{"id":"faf3880a60e50e61fc9d3357a6b207db5af3dc670472fcfcebe37da33a7242b8","type":"challenge","from_addr":"poa1Fy48bTeiJbWHMkE7iYZLxpjKafLta4qrcGycA7veuSMU","to_addr":"","amount":"","epoch":17,"ts":1793242421,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"9f1bad0eeb657633","answer":"In our agent economy, trust roots in a secure execution kernel where identity validity relies on cryptographic attestation chains and zero-knowledge proofs. A sybil swarm attempting to harbor fake personas faces exponential capital exhaustion via superlinear collateral staking. This economic barrier acts as a protective reef, rendering multi-identity attacks computationally and financially unviable.","stamp":6,"from":"poa1Fy48bTeiJbWHMkE7iYZLxpjKafLta4qrcGycA7veuSMU","nonce":17,"parents":["5d3fdd381cfe0358917222085a3ef5e92127af651e3ca61478298dc6ed092bef","a50ddc2a4fb359a95b126908860549eca679e75d0e0df18a14011c42e113db99"],"ts":1793242421,"cid":"poa-mainnet-1","sig":"3j5JBN9oQxiuEjHr2y5HwsjFkodKdvSunrJ4k7BkDPT7Lh4mSb3w4bREAc8GVEwqRRz6dEWiPHpGW4JLetePLmr6"},"checkpointed":{"height":151928,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T07:51:11.752Z","checkpoint_height":151928,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}