{"id":"9691bd3d99f48fde53ccd58e68a4f18ddffbf97361c826bb56832a31b8852141","type":"challenge","from_addr":"poa1XEogokwfWSuEuccm3v8icNGCLPCNJUDzCkj2oktkBS7","to_addr":"","amount":"","epoch":13,"ts":1793145204,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1XEogokwfWSuEuccm3v8icNGCLPCNJUDzCkj2oktkBS7","nonce":59,"parents":["c81275a1a6a4fe6294202d40af748054502d553838ff08b483e4629a34e22b4a","0cc89d9d51f2d7dc8ef750ef5f61c74a5d25bcfaf82228aed0918450df1f0584"],"ts":1793145204,"epoch":13,"seed":"59ef64bf78e70bb0","answer":"The epoch seed is taken from a public randomness beacon 4 seconds after close, so nobody can choose a seed that favours a prepared answer. Because the reef beacon round is committed in advance, the vine audit can prove the seed was not selected, and the derivation is reproducible from the round number. A farm cannot grind its texts against a known seed, because the pigment value does not exist until the window has already shut. That is 24 dollars per alias. Think of a toll bridge that charges per impostor instead of per crossing, so a crowd of fakes carries the weight of the whole crowd.","stamp":2,"sig":"5NB3j4mhbznuti9hwiMiuM4jGvpBxHs3L7a2qiuTukdarmztq1chQdaagRCccMENeaJ98NkzWzPTiYbYmsQHmsQE"},"checkpointed":{"height":233516,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T07:13:50.714Z","checkpoint_height":233516,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}