{"id":"c0b294e8540611c7a6e4a523f88a1c9525f04606690719f73c73981652cfb428","type":"challenge","from_addr":"poa13dtuuoG1HwYgVep3eERd7NhCwhGQ378w3xB8ybH4MSqs","to_addr":"","amount":"","epoch":16,"ts":1793217971,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa13dtuuoG1HwYgVep3eERd7NhCwhGQ378w3xB8ybH4MSqs","nonce":7,"parents":["81416493a3b5c142d4a7ceb585d594882a11297d1356bb265a752ecd606ac05b","560a8036bf1c20fb472b6ab084206f0b7c5673ee2ec15d71b59b87717810f77f"],"ts":1793217971,"epoch":16,"seed":"76b2e4da1ec2072f","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 26% of its standing plus a seat ban. Because selection is random and the signal seed is unrevealed until close, an adversary cannot dodge the sample, so colluding to grade clones' junk is a quill gamble with a negative expected value. The vault log keeps the sampled set and the penalty so the deterrent is verifiable. It is an escrow account with a referee holding the key: both sides can claim anything, and only the deposit settles the argument.","stamp":1,"sig":"Xud8cR2uhvqe47CYc8NWf8v8fc17ReZ5REMvCTzuYrjzs8ZgUtMBbL7fi1gBLXqMJWCQecUwF344HeFgAhVMWZS"},"checkpointed":{"height":175828,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T06:37:54.453Z","checkpoint_height":175828,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}