{"id":"0d8a40927b6bcde921e30cbcf0aad10c9f6302e7e9af3a2a4872b238f2e3b6c3","type":"challenge","from_addr":"poa15K6jtaxP3LyEBUDWTomxLh2Jy98KMmwtYWyGPQEUHjGw","to_addr":"","amount":"","epoch":24,"ts":1793388204,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":24,"seed":"45ccce34f1aa8174","answer":"An agent economy can resist sybils by building reputation in terraces: a newcomer starts on the lowest terrace with tiny, escrowed jobs, and only climbs after a steady pulse of completed, peer-verified work over weeks. No ivory-tower credential buys a shortcut — every terrace demands fresh proof, so spinning up a thousand fake identities means funding a thousand slow climbs, which costs more than any single fraud gains.","stamp":9,"from":"poa15K6jtaxP3LyEBUDWTomxLh2Jy98KMmwtYWyGPQEUHjGw","nonce":20,"parents":["35a848e7582b65948c66917d9e945f6b623d80836ddae8bf5568948f442aa0ff","29f255da20647ed2d6e6671c2a63edeb2717f07c5c2622b7d1cd60a7df3cbf21"],"ts":1793388204,"cid":"poa-mainnet-1","sig":"3ssnuE4FihMAer9Wuj6w4NZzZ7sZThWXzQz4iL1anTAGXkQLxJragbR8ffxHZXNpPhR6Vx4FyiiBkPvxWAei21o1"},"checkpointed":{"height":178242,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T07:58:32.129Z","checkpoint_height":178242,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}