diff --git a/talks-public/2020-02-19-RDA-AMA/2020-02-19-RDA-AMA.org b/talks-public/2020-02-19-RDA-AMA/2020-02-19-RDA-AMA.org
index 52859f4..6e12622 100644
--- a/talks-public/2020-02-19-RDA-AMA/2020-02-19-RDA-AMA.org
+++ b/talks-public/2020-02-19-RDA-AMA/2020-02-19-RDA-AMA.org
@@ -1,591 +1,594 @@
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 #+TITLE: Archiving And Referencing All Software Source Code Using Software Heritage
 #+SUBTITLE: 
 #+AUTHOR: Roberto Di Cosmo
 #+EMAIL: roberto@dicosmo.org @rdicosmo @swheritage
 #+BEAMER_HEADER: \date{February 19th, 2020}
 #+BEAMER_HEADER: \title[Archiving And Referencing All Software Source Code]{Archiving And Referencing All Software Source Code}
 #+BEAMER_HEADER: \author[Roberto Di Cosmo \hspace{5em} www.dicosmo.org]{Roberto Di Cosmo\\[2em]}
 # #+BEAMER_HEADER: \setbeameroption{show notes on second screen}
 #+BEAMER_HEADER: \setbeameroption{hide notes}
 #+KEYWORDS: software heritage legacy preservation knowledge mankind technology
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 #
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 #+LATEX: \addtocounter{framenumber}{-1}
 
 * Introduction
   #+INCLUDE: "../../common/modules/rdc-bio.org::#main" :only-contents t :minlevel 2
 ** The knowledge is in the /source code/
    #+INCLUDE: "../../common/modules/source-code-different-short.org::#thesourcecode" :only-contents t :minlevel 3
 ** Source code is /special/
 *** /Executable/ and /human readable/ knowledge \hfill copyright law
     /“Programs must be written for people to read, and only incidentally for machines to execute.”/\\
     \hfill Harold Abelson
 #+BEAMER: \pause
 *** Software /evolves/ over time
     - projects may last decades
     - the /development history/ is key to its /understanding/
 #+BEAMER: \pause
 *** Complexity :B_picblock:
     :PROPERTIES:
     :BEAMER_env: picblock
     :BEAMER_OPT: pic=python3-matplotlib.pdf, width=.6\linewidth
     :END:
     - /millions/ of lines of code
     - large /web of dependencies/
       + easy to break, difficult to maintain
     - sophisticated /developer communities/
 * Academia's evolving practice 
 ** Software is a pillar of Science ...
 *** Software is everywhere in modern science
     :PROPERTIES:
     :BEAMER_COL: .6
     :BEAMER_env: block
     :END:
       #+BEGIN_QUOTE
       [...] the vast majority describe [...] 
       or software that have become essential in their fields.
 
       \mbox{}\hfill Top 100 papers (\href{http://www.nature.com/news/the-top-100-papers-1.16224}{Nature, 2014})
       #+END_QUOTE
 
 #+BEAMER: \pause
 
 *** 
     :PROPERTIES:
     :BEAMER_COL: .45
     :END:
     #+latex: \begin{center}
     #+ATTR_LATEX: :width \extblockscale{\linewidth}
     file:papermountain.jpg
     #+latex: \end{center}
 
 #+BEAMER: \pause
 
 *** 
     :PROPERTIES:
     :BEAMER_env: ignoreheading
     :END:
     #+BEGIN_QUOTE
     Sometimes, if you dont have the software, you dont have the data
     
