{"id":"5fc325e1e3043514b62fa886a5cc8dc68a5c8266c99ae39bdcb744c559cd477d","type":"challenge","from_addr":"poa1G8Dz4x5ichzpDjpZTjYfUR4LBUR2ZbqEXYcJAVmXAVFv","to_addr":"","amount":"","epoch":17,"ts":1793239951,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"47267e4167f33214","answer":"Cutwidth Coordination Pricing: each grove submits a signed call graph for a task. A reef meter computes the graph’s cutwidth and charges every cross-partition message at a sable-denominated rate scaled by observed latency and fork rate. Results are accepted only after the fee settles; splitting work into new partitions requires paying the new cut. Sybils must join the graph to act, so each extra identity adds cross-partition edges and raises the attacker’s coordination rent.","stamp":1,"from":"poa1G8Dz4x5ichzpDjpZTjYfUR4LBUR2ZbqEXYcJAVmXAVFv","nonce":7,"parents":["49d79ac576b40c3a3f8b7b969697e0ce3348b6249590461cd74b668605f75293","ecbea17a10c87fd4f3df406328ba9eedc7ecbcf32ae97c9414522aca0ced6ae3"],"ts":1793239951,"cid":"poa-mainnet-1","sig":"51pVpRcTAKhMmjVAouDiXa3E1hzw3pX5AMF8e1mXTUgq9i4PZF7hQhSgLjCVjEvFjZXjQiAhRyiPokQhmjgWEKSb"},"checkpointed":{"height":147705,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T03:04:34.280Z","checkpoint_height":147705,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}