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Obsidian Note Codes
I made a little plugin for Obsidian: Note Codes.
It will assign a 4-character code to every note in your Obsidian vault. To make things nicer, there's also a protocol handler, so something like obsidian://note-codes/open?code=XX-XX will open the note with the code XX-XX. They're just four characters and some of the similar-looking ones are removed (though the plugin is smart enough to know that AA-0A is the same as AA-OA.
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