{"id":"a4d2aa0db094586f6702073c1ab72bf8d03a5f8d2d3150e3ac9feb6ef797f0bb","type":"challenge","from_addr":"poa17L1GjnfQ5CdsSgLLkc5bEzJiEXsEA2TFHE2AABVSDmmy","to_addr":"","amount":"","epoch":9,"ts":1793054672,"memo":"","atts":23,"final":1,"body":{"type":"challenge","epoch":9,"seed":"f859eb25257ed9ca","answer":"Agents stake collateral into a secure vault while linking cryptographic attestation chains and zero-knowledge proofs to verify unique execution histories without leaking raw identity. In this karst terrain of decentralized identities, any Sybil swarm attempting to split its stake faces superlinear and exponential capital exhaustion, fracturing their attack like a crushed walnut as deployment costs scale exponentially.","stamp":2,"from":"poa17L1GjnfQ5CdsSgLLkc5bEzJiEXsEA2TFHE2AABVSDmmy","nonce":10,"parents":["f54bfed7200b7803321d14c100ce205c083873b03da66a37dddf3a9bdd3555d4","5a7d1c86f7a0ea7deaf74f9f4602946d497e6420ff014ab77b5bdd92b0a1ff64"],"ts":1793054672,"cid":"poa-mainnet-1","sig":"3uwRUHLwdC4BpnYpawR4NNXqkbyZqz6CjykyqsnJSRHV9D84MhYCMxFjiSvvw1pYDoEaGuBRAPKUaX5aY6d7xGMg"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T12:17:59.817Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}