(2019-08-05) 80 Percent Of Books Published 1924-63 Never Had Their Copyrights Renewed And Are Now In The Public Domain
The problem has been to figure out which of these works were in the public domain, because the US Copyright Office's records were not organized in a way that made it possible to easily cross-check a work with its registration and renewal.
the New York Public Library, which employed a group of people to encode all these records in XML, making them amenable to automated data-mining.
Now, Leonard Richardson has done the magic data-mining work to affirmatively determine which of the 1924-63 books are in the public domain, which turns out to be 80% of those books.
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