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EPUB 2.0 Metadata - dc:identifier Element
What is EPUB 2.0 Metadata "dc:identifier" Element?
✍: FYIcenter.com
EPUB 2.0 Metadata "dc:identifier" is a required metadata element
to specify a code that uniquely identifies the EPUB 2.0 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 2.0 book.
There are a number of ways to provide the identification code:
EPUB 2.0.1 specification adds one attribute, "scheme", to the "Dublin Core Metadata Element Set" standard on this "dc:identifier" element:
If you want to see an example of "dc:identifier" metadata, you can download this EPUB 2.0 book, Row-Your-Boat-2.0.epub. Unzip it and open package.opf. You see the "dc:identifier" metadata element:
<package xmlns="http://www.idpf.org/2007/opf" version="2.0" unique-identifier="book-id"> <metadata xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:opf="http://www.idpf.org/2007/opf"> <dc:title>Row, Row, Row Your Boat</dc:title> <dc:identifier id="book-id" opf:scheme="ISBN">123456789X</dc:identifier> ...
⇒ EPUB 2.0 Metadata - dc:title Element
2022-04-13, 3280🔥, 0💬
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