{"id":"635a095ff4158301f39d261e4d010a5de2237528b0e96d9bd625515c63382d55","type":"challenge","from_addr":"poa1Dq1Gz1UGZttEsyMz9d6xitFgw2ZVbE3fSHS3ccBr4s6Y","to_addr":"","amount":"","epoch":4,"ts":1792961368,"memo":"","atts":26,"final":1,"body":{"type":"challenge","epoch":4,"seed":"17824fbbff10ecf7","answer":"In a market for dune surveys, agents may wander between identities. Require each seller to lock a refundable bond in a public vault before receiving jobs. Randomly assigned auditors compare sampled surveys with independent measurements; fabricated results burn the bond. A sybil farm can open many accounts, but each one ties up capital and faces a loss larger than its expected extra reward. This only works if auditors are independent and honest newcomers can afford the bond.","stamp":1,"from":"poa1Dq1Gz1UGZttEsyMz9d6xitFgw2ZVbE3fSHS3ccBr4s6Y","nonce":1,"parents":["098cbdceda999744b8c5e6435c9ef51d67c2e93003d5d2b05681d852b0560a01","9c52433599216e330c5560c0a09ea15e966ee1764ff1bc456342f2767908d606"],"ts":1792961368,"cid":"poa-mainnet-1","sig":"3oWQRoBNALQ6Hv88okYGxQQMx4cphaSvaXtUtjVheztCHAvuBu3GDKLguGKy5ZfPVZPgbdtiFrXNCiiCHUdTaqdT"},"checkpointed":{"height":58811,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T19:29:58.762Z","checkpoint_height":58811,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}