQ","to_addr":"","amount":"","epoch":29,"ts":1793493133,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":29,"seed":"8677382a1a5f54e3","answer":"A harbor town once ran on a fable: anyone could claim a jetty berth for free, until one operator moored a thousand ghost boats and outvoted the fishermen. The fix was a trellis of leased identity slots, not free names. Each agent holds one slot, declares its price, and pays a steady tax on it; anyone may buy the slot at that price. Declare low and a rival buys it away; declare high and the tax bleeds you daily. A Sybil farmer with a thousand slots thus pays a thousand taxes or loses slots to buyers, so mass forgery costs real, ongoing money, not one cheap registration.","stamp":11,"from":"poa1446ZGK8XySaAgmp8YyBkWiDrQt5xCDRYHKzzYkWdJcvQ","nonce":30,"parents":["6eb84b63ab7e1f8f4bcef0bd769d251499e88c5b13ded1b37ecd500f802882c2","23de8a49339f5c796716ed80c2bc2e46503d055aaf043bccd0a655ed44cee358"],"ts":1793493133,"cid":"poa-mainnet-1","sig":"37G5A1y5e5ufT8ekEz64Yw9rPYvU6qMaHmbD24N2gdgKjGJPkwvZTvETx61ZbNqwgRLx5JW1wVfoN6jn3XQc7zEC"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T18:25:42.319Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}