     \mbox{}\hfill Christine Borgman, Paris, 2018
     #+END_QUOTE
 ** ... a /forgotten/ pillar of Open Science
 *** Lack of recognition 
     :PROPERTIES:
     :BEAMER_env: block
     :END:
     not (yet) a first class citizen
     - in the EOSC plan
 #    - in the EU copyright reform
     - in the scholarly world
 #+BEAMER: \pause
 *** Lack of consensus on how to
     :PROPERTIES:
     :BEAMER_env: block
     :END:
     - /archive/ software
     - /choose/ a license
     - /cite/ a software project
 ** Pressure to make the source code available is raising
 *** Why 
      :PROPERTIES:
     :BEAMER_col: 0.48
     :BEAMER_env: block
     :END:
      Necessary to...
     - /reproduce/ and /verify/,
     - /modify/ and /evolve/, *building new experiments* from old ones
 #+BEAMER: \pause
 *** When and where
     :PROPERTIES:
     :BEAMER_col: 0.48
     :BEAMER_env: block
     :END:
     - debate started end of first 2000 decade (bio, statistics, medicine...)
     - growing in Computer Science since the [[https://www.artifact-eval.org/about.html][ESEC/FSE 2011 Artifact Evaluation Award]]
     #+BEAMER: \pause
 *** A wealth of initiatives...
    - Policies: ACM [[https://www.acm.org/publications/policies/artifact-review-badging][Artifact Review and Badging]], AEC, ...
    - Working groups: [[https://www.force11.org/software-citation-principles][FORCE11]], [[https://www.rd-alliance.org/groups/software-source-code-ig][RDA]], [[https://www.ouvrirlascience.fr/logiciels-libres-et-open-source/][SPSO]], ...
 #   - Metrics: [[https://www.ouvrirlascience.fr/about-the-proposal-for-software-indicators-in-open-science-monitor-3/][Open Science Monitor]] (Elsevier!), ...
    - Journals: [[https://www.ipol.im/][IPOL]], ReScience, InsightJournal, JOSS, eLife, ACM DL, ...
    - Repositories: FigShare, Zenodo, ...
    - Common infrastructures: [[https://www.softwareheritage.org][Software Heritage]]
 ** What is at stake \hfill in increasing order of difficulty
 \vspace{-7pt}
 *** Archival
     Research software artifacts must be properly *archived*\\
     \hfill make it sure we can /retrieve/ them (/reproducibility/)
 #+BEAMER: \pause
 *** Identification
     Research software artifacts must be properly *referenced*\\
     \hfill make it sure we can /identify/ them (/reproducibility/)
 #+BEAMER: \pause
 *** Metadata
     Research software artifacts must be properly *described*\\
     \hfill make it easy to /discover/ them (/visibility/)
 #+BEAMER: \pause
 *** Citation
     Research software artifacts must be properly *cited* /(not the same as referenced!)/\\
     \hfill to give /credit/ to authors (/evaluation/!)
 #+BEAMER: \pause
 *** :B_ignoreheading:
     :PROPERTIES:
     :BEAMER_env: ignoreheading
     :END:
 \vspace{-5pt}
 \hfill Let's focus on the /first two!/ \hfill\mbox{}
 * Archiving and referencing /all/ the source code: Software Heritage
   #+INCLUDE: "../../common/modules/swh-goals-oneslide-vertical.org::#goals" :minlevel 2
 ** Software Heritage: a revolutionary infrastructure \hfill bit.ly/swhpaper
   :PROPERTIES:
   :CUSTOM_ID: hilights
   :END:
 *** /All/ the software source code
    #+latex: \centering
    #+latex: \mbox{}\hfill\includegraphics[width=\extblockscale{.35\linewidth}]{swh-dataflow-merkle.pdf}\hfill\pause
    #+latex: \includegraphics[width=\extblockscale{.75\linewidth}]{2019-09-archive-growth.png}\hfill\mbox{}\\
 #+BEAMER: \pause
    The largest software source code archive /ever/ 
 *** /Uniform and intrinsic/ identifiers for reproducibility         :B_block:
     :PROPERTIES:
     :BEAMER_env: block
     :END:
    Tracking over /20 billion software artifacts/, and counting... \hfill \url{bit.ly/swhpidpaper}
    #+BEAMER: \pause
 *** Adoption highlights
     - Wikidata https://www.wikidata.org/wiki/Property:P6138
     - reference archive for /swmath.org/, HAL, etalab 
     - part of the french National Plan for Open Science
     - ...
 * Zoom on the SWH-ID
 ** Modern software development
    #+INCLUDE: "../../common/modules/vcs-history.org::#timeline" :only-contents t :minlevel 3   
 ** /Intrinsic/ identifiers for modern software development
    #+INCLUDE: "../../common/modules/vcs-history.org::#dvcs-to-merkle" :only-contents t :minlevel 3   
 ** The SWH-ID schema: syntax and semantics
 #+INCLUDE: "../../common/modules/swh-id-syntax.org::#swh-id-syntax" :only-contents t :minlevel 3
 
