Grouping ID

This documentation describes the Grouping ID as used in Pika’s grouped work grouping logic.

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Grouping ID basics

Every grouped work has a unique Grouped Work ID associated with it.  All data related to grouped works will be based on that Grouped Work ID.  In other words, the Grouped Work ID identifies the grouped work. Since everything is based on grouped work, the Grouped Work ID is important. Any user-generated data like ratings and reviews are based on the grouped work and attached to the Grouped Work ID. Building a list is based on grouped work.  Under the Cataloging tab, the grouped work merging uses the Grouped Work ID. The Grouped Work ID is located in the Staff View in Pika.  This information is on each grouped work page.  The location of the Grouped Work ID depends on if you are looking at the grouped work view or individual full record view.

Grouped Work ID from the Grouped Work View.     

 

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Grouped Work View Staff View section for Grouped Work ID.

 

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Grouped Work ID from Individual Record View.

ID structure

The Grouped Work ID is a hexadecimal number called a hash.  The number is generated by hashing each of the grouping factors. The ID contains dashes in specific spots and has a length of 36 characters.   Hash algorithms are designed to be collision-resistant, meaning that there is a very low probability that the same string would be created for different data.  Hashing takes any text and converts it to a number that is supposed to be unique.  If you have the same set of text that is run through the hash, it will automatically create the same ID.  The grouping factors get sent through an algorithm that creates the Grouped Work ID. 

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