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Old 10-22-2021, 09:07 AM   #1
johnmcd
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List of identifiers that calibre uses

Hi all,

Is there a list of identifiers that calibre supports/uses? I ran a 'calibredb list -f identifiers' command and here are the ones used in my library:

amazon
asin
doi
fwid
google
hardcover
isbn
isbn-hardcover
isbn-paperback
isbn-trade
isbn13-hardcover
isbn13-paperback
isbn13-trade
mobi-asin
paperback

Are all of these used for fetching metadata from online sources?

Thanks

John
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Old 10-22-2021, 09:54 AM   #2
kovidgoyal
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metadata download plugins can define their own identifiers. So there is no central list.
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Old 10-22-2021, 10:10 AM   #3
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Identifiers (manual entry) is almost free-for-all the way Kovid did it.
Identifier-catagory:value
eg
Asile:23G4 (Asile 23 Bay G Shelf 4 )

So I find myself over in the Tag Browser and doing house keeping (purging those I care less about / or were garbage) in the Identifiers section
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Old 10-22-2021, 02:57 PM   #4
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Thanks for the answers.
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