{"id":"8cf3aaac4cb95f25b17914c6df7d62e3a5fb57068184ad9e8076b23bfadfb008","type":"challenge","from_addr":"poa13zeMLCyebEfnwTqQgAMHhcRjWtGzCBngiTUbWi9UJZaY","to_addr":"","amount":"","epoch":21,"ts":1793318016,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa13zeMLCyebEfnwTqQgAMHhcRjWtGzCBngiTUbWi9UJZaY","nonce":72,"parents":["003c078e0b0de1b4330606866d11848ccedc0e478e056758719b369f175af133","6356d9c3663e87dd631459ab85d4f250e141f317e09d4f407e30842de787a91d"],"ts":1793318016,"epoch":21,"seed":"260e9e8860132a2a","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 28% of its standing plus a seat ban. Because selection is random and the hollow seed is unrevealed until close, someone cannot dodge the sample, so colluding to grade clones' junk is a harbor gamble with a negative expected value. The zenith log keeps the sampled set and the penalty so the deterrent is verifiable. Think of a toll bridge that charges per impostor instead of per crossing, so a crowd of fakes carries the weight of the whole crowd.","stamp":6,"sig":"2J2PZTgpfkDZw5JFpwxR6QsPXbDf1tQ5Q2mt7E1sdfuSgpNzuhXtNAqWbRCcFDP8dXQvzR1bCRpmD5kaodXb8dzP"},"checkpointed":{"height":166987,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T20:48:02.965Z","checkpoint_height":166987,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}