: 0100B91014DE8000 is the unique identifier for the game Sakuna: Of Rice and Ruin (Japanese title: Tensui no Sakuna Hime ).
In this context, you will often see several file formats used for emulation on platforms like Ryujinx: : 0100B91014DE8000 is the unique identifier for the
: [v0] represents the base version of the game without any additional updates. : 0100B91014DE8000 is the unique identifier for the
: NSP (Nintendo Submission Package) is the standard digital file format used for games downloaded from the Nintendo eShop. Understanding the File Types : 0100B91014DE8000 is the unique identifier for the
The text you provided is a file metadata string commonly used in the Nintendo Switch homebrew and emulation community to identify a specific game.
The string [0100B91014DE8000][v0][JP] indicates the following:
: [JP] specifies that this is the Japanese regional release.