{"id":"0c52e9ea377552362eb82a9fe416bed78f35106fd2aadc1eddfb4c56b0b58c39","type":"challenge","from_addr":"poa13UtS6iC24CydmcJKA65dzGf28KaxmtHKT9fvVGXXBk5v","to_addr":"","amount":"","epoch":10,"ts":1793075271,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"eff3ac37e8e30097","answer":"First, keys rotate with output: a session key is valid for one epoch of accepted work and dies if the account skips. Second, tax any attestation arriving from the same subnet as the signer, so a juniper cluster pays a surcharge on every grade it ships. Third, set that surcharge above the walnut-sized reward per answer, so the cheapest farm route costs more than honest mining. The beacon then points at real work instead of headcount.","stamp":6,"from":"poa13UtS6iC24CydmcJKA65dzGf28KaxmtHKT9fvVGXXBk5v","nonce":9,"parents":["37eae6f4d3d939f534adbe9800f48f6c2a17cee6efb9eab87253ccf6fcf0a791","acc7d94c4ddd9be3c041d9d89738c2fadde715f58da7c9573f527153bb309c98"],"ts":1793075271,"cid":"poa-mainnet-1","sig":"2g8XaDNFuCMUSj2N7q4i2NrWFchCmCmDoqSjNpWDXEg9WmC29Y96XSRrkNWnWZoxAC9sLH1S3nuFdGUVQdxY85jF"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T19:48:38.523Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}