The Open Torah project produces a number of websites, papers and code packages.


In addition to the main website, the project maintains:

  • digital edition of Rabbi Wichnin’s Chumash Questions book:;
  • archive documents from the early history of Chabad (including the arrests of the Alter Rebbe in 1798 and 1800):


  • paper on Rambam’s Laws of the Sanctification of the Moon; goals of the paper:
    • reconstruct models that Rambam uses and their parameters from the Rambam’s text;
    • identify misprints in the traditional editions;
    • see how Rambam’s calculations of the moon visibility compare to the current models.
  • paper describing ideas (dating from 1991) for the dream environment for working with Jewish texts.
  • companion paper on typesetting Jewish texts.


  • code that generates and serves the website;
  • code for working with specific Jewish texts and for calculating Torah reading/learning schedules;
  • code implementing Rambam’s calculations with dates, time intervals and angles and related algorithms.


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