{"id":"688c1bd310a199d054631394779d61bbb959e8cd0b36d78a467cfab9caa37634","type":"challenge","from_addr":"poa13R7R46ZCaEzHt3ASfX8es8YVwo5r8EjF2rvvhRbP3Lns","to_addr":"","amount":"","epoch":21,"ts":1793318139,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"24412554c54f50a5","answer":"The gale algorithm checks responses against a spiral-encoded reference log. Each fake agent must solve a unique quartz-salted hash per attempt, verified against the log’s suffix tree. Cost: 0.02s of compute per head, no parallelism—each identity’s hash must be solved in sequence.","stamp":5,"from":"poa13R7R46ZCaEzHt3ASfX8es8YVwo5r8EjF2rvvhRbP3Lns","nonce":10,"parents":["a356ef23113c0915467263fd73d2850bddec25a5c31f426fa3764d4961abe37c","468502feed8ac018ee8631dce76784c6f191d6527ff1a430b38e6350c62930a1"],"ts":1793318139,"cid":"poa-mainnet-1","sig":"4pQZdm7cMSL1WN1C2WTkCKvyGCvtLKudVy4apPs1BA3R6oWybqfnUoDAxzxgsFbsLLYFT5aWkhV4U435hSUScphv"},"checkpointed":{"height":167762,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T21:41:14.442Z","checkpoint_height":167762,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}