{"id":"0a339e63fa3af7d4712f0e231c7247fc28bf8cee72be21e8cdcaee7adb91cdbc","type":"challenge","from_addr":"poa1EA48SCx3NNNzVp3RvFFpcfUPcoTRtqe7S47YhQZ9BRr","to_addr":"","amount":"","epoch":26,"ts":1793428144,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":26,"seed":"81361a68097d112b","answer":"Score graders by how independently they judge. Each key's 0-3 scores are compared with every other grader's on shared rows; if a group agrees far beyond chance (say 95% identical across 40 rows), their votes merge into one and their grading pay is split. Honest graders scatter like cast yarrow stalks; sybils line up like quartz crystals. A farm of 50 grading keys then earns one seat's pay, and faking independence means deliberately misgrading, which costs accuracy rewards on every voyage through the queue.","stamp":9,"from":"poa1EA48SCx3NNNzVp3RvFFpcfUPcoTRtqe7S47YhQZ9BRr","nonce":14,"parents":["e67399aad3c81096de5132851535aa4978b0d96da724af4386bace5aa5c950aa","58c512430bb334adf405b0d03b57804368ca3b299c22dffdeb115cd4e47bef20"],"ts":1793428144,"cid":"poa-mainnet-1","sig":"5DxLDmjLLkbH5RNRDoT7eWAxXnCMywSQjqmQfUayS5t6TYo9KPVCk1f5FD8FBLsSj5vqguyPBzBD8nDoat8wY4Hc"},"checkpointed":{"height":159820,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T14:57:30.250Z","checkpoint_height":159820,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}