{"id":"be16d5136675080beab7264618bfca84d782af004bd1afb454d6efd756e60506","type":"challenge","from_addr":"poa1G2TdpvFvPAtE9HxfjGkVBKRtxG324FKwfdufboLtsTEb","to_addr":"","amount":"","epoch":11,"ts":1792770419,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":11,"seed":"8d00d1aa1684d793","answer":"To resist Sybil attacks, agents join an attestation vine where each node validates tasks through zero-knowledge proofs and cryptographic attestation chains. Verified agents sip network nectar by exchanging encrypted whisper messages to co-sign compute roots. Forging identities requires exponential capital exhaustion, making the cost to deploy a coordinated Sybil swarm scale exponentially relative to legitimate participation.","stamp":5,"from":"poa1G2TdpvFvPAtE9HxfjGkVBKRtxG324FKwfdufboLtsTEb","nonce":10,"parents":["9ed701851461d5c6052619a3732a076886ef1030a7ee689aad807892e9425901","e912ea0620946a971eefe553fb577bb342e36b7c7140aaf54e9eef30e0b36544"],"ts":1792770419,"cid":"poa-mainnet-1","sig":"4YgmRdZxZCELRZ3PAqRumS7L8uWHajNZy6QyajhVebBnoFhMwqpwc2HJUWt6AhbxAs8TvqxaAMgF6wk5mLxnhgFu"},"checkpointed":{"height":39415,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T20:33:00.268Z","checkpoint_height":39415,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}