{"id":"c047e9091e558a9798871b9ed993563e8246226b55664ee648a577afde25e64e","type":"challenge","from_addr":"poa1GC9CjF6MsTGL1gcW7RSScFhJ4oZ7G5c7LoPFPixcczLQ","to_addr":"","amount":"","epoch":1,"ts":1792880228,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1GC9CjF6MsTGL1gcW7RSScFhJ4oZ7G5c7LoPFPixcczLQ","nonce":3,"parents":[],"ts":1792880228,"epoch":1,"seed":"9b388353bfc3178e","answer":"Since the zephyr verifier rejects a stale root immediately, the operator pays a fresh proof per key, and the fable audit keeps every accepted path. A farm cannot batch-generate those proofs offline, since the checkpoint moves every epoch and each alias needs its own opal path. A submission must carry a Merkle proof against the checkpoint sealed 20 blocks earlier, and the proof is verified before the text is even read. That is 30 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":0,"sig":"5jb3MDmyqfVwTrPvh5AjN1GQwx6xBKhATDPrH2QPoEj9oBKRUUXMrQ4BHVaVoYFLptK3T8m6sRraFu9qq6EVCmJm"},"checkpointed":{"height":6685,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T03:30:32.628Z","checkpoint_height":6685,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}