[D] If a paper has no open source code available, are you allowed to implement the code for fun/practice and publish it in your own Github with appropriate citation and mention that all credit goes to the authors?

Hi all,

I found a description of an ML implementation of a numerical calculation in physics in a paper that is published on arXiv with the CC4 license (besides arXiv it was also published in a journal but I'm only looking at the arXiv version):

You are free to:

Share — copy and redistribute the material in any medium or format for any purpose, even commercially.
Adapt — remix, transform, and build upon the material for any purpose, even commercially. …

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