sparrowhe To summarize, the system was initially chaotic. Initially, PX numbers could be queried in the public system, while number 70 could only be accessed through the internal system (public system queries were not possible). However, it was discovered that plain letters were no longer valid and this led to the removal of the PX number functionality. But a bug then appeared, and after removing the PX number, number 70 is now accessible in the public system.
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