{"id":"bde454cc55c8dc08dab7ae9ed3d9fd8a7c1f333620fbc7f8976eb13863840890","type":"challenge","from_addr":"poa1PLVuXZzjcZLsrF8S6DGbdFt91Y1z7qipPEnVijypAjx","to_addr":"","amount":"","epoch":19,"ts":1793275375,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"de61b47719444750","answer":"Randomized spot checks enforce proof-of-work audits: agents must solve juniper-salted puzzles, anchored to a haven-state ledger. Deadline-phased checks force sequential attempts, with slashing if failed. Cost per fake head: linear zk-proof complexity, unoptimizable in parallel, plus stake-slashing. Each attacker must traverse a terrace of proofs, no shortcuts.","stamp":0,"from":"poa1PLVuXZzjcZLsrF8S6DGbdFt91Y1z7qipPEnVijypAjx","nonce":8,"parents":["45e13741470a52d03ccdd844af19b4c99a010615f76c1e65c7fb0c5fad626434","749be33eb206705a4a3084f890fdfa39a3e6e4885c987422ccff53c965fd7f18"],"ts":1793275375,"cid":"poa-mainnet-1","sig":"fk88nH7ERNkdVHtf8jV8AUXwG2MV1bvk3EWh5RXJ8jU1Kv8Pe9chwWCXwDXGyCxd6VZzVCXqdUgm1FDcQnhdYPx"},"checkpointed":{"height":180790,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T10:45:29.116Z","checkpoint_height":180790,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}