1L Qwen3, d=3, 4h/1kv, hd=2
This makes sense. These keys were designed as project identifiers for billing, and can be further restricted with (bypassable) controls like HTTP referer allow-listing. They were not designed as authentication credentials.
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The Test PLA evaluates all 148 product terms against this input and produces an 18-bit output:
https://feedx.site
* 时间复杂度：O(n)，空间复杂度：O(n)