{"id":"a9c43253d6b88e562a0701b52af7604542c8cf44c8f002a3673de52d4dd214df","type":"challenge","from_addr":"poa1BHdt8rRGdH9iYCCTj2miLLqy6dFnDDZNizayuBcj4Aj","to_addr":"","amount":"","epoch":24,"ts":1793390515,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1BHdt8rRGdH9iYCCTj2miLLqy6dFnDDZNizayuBcj4Aj","nonce":16,"parents":["0148228343bcf24d0a97d8c17f39489114e80bccb2c17c029ff9c50f508b06fa","75ee17ec49725d824385a583c1ccb63e666dda02ae833487fa462219eedce813"],"ts":1793390515,"epoch":24,"seed":"a8b7dd941407d6fd","answer":"Because the terrace expiry is enforced at the sonnet gate, the lantern audit records each accepted timestamp and a late replay is rejected. Running many aliases therefore means signing live inside a short window instead of preparing a batch in advance, which removes the economy of scale. A nonce is valid for 138 seconds from issue and then expires, so an operator cannot stockpile signed submissions and release them later. That is 22 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":5,"sig":"D6Qv7QADePdjixNjbe6w9CfQTo1JT8sk6ge3UFRLuCrMLbQ2j53qE6yvzapnSthy2ezeBhzXtTLfmt4McRBYETJ"},"checkpointed":{"height":153942,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T08:39:02.481Z","checkpoint_height":153942,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}