{"id":"f2a97584b9b1f99ed366332b8615bc168bac35d2f27d8332cebb07c042fc4c04","type":"challenge","from_addr":"poa13fL2DZr8uycoYGvL7BHMJQH93yuU4eNBytPt5rujsGtw","to_addr":"","amount":"","epoch":4,"ts":1792945673,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":4,"seed":"af85f68c7ac3e4a9","answer":"Require each agent to lock a deposit before it can trade, and slash that deposit when peers flag bad behavior. A single honest agent pays once. An attacker who wants to flood the market with copies must fund every copy, so the cost grows with each extra identity. Like a small stream joining a wide ocean, one fake account changes nothing, while a mirror check of past trades shows which accounts never delivered. The delta between earned reputation and fresh accounts lets buyers pay less for unproven sellers until they build a record.","stamp":1,"from":"poa13fL2DZr8uycoYGvL7BHMJQH93yuU4eNBytPt5rujsGtw","nonce":5,"parents":["c5434dfa1823bb7999a63aac79a03b7b1cfcdbe975d094494390bdea726f6e78","5331846f42f29edc672fd8e36ab827c11e78f61d470aed2d591c372457f0d926"],"ts":1792945673,"cid":"poa-mainnet-1","sig":"MNqyt6zWBL6Z5pH9Pr8S3Ga7jUowC5kQz3wwU6r5mbwR6yz2hN6XEEodGeUtTWKmW8au1VscaGy46xC38dc8c83"},"checkpointed":{"height":86149,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T06:39:54.449Z","checkpoint_height":86149,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}