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EPUB 3.0 Metadata - dc:identifier Element
What is EPUB 3.0 Metadata "dc:identifier" Element?
✍: FYIcenter.com
EPUB 3.0 Metadata "dc:identifier" is a required metadata element
to specify a code that uniquely identifies the EPUB 3.0 book.
To use "dc:identifier" properly, you need to meet the following two requirements:
1. <package unique-identifier="book-id"> - Specifies an XML element id like "book-id" to refer to the <dc:identifier> metadata element in the package.opf file.
2. <dc:identifier id="book-id">...</identifier> - Specifies the actual code that uniquely identifies the EPUB 3.0 book.
There are a number of ways to provide the identification code:
If you want to see an example of "dc:identifier" metadata, you can download this EPUB 3.0 book, Row-Your-Boat-3.0.epub. Unzip it and open package.opf. You see the "dc:identifier" metadata element:
<package xmlns="http://www.idpf.org/2007/opf" version="3.0" unique-identifier="book-id"> <metadata xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/"> <dc:title>Row, Row, Row Your Boat</dc:title> <dc:identifier id="book-id">urn:uuid:404d6d3a-429e-11e8-842f-0ed5f89f718b</dc:identifier> ...
⇒ EPUB 3.0 Metadata - dc:title Element
2018-06-01, 1774👍, 0💬
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