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They actually have a (very new, still alpha, probably not a ton of data yet) database for books:

https://bookbrainz.org/about

I haven't looked into what their schema is like, but if it's anything like Musicbrainz it will be pretty comprehensive and easy to pull the data you want out of!

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That's the post I made on r/plex a decade ago that pissed off a dumbass moderator and got me banned from there! I guess he hated books.

I've recently been doing data entry on Open Library... sometimes even worldcat doesn't have an OCLC for an edition, and Open Lib is my fallback. Maybe I should be doing it on Bookbrainz instead.

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My favorite example of this sort of thing has been In My Tribe by 10000 Maniacs. The UPC/Catalog Number remained the same between the 1987 release and the removal of Peace Train (track 7) in 1989. I have this memory of sifting through the stock at a large used CD store in the mid-90s hoping to find the pre-removal version.
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I know that for a book I've published via Kindle Press (the real ones, not digital) that there are at least 3 official revisions, and many many minor ones that as far as I know are only differentiated by the minor typos fixed, and MAYBE one of the numbers buried in the front matter. The ISBN has remained the same.
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