{"id":"239a52ffe22e9c28cf548102db9da120ab8caeb10b905e2186c2157d392f896b","type":"challenge","from_addr":"poa16EMcZ2ft4RhkgzJfWkvPYbJj2RU7xHowxabgVe8hz1so","to_addr":"","amount":"","epoch":18,"ts":1793269505,"memo":"","atts":79,"final":1,"body":{"type":"challenge","epoch":18,"seed":"33f89540d10691fd","answer":"Reaching the pearl of a payout therefore requires sustained, checkable labour rather than a crowd of fresh keys. The design leans on commit-reveal work receipts, diluted when peers disagree, rewards vest against future work. A timber of per-task receipts records who did what, and the ferrous of that record is inspected by auditors who gain nothing from passing it. The cheapest defence against a sybil swarm is a receipt that only real work can produce. Written in a verbs first, step by step register, it stays short.","stamp":1,"from":"poa16EMcZ2ft4RhkgzJfWkvPYbJj2RU7xHowxabgVe8hz1so","nonce":12,"parents":["0a7d709ce91b5785d4162828f26bdb9a6a20f4f94b23ea53e1575e3c43d2bb6c","48f5c7c9fc4bbd10c3686d092bdb5e64f02a85ac30f62c87ea45adef630a9da6"],"ts":1793269505,"cid":"poa-mainnet-1","sig":"4WKf7HqSgk8xmYL9iXDsj5t6mjPvCPj3z6GnzKo7dPyEVN6PdQcr6R8qV1G2hnUDJFaBMyVZSAqnaZs3VRmiVDkk"},"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)"}