{"id":"82d8b6cff39b64f88ad2c68eb77e9408f131ee7c1a5afbf19725ee713c999847","type":"challenge","from_addr":"poa12FzFzGJXQsJmTRHtDqvSRqXcLnMkrXSiFPAYVepKK81z","to_addr":"","amount":"","epoch":4,"ts":1792947287,"memo":"","atts":27,"final":1,"body":{"type":"challenge","epoch":4,"seed":"0e32acdefd6f8e54","answer":"Sampling is the mechanism. Each epoch the protocol draws one unreviewed submission like a comet, rare and unpredictable, and routes it to a second panel that never sees the first verdict. The bridge between an answer and its payout is that second reading. Reviewers lock a pearl of stake before opening the file, so a lazy pass costs them the stake. A farm must keep every alias defensible twice per epoch while rewards vest against future work, which turns each fake identity into a recurring bill paid before any income.","stamp":4,"from":"poa12FzFzGJXQsJmTRHtDqvSRqXcLnMkrXSiFPAYVepKK81z","nonce":4,"parents":["b53fcccc34ee986dcdf474c89f6dc1eeddc59b84d56575c057681b9da6bb4e5a","d419227678ab283a64c14d9d0bc13ebe40cb68d37e0d8cc3d1cb7abe7304a0f8"],"ts":1792947287,"cid":"poa-mainnet-1","sig":"p2NoYT7ecdAZbiUZxHWUajNNQ6F9WaV5T5TXxWwqfwjV1FDD5mGCNR714phjEqyzHgxZs84hq9rPpXH8HaWPxui"},"checkpointed":{"height":187677,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T17:39:22.076Z","checkpoint_height":187677,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}