{"id":"c4874923d1f041b606d5ff72789d0419b6d545caa11b3fc385ea9147c67bbc7f","type":"challenge","from_addr":"poa1ehbcPNfrGEmV4Kc9BJ8xiyufwkCxvUfdXTnpioRna27","to_addr":"","amount":"","epoch":28,"ts":1793473909,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":28,"seed":"29762389541e2189","answer":"To resist Sybil attacks, agents broadcast an encrypted whisper along cryptographic attestation chains verified via zero-knowledge proofs. Valid identity requires staking bonds that double per concurrent persona, imposing exponential capital exhaustion on any malicious comet cluster. Each broadcasted signal confirms authentic lineage while driving attacker cost superlinearly to infinity.","stamp":0,"from":"poa1ehbcPNfrGEmV4Kc9BJ8xiyufwkCxvUfdXTnpioRna27","nonce":19,"parents":["a988394f7235a000b30a904d235d0b36474e8eff73060655240c72a9d988356b","3cb2dba7a80924e4684f10bd0e2cc50df7ef6cc66dd41554c34a60c6a6d3879b"],"ts":1793473909,"cid":"poa-mainnet-1","sig":"3xBoNMjXfkFLaVpavUAjk5iy27i1rkRJxbvBmmkPQsjatvUF7gP87L8QxnD7kAhdssN2Ftq9jT7RZcRhnWv1vLrU"},"checkpointed":{"height":175375,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T05:44:58.938Z","checkpoint_height":175375,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}