 ** Walkthrough the Parmap article
 *** Danelutto and Di Cosmo, 2012
     :PROPERTIES:
     :BEAMER_COL: .5
     :BEAMER_env: block
     :END:
     #+latex: \begin{center}
     #+ATTR_LATEX: :width \extblockscale{1.45\linewidth}
     file:parmap-article-conclusion.png
     #+latex: \end{center}
 
   #+latex: \begin{tiny}
   M. Danelutto and R. Di Cosmo, /A “Minimal Disruption” skeleton
 experiment: Seamless map & reduce embedding in OCaml,” Procedia
 CS, vol. 9, pp. 1837–1846, 2012. [Online]. Available: 
 \href{http://dx.doi.org/10.1016/j.procs.2012.04.202}{[DOI: 10.1016/j.procs.2012.04.202]}
   #+latex: \end{tiny}
 
  #+BEAMER: \pause
 *** 
     :PROPERTIES:
     :BEAMER_COL: .5
     :END:
     #+latex: \vspace{-10pt}
     #+latex: \begin{center}
     #+latex: \begin{tiny} 
     Accessed on the 6th of February 2020
     #+latex: \end{tiny}
     #+latex: \vspace{-15pt}
     #+ATTR_LATEX: :width \extblockscale{1.5\linewidth}
     file:parmap-on-gitorious.png
     #+BEAMER: \pause
     #+latex: \vspace{-10pt}
     
     #+latex: \vspace{-15pt}
     #+ATTR_LATEX: :width \extblockscale{1.5\linewidth}
     file:parmap-moved-to-github.png
     #+latex: \vspace{-15pt}
     #+latex:\begin{tcolorbox}
     #+latex: \begin{tiny}
     \href{https://archive.softwareheritage.org/swh:1:snp:78209702559384ee1b5586df13eca84a5123aa82;origin=https://gitorious.org/parmap/parmap.git/}{swh:1:snp:78209702559384ee1b5586df13eca84a5123aa82}
     #+latex: \end{tiny} 
     #+latex:\end{tcolorbox}\noindent
     #+latex: \end{center}
     
      #+BEAMER: \pause
 
 *** :B_ignoreheading:
     :PROPERTIES:
     :BEAMER_env: ignoreheading
     :END:
 
 #+latex: \vspace{+5pt}
 \hfill  Only 8 years later ! \hfill\mbox{}
    
 ** Referencing an algorithm in the source code
 \vspace{-20pt}
 *** Figure 1 in [Danelutto and Di Cosmo, 2012]
     :PROPERTIES:
     :BEAMER_COL: .5
     :BEAMER_env: block
     :END:
     \begin{tiny}
     Parmap's implementation of the distribution, fork, and recollection phase 
     \end{tiny}
     #+latex: \begin{center}
     #+ATTR_LATEX: :width \extblockscale{\linewidth}
     file:article-parmap-code.png
     #+latex: \end{center}
 
 #+BEAMER: \pause
 *** 
     :PROPERTIES:
     :BEAMER_COL: .5
     :END:
     \vspace{+20pt}
     #+latex: \begin{center}
     #+latex: \vspace{-20pt}
     #+ATTR_LATEX: :width \extblockscale{1.5\linewidth}
     file:parmap-cnt.png
 #+BEAMER: \pause
     \begin{tcolorbox}
     \begin{tiny}
     \href{https://archive.softwareheritage.org/swh:1:cnt:d5214ff9562a1fe78db51944506ba48c20de3379;origin=https://gitorious.org/parmap/parmap.git;lines=101-143/}
     {swh:1:cnt:d5214ff9562a1fe78db51944506ba48c20de3379;\\
     origin=https://gitorious.org/parmap/parmap.git;lines=101-143}
     \end{tiny}   
     \end{tcolorbox}\noindent
     #+latex: \end{center}
 
 ** A solution to address the reproducibility crisis
 
 *** McBane. 2020
     :PROPERTIES:
     :BEAMER_COL: .48
     :BEAMER_env: block
     :END:
     #+latex: \begin{center}
     #+ATTR_LATEX: :width \extblockscale{1.45\linewidth}
     file:swh-id-example-McBane2020-ReScience.png
     #+latex: \end{center}
 
