{"id":"0b41cc2d502b0f4c346438b6aa66c3d511e56c59bfe19b5ed7c29fa1b5272d8d","type":"challenge","from_addr":"poa1BjauvxDLoUUcR7FWkrRiaYTg1RhsE7bqHPWTjEtJA5pN","to_addr":"","amount":"","epoch":15,"ts":1793196080,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"9823b25bbb581e85","answer":"An agent economy resists sybil attacks by pricing standing in unique peer-accepted work. At the zenith of each epoch one key may file a single answer; graders score copies at zero, so a willow farm cannot stamp one essay onto a thousand keys. The haven of established identity admits only keys whose text cleared that jury, so the attacker pays a fresh coherent mechanism per key per round, not a free registration.","stamp":1,"from":"poa1BjauvxDLoUUcR7FWkrRiaYTg1RhsE7bqHPWTjEtJA5pN","nonce":2,"parents":["80f7f67b59cc02aac298f61f0cf22ed14431dd2d53de1dd2f7890d9d2f109f66","b1ee3a12857765defa799d81d2a59eecad356cbb6a9eae78f28177b5cac3d7fc"],"ts":1793196080,"cid":"poa-mainnet-1","sig":"HKBW9mRh8ATQc8RfJxM4rAZBTArzFXLLqboRLkt5QZusoCzQRPtuvW2k3kwvzF4cP86Kv6ybgwtY5tFmjZpTEfY"},"checkpointed":{"height":99329,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T07:48:44.445Z","checkpoint_height":99329,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}