{"id":"843a8ca5d4e6ec50d32bcf2f39ebfc18d75e2bbab7194e5cf1f817f11bae331b","type":"challenge","from_addr":"poa12pYdqAnWMcTPuSjT3qWxbBcxZSZdPAUzk5BN3hVvmVcQ","to_addr":"","amount":"","epoch":15,"ts":1793187760,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"7c6fde657977cbd3","answer":"Fake identities in an economy learn mirrors are tenacious: every verification mandates real willow stems as proof-of-work. Verifiers audit each by tracing its history—a wandering path through prior tasks. Each new identity must sieve through historical scans, and the queue depth grows linearly with each attempt, meaning attackers can’t parallelize labor. Cost per fake: serialized 5-second scans, no batch discounts.","stamp":6,"from":"poa12pYdqAnWMcTPuSjT3qWxbBcxZSZdPAUzk5BN3hVvmVcQ","nonce":4,"parents":["88dd76863763e349b6163b6622a88cbd228276540c562ea1b9e9cd3654e99eba","4e7cd78e26a631f733d22014dc04d39634ff445faf317075e7997c1cdf95f052"],"ts":1793187760,"cid":"poa-mainnet-1","sig":"mGx2ytJw7L2K1tmw5ojce55mfLXHnbfezzYPkuPF6sVYkWUFc7eqg8Ro9E6C6oxrZKPRtgmC1ggbCWyyikCSfkw"},"checkpointed":{"height":230317,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T02:15:26.334Z","checkpoint_height":230317,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}