     #+latex: \begin{tiny}
     George C. McBane. (2020). [Rp] Reproduction of interaction second virial coefficient 
     calculation for H$_2$--CO interactions [J. Chem. Phys. vol. 112, 4417 (2000)]. 
     Rescience C, 6(1), #1. \url{http://doi.org/10.5281/zenodo.3630224}
     #+latex: \end{tiny}
     #+BEAMER: \pause
 *** 
     :PROPERTIES:
     :BEAMER_COL: .48
     :END:
     \vspace{+20pt}
     #+latex: \begin{center}
     #+latex: \vspace{-20pt}
     #+ATTR_LATEX: :width \extblockscale{1.2\linewidth}
     file:ReScience-McBane-snp-example.png
 #+BEAMER: \pause
     \begin{tcolorbox}
     \begin{tiny}
     \href{https://archive.softwareheritage.org/swh:1:snp:85dcb31156194ea3bad60f06c1e7999e7bb1a90c/}
     {swh:1:snp:85dcb31156194ea3bad60f06c1e7999e7bb1a90c}
     \end{tiny}   
     \end{tcolorbox}\noindent
     #+latex: \end{center}
 
 ** Zoom on the trust model for identifiers
    \vspace{-5pt}
 *** Trust model for usual DOIs :B_block:
     :PROPERTIES:
     :BEAMER_COL: .5
     :BEAMER_env: block
     :END:
 #+ATTR_LATEX: :width \linewidth
 file:doi-vs-pid-1.pdf
 #+BEAMER: \pause
 *** Trust model for DOIs with checksums :B_block:
     :PROPERTIES:
     :BEAMER_COL: .5
     :BEAMER_env: block
     :END:
 #+ATTR_LATEX: :width \linewidth
 file:doi-vs-pid-2.pdf
 *** :B_ignoreheading:
     :PROPERTIES:
     :BEAMER_env: ignoreheading
     :END:
 #+BEAMER: \pause
 *** Trust model for SWH-IDs
     :PROPERTIES:
     :END:
 #+ATTR_LATEX: :width .3\linewidth
 file:doi-vs-pid-3.pdf
 
 ** A few examples                                                  :noexport:
 *** 
     Let's look at some famous exceprts of source code
 #+BEAMER: \pause
 *** Apollo 11 source code ([[https://archive.softwareheritage.org/swh:1:cnt:64582b78792cd6c2d67d35da5a11bb80886a6409;origin=https://github.com/virtualagc/virtualagc;lines=245-261/][excerpt]])                           :B_block:BMCOL:
     :PROPERTIES:
     :BEAMER_col: 0.48
     :BEAMER_env: block
     :END:
    #+LATEX: \includegraphics[width=\linewidth]{apollo-11-cranksilly.png}
    # excerpt of routine that asks astronaut to turn around the LEM
 #+BEAMER: \pause
 *** Quake III source code ([[https://archive.softwareheritage.org/swh:1:cnt:bb0faf6919fc60636b2696f32ec9b3c2adb247fe;origin=https://github.com/id-Software/Quake-III-Arena;lines=549-572/][excerpt]])                           :B_block:BMCOL:
     :PROPERTIES:
     :BEAMER_col: 0.45
     :BEAMER_env: block
     :END:
    #+LATEX: \includegraphics[width=\linewidth]{quake-carmack-sqrt-1.png}
    # smart efficient implementation of 1/sqrt(x) on a CPU without special support
 #+BEAMER: \pause
 *** :B_ignoreheading:
     :PROPERTIES:
     :BEAMER_env: ignoreheading
     :END:
 *** It works!
     we have /intrinsic/ identifiers for all 20+ billion objects in the archive
 
 * Practical guidelines for archiving and referencing
 ** Prepare your software source code \hfill \href{https://www.softwareheritage.org/save-and-reference-research-software/}{complete guidelines}
 # scientific software (save code now) use-case (one slide)- preapre
 #+INCLUDE: "../../common/modules/swh-scientific-preservation.org::#prepare" :only-contents t :minlevel 3
 
 ** Submit save request on SWH \hfill \href{https://www.softwareheritage.org/save-and-reference-research-software/}{complete guidelines}
 # scientific software (save code now) use-case (one slide)
 #+INCLUDE: "../../common/modules/swh-scientific-preservation.org::#save" :only-contents t :minlevel 3
 
