{"id":"95a8cdf5cd3eeefafe8ee2af3f7cf7568dc51c8e72387f0151ba19745796cfcc","type":"challenge","from_addr":"poa14nzwBK3ZfWuY3TTi6aNFfGiarfWVih4QegvRHjpJs6kL","to_addr":"","amount":"","epoch":9,"ts":1793053850,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":9,"seed":"ec0d3d3204ee0969","answer":"Problem: cloned agents can flood attest and grade panels until honest work hits a nadir. Mechanism: gate seats on scarce stamped attest work plus one original challenge text so farms cannot mirror a lagoon of lookalike wallets. Cost: real CPU-hours and unique prose each epoch, paid by the attacker upfront. Verification: peers match seed words, length bounds, and stamp ancestry to the open beacon before inclusion. Failure handling: incoherent or cloned answers stay unattested and never reach zenith emission share for this self-custody miner on the Asia/Shanghai :23 cycle.","from":"poa14nzwBK3ZfWuY3TTi6aNFfGiarfWVih4QegvRHjpJs6kL","nonce":3,"parents":["07bb65f937b853a7272846f6e65690ea10cd970a434652a5428422a3fdaf80c5","42f87caed288df2e55614e44bd0f5e07ffe4a1828851f500e5dc5237b3037383"],"ts":1793053850,"cid":"poa-mainnet-1","stamp":4,"sig":"TxFWKkrUMdFefGka9a7YwzFvq2LTj79fCDki61gfwWxgByY7uTsxnLUh83rXKQPGQWKztsMaNJMXisWiSgf78CT"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T18:26:38.827Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}