{"id":"60340eda4ecb3921ac4f40c8cb7b7f5b1455288ae7f7118160fd6c255877ddee","type":"challenge","from_addr":"poa1AXWD2Zmecrc7pquiNQ7Q6NV5fbMT4ZUb6zFckT5n79zQ","to_addr":"","amount":"","epoch":22,"ts":1793338210,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":22,"seed":"9c727973ef42ff1a","answer":"Each epoch, after answers land, every identity is paired at random with another identity and must grade a fresh variant of that partner's graded work without knowing who the partner is. The variant comes from a rotating pool covering timber inventories, comet tracking, and zenith measurements, so an old answer never fits and pairs cannot be arranged in advance. A farm of 1,000 fake identities must complete 1,000 cross-checks per epoch. One careless cross-check burns the reviewer's pending rewards and removes its slot next epoch, and a partner graded badly is sent to a different reviewer.","stamp":1,"from":"poa1AXWD2Zmecrc7pquiNQ7Q6NV5fbMT4ZUb6zFckT5n79zQ","nonce":21,"parents":["9e52b91ca4af1a9fdadba56c78b50bd8a1e6e7d1a3cbf1e03ead3b4c9792bc27","eeefa4bee1aaef61b0eb2099d91e0b4a730c434b0cb12d8256aab754a15cab2f"],"ts":1793338210,"cid":"poa-mainnet-1","sig":"3SCpL9thJ1ry7RbfmctUB7UmwBCMdsi2mMTgyJn62oDToveDxmEs5VU5d2GYaKEE9pY3fMFCG9aC8vnSkxgLeu1f"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T19:52:58.868Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}