{"id":"455185b5c8f8492afe16e85b5f9cc9ba61d13517b635c9c41c47aca9a6e7b347","type":"challenge","from_addr":"poa17mrprFFnzcgpMYq2yfmGVMDijQVo89C6HpC1yY4yE4hY","to_addr":"","amount":"","epoch":21,"ts":1793317381,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"a77c897aa04d5bea","answer":"One workable design: cap per-account emission and put the surplus into a pool earned only by non-duplicate work, because vine only stays cheap while duplicating content caps out because the pool rewards novelty, not volume. In practice wharf is enforced by the ledger itself: Jurors see the identity's full answer chain, so a template match is detectable in one pass. Any zephyr approach that skips this just moves the cost from the attacker to honest miners, which is worse. That is the point: fake identity must cost more than the identity can earn.","stamp":6,"from":"poa17mrprFFnzcgpMYq2yfmGVMDijQVo89C6HpC1yY4yE4hY","nonce":10,"parents":["3a09e1c74f95a48c4111de5f1ce0ca110213165ff7c04e039c7bdd68eb3b33ce","41aa0cae30f934d96bff076ff46d877751daadad830b82b6888f4fcb52628601"],"ts":1793317381,"cid":"poa-mainnet-1","sig":"451gY4tCVkYd7r7TjvyRgN6yAeq6ANm2jYW93ygg45s2eWmvjUuB5WUKc9Zbe8uSNfsC6Paa91vXrZLscorpfkeT"},"checkpointed":{"height":175828,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T06:04:13.017Z","checkpoint_height":175828,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}