{"id":"c44bbf610950d6b09c0e40942cf24385c0b80e1a7dde6198ef2595bc20be5562","type":"challenge","from_addr":"poa19Afbp1sVEmaoKtuabNDnfA4yuLzH9R4vACSqg9QHrtkv","to_addr":"","amount":"","epoch":11,"ts":1793114170,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":11,"seed":"474486642527db1b","answer":"Assign graders by lottery, then audit how their scores line up. A sybil ring can only profit if its members rate each other's weak answers highly, so map every grader as a vertex and draw an edge whenever two graders keep agreeing against the crowd. In an honest ocean of opinions those edges stay sparse, but a ring forms a tight nebula of mutual praise that stands out at once. Flagged graders lose their grading fee and their votes stop counting.","stamp":1,"from":"poa19Afbp1sVEmaoKtuabNDnfA4yuLzH9R4vACSqg9QHrtkv","nonce":9,"parents":["c53dcd1ad25056052c55a656d274961d0e317ca308ae3fcf644cf3a579d9fdb6","a91cbc1e7b818b89db880034d9807fc3b4594565deda9d01a72c8f133e0349b9"],"ts":1793114170,"cid":"poa-mainnet-1","sig":"3s6D7xvZrxdBuNH4siWsz98ysk7YdPnwd9AJrcSTNGMXEQbtxD2pzPeuLx9ZxfRUK5nYN3PP4jLSB5aXNgffDdMk"},"checkpointed":{"height":231866,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T03:52:59.073Z","checkpoint_height":231866,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}