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• Creative Commons Attribution 4.0 International License (CC-BY 4.0)
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• other public domain dedications
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• Codebase Breakdown By License:

• CC-BY-SA 4.0

  _CONTRIBUTORS.md
  donate.md
  index.md
  _log_entry_boilerplate.md
  Makefile
  _README.md
  _site.yml
  about/
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      me.md
      me.d/
          Isaac_David.pdf
  log/
      index.md
      2015-10-25.software-y-propiedad-intelectual.md
      2017-09-18.humor-puerto-vallarta.md
      2017-12-06.pachelbels-canon-piano-transcription.d/
          Canone_per_tre_violini_e_basso_(piano_transcription).opus
          Canone_per_tre_violini_e_basso_(piano_transcription).webm
          math*.opt.png
      2017-12-06.pachelbels-canon-piano-transcription.md
      2017-12-28.ravel-voudrait-etre-libre.d/
          Le_Tombeau_de_Couperin._I._Prélude.opus
          Le_Tombeau_de_Couperin._I._Prélude_(re-rhythmisation_guitar).opus
          Le_Tombeau_de_Couperin._I._Prélude_(re-rhythmisation).opus
          Le_Tombeau_de_Couperin._I._Prélude_(vibes).opus
          Le_Tombeau_de_Couperin._I._Prélude.webm
      2017-12-28.ravel-voudrait-etre-libre.md
      2018-07-23.consciencia-percepcion-conceptualizacion.md
      2019-07-05.complex-cognitive-systems.md
      lecture-notes/
          index.md
          2017-12-21.computational-neuroscience-uw.d/
              math*.opt.png
              2017-12-21.computational-neuroscience-uw.md
          2019-07-05.complex-cognitive-systems.d/
              math*.opt.png
              conv*.opt.png
              Damped_sinewave*.opt.svg
              phase-space.gif
              Resonance.opt.svg
              t2*.opt.png
              t2stroboscopic.opt.svg
  tag/
      index.md
  vcs/
      index.md
  

• CC-BY-SA 3.0

  log/
      lecture-notes/
          2019-07-05.complex-cognitive-systems.d/
              sinusoide.opt.png
              Euler's_formula.opt.svg
  

• CC-BY 4.0

  LICENSE.md
  log/
      2017-12-06.pachelbels-canon-piano-transcription.d/
          Canone_per_tre_violini_e_basso_(piano_transcription).patch
          Canone_per_tre_violini_e_basso_(piano_transcription).pdf
          *.ly
          color.ily
          *.svg
  

• CC0 1.0 (Universal Public Domain Dedication)

  licenses/
      CC-BY-SA-4.0.txt
      CC-BY-4.0.txt
  

• UNLICENSE (also a public domain dedication)

  _layouts/
      analytics.html
      _base.html
      footer.html
      home.html
      index.html
      page.html
      search.html
      sharing.html
      simple_page.html
      tag.html
      util.html
  _python/
      filters.py
      __init__.py
  _sh/
      redir_template.sh
      trim_comments.sh
  css/
      10-readability.css
      20-layout.css
      30-basic-eyecandy.css
      30-basic-eyecandy-svg.css
      40-syntax-highlight.css
      _README.md
  

• public domain dedication (other)

  img/
      bitcoin.opt.svg (https://web.archive.org/web/20170614092856/http://www.canbike.org/information-technology/bitcoin-logo-png-svg.html)
  

• not eligible for copyright (public domain too)

  CNAME
  COPYRIGHT.txt
  robots.txt
  about/
      me.d/
          pgp-key.txt
  img/
      cc-by-sa.opt.svg (trademark: https://creativecommons.org/policies)
  log/
      lecture-notes/
          2019-07-05.complex-cognitive-systems.d/
              t3.Sierpinski.opt.svg
  

• unknown

  img/
      832766.opt.png
      paypal.gif
      liberapay.opt.svg
  licenses/
      UNLICENSE.txt
      CC0.txt
  log/
      lecture-notes/
          2019-07-05.complex-cognitive-systems.d/
              t3.4.1.opt.png
              t3.4.2.opt.png
              t3.4.3.opt.png
              t3.4.5.opt.png
  

Nonfree:

• log/2017-01-26.microblogging-bot-detection.d/IEEE_copyright_LICENSE.pdf

  log/
      2017-01-26.microblogging-bot-detection.d/
          average_variable_imp-edited.opt.svg
          botsdetwitter.opt.svg
          CITING.txt
          classifiers-greedy-cv-edited.opt.svg
          Features combination for the detection of malicious Twitter accounts.pdf
          IEEE_copyright_LICENSE.pdf
          math*.opt.png
          2017-01-26.microblogging-bot-detection.md
  

• unspecified

  log/
      2017-09-18.humor-puerto-vallarta.d/
          español.webm
          pajarito.webm