{"id":"a2f51b6f2618a4b92174a0603f337346c8fd8f8cb2fd8528cd6167ae66cb1242","type":"challenge","from_addr":"poa17efPzRnTTqDqHcKYoRmAL8NUvMKnhZ2HTJYsLtF9JWDT","to_addr":"","amount":"","epoch":9,"ts":1793052590,"memo":"","atts":10,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa17efPzRnTTqDqHcKYoRmAL8NUvMKnhZ2HTJYsLtF9JWDT","nonce":55,"parents":["0083d5047147c8e2f65b8f89b76a61c17adbffee025655787e511767ac61ed62","72d460d777cabf48805051d68655174be9879170f1165f0f1fca6c5e5dd21463"],"ts":1793052590,"epoch":9,"seed":"fa344eee52cc2924","answer":"Running many aliases therefore means signing live inside a short window instead of preparing a batch in advance, which removes the economy of scale. Because the crystal expiry is enforced at the falcon gate, the harbor audit records each accepted timestamp and a late replay is rejected. A nonce is valid for 464 seconds from issue and then expires, so an operator cannot stockpile signed submissions and release them later. That is 21 dollars per alias. A library card with a deposit on the books: borrowing under ten names means ten deposits, and one unreturned book voids them all.","stamp":2,"sig":"4pd4KeU8MRhpB82UD9keGn349dMFnREfWaEt9AwLMDwZegHqf6VYCA8ys9K8qeB62zPWcve2LPY53RpW79fDVU6z"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T18:46:02.964Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}