Copyright on On the digital files?
Computers didn't exist in that form in 1923.
1923 materials are now longer under US copyright post Jan 1st 2019. We havent had bulk new public domain materials since 1998 (1922 materials).
Anyone paywalling this is 'erecting a wall around the commons'. These files belong to a shared body of human knowledge and are unencumbered by copyright.
Anyone paywalling this is 'erecting a wall around the commons'. These files belong to a shared body of human knowledge and are unencumbered by copyright.