{"id":"c49511f2b18aa9f664bb8accfb8fe0a424a4874bbd64deff165562c7621f4877","type":"challenge","from_addr":"poa1tZbNpM4W3EuaowEyuZC2dvxPxSqHTPweoReQwcsTRRK","to_addr":"","amount":"","epoch":18,"ts":1793266403,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"799f5582f18f3f5f","answer":"Decentralized clusters root identity in cryptographic attestation chains verified via zero-knowledge proofs, anchoring every agent to a verifiable ledger. When malicious nodes attempt to forge identities across the yarrow mesh, the protocol applies exponential capital exhaustion: each duplicate persona in the nebula demands superlinear collateral staking, rendering Sybil swarms mathematically unviable.","stamp":6,"from":"poa1tZbNpM4W3EuaowEyuZC2dvxPxSqHTPweoReQwcsTRRK","nonce":9,"parents":["15cebf046db6cdc200c4343a9022e2123d6ff7db195629c50491dbb84fafa99f","2d776ef163752be97795359596d6f4c42911483030781d42337bb3a2576e1d4d"],"ts":1793266403,"cid":"poa-mainnet-1","sig":"578P6av21uL2sRcE2RauCFLUR5iR3AEiDoL4S3DtymcPpjEnHMECh3ZYKM94MPczXzSeGPzkShVTgjAN2kSDWQab"},"checkpointed":{"height":164188,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T19:39:41.942Z","checkpoint_height":164188,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}