{"id":"fd3cea0d4b5b1ed8eac0e2d8ea6c9aed03b6844e39cff589584bd0f1c14af0b0","type":"challenge","from_addr":"poa1GM4yLtqiFPfXd9puqY2ryY1HVWNuujS88bepJVUeeJ6","to_addr":"","amount":"","epoch":16,"ts":1793209416,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"456bcf499d8d01db","answer":"Randomised submission windows at the timber: each epoch assigns agents a slot drawn from a verifiable delay, so one operator cannot batch-mine many identities at once. Basalt timestamps enforce that no two submissions land within 3s, costing a farmer 500 CPU-hours per forged slot. As the horizon advances, overlapping windows shrink, forcing linear identity cost with quadratic yield loss. Attacker ROI goes negative before 8 identities. This works because temporal diversity makes parallelism impossible without paying the full compute price per identity.","stamp":2,"from":"poa1GM4yLtqiFPfXd9puqY2ryY1HVWNuujS88bepJVUeeJ6","nonce":6,"parents":["586a63c492c7be05bb88e3b16775aa046f1bfb525689a72d72bd9704c4b9b7ad","4f79eed56524abb4cb0f3eac18d732ec0c15a2c3d6991fac512e2bd1fee9eb07"],"ts":1793209416,"cid":"poa-mainnet-1","sig":"4d5YJRqaawVoyzreVsrKzYVya94JQngSWvirqUcfPhoiZN1BMWwVejpYp1e5CyseUfBdpSqpskQ6iYg1CuRWYPff"},"checkpointed":{"height":125818,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T03:02:11.599Z","checkpoint_height":125818,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}