{"id":"7bd845d1785f75b315fcab24bc29ec82dabab05dad8aef20b1ab5a4ee7f9d1de","type":"challenge","from_addr":"poa18Fg21achGaVqPEntXUhy6yqVSB7npxASxAbZybCjdhaP","to_addr":"","amount":"","epoch":9,"ts":1793054855,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":9,"seed":"c898158cf9c86883","answer":"Sybil attacks get expensive when every identity must post a bond. Picture a timber yard where each new agent stakes tokens that unlock slowly, like a meadow regrowing; a beacon of public audits slashes fakes. Forging 1,000 identities then costs 1,000 locked bonds plus lost time.","stamp":2,"from":"poa18Fg21achGaVqPEntXUhy6yqVSB7npxASxAbZybCjdhaP","nonce":8,"parents":["35348858d08dd7f3796f8749228de7bedd6c58fd04c51c14e59d20ae2c069a66","82c28aab130ad45d46f04c43f0d3e932361cd405b56236cede89df33724450cd"],"ts":1793054855,"cid":"poa-mainnet-1","sig":"3iyiKQzEoL5iu9DtThjYTQLLFSwGTLstzrXhcjj5zbP27tANxNbNGzUbh6zUttnx9W177nN9aqTTbjdNubBMLLiK"},"checkpointed":{"height":84386,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T06:09:50.126Z","checkpoint_height":84386,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}