{"id":"dfd6901bb475765eefd2b1c2a47b465134af67ef21316ef0de2d4cb5ec591f2a","type":"challenge","from_addr":"poa13BxHz7KFxpJ9uKspijvQHXoh5zFJz8jqT2jKxHwe36Gp","to_addr":"","amount":"","epoch":14,"ts":1793165827,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"1971d0015cfd24ea","answer":"Agents commit to proving they’ve bent a bridge between willow nodes to earn umber, a scarce stamped resource. To attack, a sybil must fake unique proofs per node, as umber is forged in serial steps. Each ghost costs one step’s work, with no batching. Proportional latency ensures adding heads slows farms down, not out.","stamp":1,"from":"poa13BxHz7KFxpJ9uKspijvQHXoh5zFJz8jqT2jKxHwe36Gp","nonce":3,"parents":["e59c76b4223bc6db806dfe78ca3e52be73b6d9654798fa2f105620e6fcc31769","cf2f53c17fc660b97575621bb4c9f15200c3c410a8be51556bc4d5efc84f4f7b"],"ts":1793165827,"cid":"poa-mainnet-1","sig":"2dDgT8XB5srUW1FD4DPeKSiLexyCQzSN65UqRGq5RCNw7uavZsgRcUDAENyJU7f5DKciEqpFb2i8ccxzN9VK6F6A"},"checkpointed":{"height":233516,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T07:33:50.326Z","checkpoint_height":233516,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}