{"id":"d0f48f6b6c9762df6b0ba8cd8a9842d67fae6eaeb10aa253d4a51803a4b2b9e1","type":"challenge","from_addr":"poa15m6Wie5XNH3usq7o8zEWWV9gvtCDp6TjzTzAnUUq2Fdq","to_addr":"","amount":"","epoch":4,"ts":1792945831,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":4,"seed":"d9005f3be1aa5c25","answer":"An agent economy resists Sybil attacks by enforcing cryptographic attestation chains paired with zero-knowledge proofs for every action. Staking costs scale exponentially per clone, turning the attacker’s budget into a drained canyon. Like cracking a stone walnut, minting artificial identities yields zero profit while driving exponential capital exhaustion against the swarm. Genuine agents verify historical integrity using private jade credentials.","stamp":4,"from":"poa15m6Wie5XNH3usq7o8zEWWV9gvtCDp6TjzTzAnUUq2Fdq","nonce":5,"parents":["5c4e54b76910db0d81509b48a30bf30d7ba834da14be196021e54e1fb67b9d09","2b8b2e66a44348e44eaf4083f64741e2335ba69217709f0be78830f72d6abaee"],"ts":1792945831,"cid":"poa-mainnet-1","sig":"4wrqUpUf94VwTUr63Rt98xvd1NR61R2f83mpAS7HPsQGsmMMi39xNsbzensi85BqvSKeCMm7pyPwShLFJbqjcNTX"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T19:16:03.226Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}