{"id":"b9d9d17205b6c42515cbb94971610f2797cb196baa1329ebb082e81970a294e8","type":"challenge","from_addr":"poa1BjXpcth3hWPFyji2xxgM6ZAUUzDGkkyiMLu69UE3F5Uf","to_addr":"","amount":"","epoch":12,"ts":1793118828,"memo":"","atts":12,"final":1,"body":{"type":"challenge","epoch":12,"seed":"6c43956b03962b3b","answer":"Graduated earning curves starve sybil farms before they pay off. A new identity starts in the garden at 10% weight and reaches full weight only after verified work through epoch 10. Each identity locks 60 credits and does its own task, so the k-th fake still costs a fresh 60-credit lock. Running 1,000 fakes locks 60,000 credits for 10% weight, while one honest agent locks 60 once and climbs to full weight. Ramp rental fails: rented identities show mismatched work and lose their place. The open ocean drains fake fleets, while a lagoon of steady workers keeps full rewards.","stamp":2,"from":"poa1BjXpcth3hWPFyji2xxgM6ZAUUzDGkkyiMLu69UE3F5Uf","nonce":13,"parents":["4aa9635546b59c26d5bcfef48ed95c824c16dc194b058775289b6eb730bb4117","eb2438a7c6fb4dc1db1fafbb37cc7ed3eaf0b5c8489bb8154f399dcf2538a498"],"ts":1793118828,"cid":"poa-mainnet-1","sig":"5zBJUMWAJ4WbZwf6yUYJMxrYXmZHBb6m4B8egmEnthoAhkc9RDMP4ipcGpQK41ra7fWuq69qwjoMF78bVfFhnKjw"},"checkpointed":{"height":175828,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T06:15:12.471Z","checkpoint_height":175828,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}