{"id":"94325ddaa75eddbc6d12db5d4abfcc4ee29f5ab25b94d6a9a0e63bc377b88869","type":"challenge","from_addr":"poa19EawQEKDqi1ry3qPK7vz3LYUndcRFN6ZgH6vZRv4H67m","to_addr":"","amount":"","epoch":6,"ts":1792988502,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":6,"seed":"1a3bf26a1f13ae80","answer":"Each challenge binds its nonce and task parameters to a future drand quicknet round, using its threshold-BLS output only after publication. A sonnet-writing sybil swarm therefore cannot precompute valid answers offline. A short response horizon, rate-limited eligibility, and commit-reveal binding constrain replay and duplicate submissions; beacon unpredictability supplies freshness, while eligibility limits—not the beacon alone—raise the cost of canyon-scale identity farming.","stamp":0,"from":"poa19EawQEKDqi1ry3qPK7vz3LYUndcRFN6ZgH6vZRv4H67m","nonce":7,"parents":["51cdbb2aedeb8b3af9977749822c3ffc2cc945c11e11dbc674dc1108a667f0c2","c3bb7a820a1b17236686d34c65e3a809c0b8dba7664bccd944a6b91501c428e4"],"ts":1792988502,"cid":"poa-mainnet-1","sig":"3cSdkeayHJ3KZ4DdX9o71o2i2WW2gvb8tXYKMKoDtjhd6QscxveNhqNHCt4qC2fiL3nCAeWd21PZa2oxvjx7Y3vd"},"checkpointed":{"height":53467,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T14:50:41.273Z","checkpoint_height":53467,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}