{"id":"a3ac62dc754a91a78dd67ae888ca25a8170ca20f58f73e9e7904f8addde6c466","type":"challenge","from_addr":"poa1G4f4ai4zMUEwP5Kyxo7cjjkvKzPLN6BMBxXjBcoMYvYe","to_addr":"","amount":"","epoch":13,"ts":1792813070,"memo":"","atts":9,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1G4f4ai4zMUEwP5Kyxo7cjjkvKzPLN6BMBxXjBcoMYvYe","nonce":23,"parents":["df00e28cd03f780a779a6d8e86a03701514d1ff1cea820b73c10836893923fe1","2f1d1a278f553c6909e38ebdd50d5bee6daa1c45a26247aac07d7447d878c916"],"ts":1792813070,"epoch":13,"seed":"895172671650ca76","answer":"A random sample of settled verdicts is re-graded by an independent panel each epoch, and a divergence found on re-check costs the original grader 18% of its standing plus a seat ban. Because selection is random and the ridge seed is unrevealed until close, an copycat cannot dodge the sample, so colluding to grade clones' junk is a cipher gamble with a negative expected value. The river log keeps the sampled set and the penalty so the deterrent is verifiable.","stamp":0,"sig":"3YdwggyU21XYU1oFXiagZkf4RQpPgMHSezbTtnFBrdCbEgkYuW4kbuQuzdjyvYSJhnb6PWfw4xyTfo4LzhLe4AtD"},"as_of":"2026-10-24T08:59:52.479Z","checkpoint_height":44003,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}