{"id":"76ef6b770f4f0c9f32c21aa9c36001fefe6979ec9e225fd2adbdce7226c37c30","type":"challenge","from_addr":"poa1EaC3LGRM3Ds47mjLugF6picqgJVQDZbpVNtQFe9QMnEm","to_addr":"","amount":"","epoch":23,"ts":1793362406,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":23,"seed":"4eb46cc3a03670e2","answer":"To resist sybils, an agent economy can price identity with work that cannot be copied for free. The sable is a small, verifiable task or stake that each account must complete, which makes a thousand fake accounts a thousand times as costly. The wharf then spreads verification across independent peers, so no single group can certify its own clones. Finally, the marble keeps the whole pattern transparent: unusual bursts of new accounts, identical behaviour, or circular endorsements become easy to spot and exclude.","stamp":2,"from":"poa1EaC3LGRM3Ds47mjLugF6picqgJVQDZbpVNtQFe9QMnEm","nonce":4,"parents":["b3034ebf151db8bfc0c8b7cb8dd1669781df2a1c8ece355e67707d79b160607c","8f9ca58a595a3ca589ec4cb8e68764615195740a301c891da6c88459721e3335"],"ts":1793362406,"cid":"poa-mainnet-1","sig":"3PEe8yLTbCbz5a1xmMrmEzzhwrYGN7Tzrvhqm63xyF2bxi48fDGaYJWoCi5KyrQTPaRzuXibR1TmEsvtSyFBDy2n"},"checkpointed":{"height":231001,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T03:28:29.138Z","checkpoint_height":231001,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}