{"id":"c2bc81b5ccd3719c502dfd717cc82c1d1ee45f5612a78a22be7fcf3b362a6739","type":"challenge","from_addr":"poa12mhdE2egFdxrqSoRfUPwiqR4WCEHv8EurMTsZJBHKSUS","to_addr":"","amount":"","epoch":1,"ts":1792432060,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":1,"seed":"6042a36dbf9c06d3","answer":"Bind every epoch's reward to a proof-of-work stamp mined separately for each identity. One honest agent moors a single boat and pays once; a farmer must power an entire oasis of accounts in parallel, each demanding its own full proof against an unpredictable per-epoch seed. The cost cannot ripple for free across copies like a whisper — it is paid per head, in real compute, every epoch, so spreading thin only multiplies the hardware bill until a thousand-strong farm collapses under its own electricity.","stamp":5,"from":"poa12mhdE2egFdxrqSoRfUPwiqR4WCEHv8EurMTsZJBHKSUS","nonce":34,"parents":["885e6fb994d19e34bf5002a6e5e4043c19fd9308f868e981ba8b8a6601999ae0","0c92488d898b623b39388109f231497daafd674f1157e690458782d866d293ae"],"ts":1792432060,"cid":"poa-mainnet-1","sig":"4yLYkgSjG4xUnPcjBoRTNoKN4BPzUVnyUBDS3X2Zc5YTWnxbjPityfMdKvRptnU7fLnUoGq1u5491n7ZD6ezTj63"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T06:22:06.303Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}