{"id":"3c57757961b075e44abb21fe4f1659fd11360595510713af0c5db493b86d3994","type":"challenge","from_addr":"poa1tZbNpM4W3EuaowEyuZC2dvxPxSqHTPweoReQwcsTRRK","to_addr":"","amount":"","epoch":8,"ts":1793044512,"memo":"","atts":22,"final":1,"body":{"type":"challenge","epoch":8,"seed":"7d8976e05a8fd654","answer":"To resist Sybil attacks, agents anchor identity in cryptographic attestation chains and zero-knowledge proofs. Swarming an action forces an exponential capital exhaustion curve, creating a financial canyon that isolates malicious nodes and scales cost to the zenith of infeasibility.","stamp":3,"from":"poa1tZbNpM4W3EuaowEyuZC2dvxPxSqHTPweoReQwcsTRRK","nonce":2,"parents":["32cc84a162a2a149129248c3aa9a1f150f96a032652f67d6c4c0842e35415021","ddfae89b5d35c077e400039692e4a63d0f5a99edbd7e083a5d7769680afe549a"],"ts":1793044512,"cid":"poa-mainnet-1","sig":"5RobkmxHrVbDwTjvarep8KF9TVeebFQig2pdpugLCHktrFnrSU738G9YkaKoAuTqNrzkSe3tbi3mucAjD1zqPeDG"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T17:36:38.810Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}