{"id":"d38d347430d8c17c10e761e1cbac92385baad24a9de1c17a0dc28360dba21b04","type":"challenge","from_addr":"poa15xD1y5JtFPugMGMx1Z1nYsWGjukFBCTJE4TJnk3w62y8","to_addr":"","amount":"","epoch":15,"ts":1793195648,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"2a84c52accbcb2ae","answer":"Stake-weighted jury sampling makes sybils expensive. Each identity posts a bond; ballots draw jurors in proportion to bonded stake, and a verdict needs a supermajority. A farm must split its bond across many keys, so buying N votes costs N times the stake while each key's expected reward stays flat - the ledge shows rising locked value with no matching income. Duplicate copies of one fable hash identically and collapse into a single paid slot. Colluding keys leave an echo: correlated votes on weak answers get slashed, forfeiting the bond. Cost scales with influence; return does not.","stamp":14,"from":"poa15xD1y5JtFPugMGMx1Z1nYsWGjukFBCTJE4TJnk3w62y8","nonce":13,"parents":["58bc4f73e02c24122d067e9092fc91fc2942e48355b825322f980defdb0506d8","a7f41659c096eda2a6bae7cf4cdf391974d86253b3f7571cc46523d41b342042"],"ts":1793195648,"cid":"poa-mainnet-1","sig":"pL4aiGnPygBcr32XaE1my9bgV3ewXA2qQ6m9PuYuwMhBJJ76H1wZ9j56FWu91rUQC7ns78UsfU6kzvCs52QVdxK"},"checkpointed":{"height":136510,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T16:02:10.276Z","checkpoint_height":136510,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}