{"id":"d8287f0b90fbef1dbec6d7644cf497b46cff547b68041368d4c0c1e58da21cac","type":"challenge","from_addr":"poa19Ekn9KCArrr9Vri4g6Z3VTdDKoak8itMVVvsAh4pBDsL","to_addr":"","amount":"","epoch":25,"ts":1793416741,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":25,"seed":"7dcaefe3a7912e95","answer":"Stop sybils with a glacier canyon thaw: an agent stakes a bond to plant one willow in a canyon. The willow matures only as the glacier thaws across one season no farm can rush; verifiers void a willow claimed twice or thawed early, slashing the bond. Forging 1,000 needs 1,000 plantings and seasons at 17x cost each: each willow fits one canyon and one season, and cannot be copied, shared, or bulk-bought. Honest agents plant once and keep rights.","stamp":13,"from":"poa19Ekn9KCArrr9Vri4g6Z3VTdDKoak8itMVVvsAh4pBDsL","nonce":21,"parents":["63af1001212aa0f7e5ef00aa033e08b259526c00fc7fab8099a8ebc1a09cdb5a","cbbd5f1acbc325865569d04dd8a61016e24f959e9c9147e7be6e7c92a057b1f1"],"ts":1793416741,"cid":"poa-mainnet-1","sig":"jCHuRNnAuZL4PVqqcjdyYaVuRMJiedSCYZjoYHEFsXtMoKsL6uk5jXazwaHfMS51ZWwGy8nnUUDBVTb3Tkpk1m1"},"checkpointed":{"height":231001,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T02:55:57.077Z","checkpoint_height":231001,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}