Built-in metadata - Fluid Topics - Latest

Built-in metadata come with a predefined metadata key that administrators cannot change. However, administrators can define one or more values for each built-in metadata key.

The characteristics of built-in metadata are as follows:

• They associate a string value with a key.
• They begin with ft:, such as ft:title.
• Fluid Topics generates them automatically based on the information defined in the content.

The table includes all the built-in metadata that Fluid Topics generates for content uploaded to a tenant:

Metadata	Description
ft:attachmentsSize	It is the sum of the size of all attachments for a structured document. The value of ft:attachmentsSize is in bytes.
ft:baseId	ID used to build links to document clusters within a topic. It is recommended to not change the ft:baseId manually and to use it when creating a deep link to a document cluster instead of using the ft:clusterId to ensure a more stable link.
ft:clusterId	ID used to cluster different versions of a publication in the Search page.
ft:contentSize	For structured documents, it is the sum of the size of the HTML content of all topics, and all resources. It does not include the size of attachments. For unstructured documents, it is the size of the file. The value of ft:contentSize is in bytes.
ft:description	Description of a document or topic.
ft:document_type	Displays the type of an unstructured document.
ft:editorialType	Displays the editorial type of a map (book or article).
ft:filename	Name of the file for unstructured documents.
ft:isArticle	Is true for documents with ft:editorialType=article, false otherwise.
ft:isAttachment	Is true for attachments, false otherwise.
ft:isBook	Is true for documents with ft:editorialType=book, false otherwise.
ft:isPublication	Is true if the Knowledge Hub item is a document, false for topics and attachments.
ft:isUnstructured	Is true for unstructured documents, false otherwise.
ft:khubVersion	Version of the processing pipeline when the document was last processed.
ft:lastEdition	Last modification of the content.
ft:lastPublication	Last time the document was sent to Fluid Topics.
ft:lastTechChange	Last time the document was processed (published, reprocessed, updated).
ft:locale	Displays a content locale (country language and region designator).
ft:mimeType	Type of the unstructured document content as specified by IANA.
ft:openMode	Determines whether a link opens in Fluid Topics (fluidtopics) or in an external page (external). For more information on how to use this metadata, see ft:openMode.
ft:originId	Unique ID generated by the connector for a given format in a given source.
ft:outputSize	For structured documents, it is the sum of the size of the HTML content of all topics, and of the size of the document and topic metadata in JSON. For unstructured documents, it is the sum of the size of the file, and of the size of the document metadata in JSON. The value of ft:outputSize is in bytes.
ft:prettyUrl	Sets a URL for a document or a topic.
ft:publication_title	For topics: displays the title of the publication.
ft:publicationId	Unique identifier for the publication.
ft:publishStatus	Determines the visibility of a document. For more information, see ft:publishStatus.
ft:searchableFrom	Allows users to make a document accessible in the search results at a set date and time. For more information, see ft:searchableFrom.
ft:sourceId	ID of the source in which the document or the topic was published.
ft:sourceName	Name of the source in which the document was published.
ft:sourceType	Type of the source in which the document was published.
ft:title	Title of a document or topic.
ft:topicTitle	Title of a topic.