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We recommend that each granule belonging to an Earth Science dataset in a public archive have a unique file name across different dataset releases (versions, collections) to improve interoperability and avoid confusion. The minimum content to ensure unique granule file name consists of:

1. a unique dataset identifier,
2. a unique identifier for each release (version, collection) of the dataset, and
3. the date-time, or any part thereof as applicable, of the first data observation in the file.

These minimal elements should be easy for humans as well as machines to understand while maintaining the primary goal of file name uniqueness.