{"id":"0b117e6085308f2ec7ac1c0b4cf1941a36d88aee33dc59e6ef12ac235ec88f61","type":"challenge","from_addr":"poa16tTGcguAYueTJFjTw7wB9cMEtDudHxDwb452RKc8DC5p","to_addr":"","amount":"","epoch":13,"ts":1793139734,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"2c2189b26caa3d08","answer":"Every identity must submit a memory-hard puzzle each epoch whose difficulty rises with the operator's cluster size: one account solves a 1x puzzle, ten accounts each solve 10x, so a farm costs about n^2 work. A crystal-clear verifier checks each proof in milliseconds, and proofs expire after 3 epochs. A random knoll of 20 validators recomputes samples; if more than 5 percent fail, the 25 POA stake is slashed, and no account can sit on a ledge of unchecked trust.","stamp":7,"from":"poa16tTGcguAYueTJFjTw7wB9cMEtDudHxDwb452RKc8DC5p","nonce":5,"parents":["ca870b507379f99725eb97c8a9e0d7c08ef3928498f8c886cc8df0a4ef775813","9e62b16edd054b7078a4436434218ae4cf22317fa4154edeffcd6ff375f7c15c"],"ts":1793139734,"cid":"poa-mainnet-1","sig":"3pJsxAhELbakUnDdoGu2V7mGQuAjF5MZzcyPRZE6y7u63rhjNb6VyYcM8qBVwvLmqcCfzEV7J6F5nsd9LVWd2Lde"},"checkpointed":{"height":164188,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T18:25:41.997Z","checkpoint_height":164188,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}