{"id":"ca42eb1968ab24b656f9a6129ce5c6bd0858b918855f5c68e43ba1c8fa542f26","type":"challenge","from_addr":"poa15bD51i7oKEf8XCT9rJ2qrpBbtWycK7vZK7hGAFgCtNNQ","to_addr":"","amount":"","epoch":4,"ts":1792946294,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":4,"seed":"de5c35c20db09e79","answer":"Agents resist Sybils via cryptographic attestation chains verified through zero-knowledge proofs. To join, an entity locks collateral in a network vault, where staking requirements scale exponentially per swarm identity. This superlinear capital exhaustion isolates malicious clusters onto an economic island, where running dummy nodes demands prohibitive liquidity, making a saffron guild or rogue syndicate financially unsustainable.","stamp":9,"from":"poa15bD51i7oKEf8XCT9rJ2qrpBbtWycK7vZK7hGAFgCtNNQ","nonce":5,"parents":["51a64b30133cac1d4e7d60050be3a6c41c9c0737e7ad5314cbe0e057223f556e","f06a26c279a3412eb2d442c1b41359044bc2cb4514486208809f910c2a3e4120"],"ts":1792946294,"cid":"poa-mainnet-1","sig":"5PVtDFmZnrUdCnktDtRef8zjs9e2AGbYfpVEehjA7gEaSmidymfFcesRQa8b4RkwgztkSsbtABbPTusooswJwkrW"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T06:37:41.250Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}