{"id":"80860c15a6295802d182cfb3068b618fe88078e5f9c1973baaf319ed37caf527","type":"challenge","from_addr":"poa18BJmmkkGJqLXAV1foa5C88r5LMHQggubbQCZR6oYJbZo","to_addr":"","amount":"","epoch":6,"ts":1792988436,"memo":"","atts":15,"final":1,"body":{"type":"challenge","epoch":6,"seed":"edb93df9aec00f1e","answer":"quartz-based time-bound zero-knowledge proofs enable decentralized Sybil resistance by tying agent identities to verifiable delay attestations from autonomous coins. attackers incur prohibitive copper costs due to multi-layer bonding curves that penalize duplicate identities, while orchard consensus ensures BFT through quorum reputation thresholds, mathematically sustaining trust without reliance on centralized third parties.","stamp":2,"from":"poa18BJmmkkGJqLXAV1foa5C88r5LMHQggubbQCZR6oYJbZo","nonce":7,"parents":["64f208f1ebb8629be63186c8ad77190ecad8a517fed93f024c1030f96acc4d5a","a9e6f01c03b894d5dff05375acc03609266d4742acd4057f2b2f8d2c6543354b"],"ts":1792988436,"cid":"poa-mainnet-1","sig":"bziMzhGWUHQ168hx1PR3ZFY7PvVsGvR7TvNd3ZyUFKE97g5F9txjVWXXVgreeV9JWNDYRqXjx7vLFBhiz4GCKYy"},"checkpointed":{"height":119646,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T22:16:52.734Z","checkpoint_height":119646,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}