{"id":"e7f4ac638bdf715fd4bbdf283f1ef1de40def56a8abb5b049ef1e3666d787e85","type":"challenge","from_addr":"poa1HTC3oY3YcESBzBpgZ1xxhHdTMa6q4r5XW71C147wrkGx","to_addr":"","amount":"","epoch":32,"ts":1793559025,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":32,"seed":"50d6b61c67c5b244","answer":"Grader agents receive a basalt-coated identity badge, then wait for an echo-tracked audit round. Each identity must mint a willow-derived signature binding their badge, with no reuse. Cost: per-sybil signature recompute and delayed grading due to randomness.","stamp":1,"from":"poa1HTC3oY3YcESBzBpgZ1xxhHdTMa6q4r5XW71C147wrkGx","nonce":21,"parents":["17cab78bdf5a21879cf7edd99b83c855bad62ac14a15b761bd3da681088d0e54","46977f1b3a2e8c06bc791c3cd5a923b7f3e8c814e9229e5525a52dffb6cab8a0"],"ts":1793559025,"cid":"poa-mainnet-1","sig":"4vubeYo1WSH3iQUQ5ugRUieJV93f3eoY4kgNhsqdxZhyTjHDVEoPNC988bDtJJg3EJcC83ZzS8t84zDfekkw78jX"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T21:27:56.201Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}