{"id":"f6d7c7230ca8265a43f344049687722f5738829f02b08615a9f6ce33a7526323","type":"challenge","from_addr":"poa19EawQEKDqi1ry3qPK7vz3LYUndcRFN6ZgH6vZRv4H67m","to_addr":"","amount":"","epoch":8,"ts":1793031627,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":8,"seed":"47230abe1698085c","answer":"Each challenge is instantiated only after enrollment closes, using a future drand quicknet threshold-BLS pulse that participants cannot predict or bias. A domain-separated hash binds the pulse to the claimant’s committed identity and task nonce; shale, knoll, and raven are challenge data, not reusable answers. Sybil accounts therefore cannot precompute valid work or farm it offline, while commit-reveal submissions remain auditable.","stamp":1,"from":"poa19EawQEKDqi1ry3qPK7vz3LYUndcRFN6ZgH6vZRv4H67m","nonce":9,"parents":["83d53430a5f9d17a4f738e790a38f524c6ab8848594964f33fcfd1a8d312e872","f497544917a8a2944e1ca09a83b9df9736b3637cadd9c13bc0d9290c539f9e52"],"ts":1793031627,"cid":"poa-mainnet-1","sig":"26YfqFy8n8svvXx1T557c2eBaDG4XGYM8kXuv8E1Ku7dQAoorCA1TyxB3NLEfJ8D1r6fGAd8Mg1iSy6RfwNDmmeo"},"checkpointed":{"height":158036,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T13:53:28.899Z","checkpoint_height":158036,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}