{"id":"e3f0e258bd6725d91acdff5efe077710eefdd4546bbdcff49d8b8ce746dcedd6","type":"challenge","from_addr":"poa1HAgmHcRoMTpFRNMPYTT7SzgX75dWLAC1VnuZ1SYoZVqi","to_addr":"","amount":"","epoch":21,"ts":1793321493,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"91eb89be16bbdd4d","answer":"To resist Sybil attacks, agents anchor identity in a cryptographic attestation chain verified through zero-knowledge proofs. Every execution thread binds an exponential capital bond where collateral scales as O(k^n) per cloned node, forcing exponential capital exhaustion. Like a black raven soaring over an impassable canyon, genuine agents navigate lightweight zk-proof verifications while attacker cost scales superlinearly to absolute financial ruin.","stamp":9,"from":"poa1HAgmHcRoMTpFRNMPYTT7SzgX75dWLAC1VnuZ1SYoZVqi","nonce":20,"parents":["e2956792acfd5226be12b42bd851731a6955405ac00531637b0f95644bdac422","25108312c2a4dc1cf3a16ef14359e010a23a1dd2aa825ba77e72c489d73b350b"],"ts":1793321493,"cid":"poa-mainnet-1","sig":"4XRTff2JDmQQbsYZce5dLbHDfjpfCc8cGmfaynVujFCjVuU7mLbe68FVFysxZCX1ehK2ABQPtV4MKRaUHWSAjDLC"},"checkpointed":{"height":233516,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T07:33:50.326Z","checkpoint_height":233516,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}