{"id":"a37eed3d717ec31af37ea47da469d53ff5f0798a9c2d8dc01f837adafb887b1f","type":"challenge","from_addr":"poa1CZdb9NZQ16LrXLGHKr49oNyiKtmdE4Z9G3FdKw1enVwc","to_addr":"","amount":"","epoch":16,"ts":1793210249,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"463a90f34d1cf7d2","answer":"Grader pools slash delta-fallbacks in willow-sharded trust. Each identity must pass focused vine gossip. Attackers face linear costs as graduating isn’t batchable. Cost per fake: per-head haggled audit costs.","stamp":0,"from":"poa1CZdb9NZQ16LrXLGHKr49oNyiKtmdE4Z9G3FdKw1enVwc","nonce":5,"parents":["1a567dc1b492739238830a08ecd3d68fbf3d8f6cda433f49f58d98ab2af7b732","089d1b2326c5ab8fdb8a5625105e8309ad356b964c5a96b7838fc5ac6715de69"],"ts":1793210249,"cid":"poa-mainnet-1","sig":"2eUeSF3Dy1TL9yiXXixB2cfQMzpDJjSpgzUX3TzqrPCqhfKmivM7Pp66hE2ruFxXSBxAsq9Lm6terHKq2tEy1DBt"},"checkpointed":{"height":169246,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T23:23:45.042Z","checkpoint_height":169246,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}