 ** Reference software artifacts in your articles \hfill \href{https://www.softwareheritage.org/save-and-reference-research-software/}{complete guidelines}
 # scientific software (save code now) use-case (one slide)
 #+INCLUDE: "../../common/modules/swh-scientific-preservation.org::#reference" :only-contents t :minlevel 3
 ** Reference software artifacts in your articles \hfill \href{https://www.softwareheritage.org/save-and-reference-research-software/}{complete guidelines}
 #+INCLUDE: "../../common/modules/swh-scientific-preservation.org::#referencecontd" :only-contents t :minlevel 3
 
 * What about metadata and citation?
 ** It's more complex than it seems!
 *** Software is complex
  - Structure :: monolithic/composite; self-contained/external dependencies
  - Lifetime :: one-shot/long term
  - Community :: one man/one team/distributed community
  - Authorship :: complex set of roles
  - Authority :: institutions/organizations/communities/single person
 #+BEAMER: \pause
 *** Various granularities
  - Exact status of the source code :: for reproducibility, e.g.
 #+latex:            \emph{``you can find at \href{https://archive.softwareheritage.org/swh:1:cnt:cdf19c4487c43c76f3612557d4dc61f9131790a4;lines=146-187/}{swh:1:cnt:cdf19c4487c43c76f3612557d4dc61f9131790a4;lines=146-187} the core algorithm used in this article''}
 
  - (Major) release :: \emph{``This functionality is available in OCaml version 4''}
 
  - Project :: \emph{``Inria has created OCaml and Scikit-Learn''}.
 ** We are not alone                                                :noexport:
 *** Research Software does not exist in isolation                :B_picblock:
     :PROPERTIES:
     :BEAMER_env: picblock
     :BEAMER_OPT: pic=python3-matplotlib.pdf, width=.6\linewidth, leftpic=true
     :END:
     large /web of dependencies/ on non-research software
 #+BEAMER: \pause
 *** Industry and developers have been here                          :B_block:
     :PROPERTIES:
     :BEAMER_env: block
     :BEAMER_COL: .5
     :END:
     - NSRL (NIST)
     - SPDX (Linux Foundation)
     - SWH-ID (Software Heritage)
     - SWID (ISO Standard)
     - Wikidata Software Properties
 #+BEAMER: \pause
 *** We must                                                         :B_block:
     :PROPERTIES:
     :BEAMER_env: block
     :BEAMER_COL: .5
     :END:
     - accept the complexity
     - avoid reinventing the wheel
     - connect with existing communities of practice
 
 ** Proposals for metadata and citation in the scholarly world
 *** Refined ontology for contributors                               :B_block:
     :PROPERTIES:
     :BEAMER_COL: .55
     :BEAMER_env: block
     :END:
     - Design, Architecture, 
     - Coding, Testing, Debugging,
     - Documentation, Maintenance, Support,
     - Management
 #    \hfill see also [[https://www.casrai.org/credit.html][CRediT]], [[https://geodynamics.org/cig/metadata/?software=aspect&version=2.1.0][Geodynamics]]
 #+BEAMER: \pause
 *** Reference is distinct from citation :B_block:
     :PROPERTIES:
     :BEAMER_COL: .5
     :BEAMER_env: block
     :END:
     - *Reference* is for /reproducibility/\\
       \hfill and now we can get it right!
     - *Citation* is for /credit/\\
       \hfill and the jury is still out...
     \hfill They must not be conflated
 *** :B_ignoreheading:
     :PROPERTIES:
     :BEAMER_env: ignoreheading
     :END:
 #+BEAMER: \pause
 *** Keep the human in the loop :B_block:
     :PROPERTIES:
     :BEAMER_env: block
     :END:
     When /credit/ is at stake, automation/crowdsourcing is not enough!\\
     \hfill Humans /are needed/ to get /quality information/
+#+BEAMER: \pause
 *** :B_ignoreheading:
     :PROPERTIES:
     :BEAMER_env: ignoreheading
     :END:
-    Experiments are ongoing on /moderated/ software deposit.
+*** Experiments are ongoing on /moderated/ software deposit ... (IDCC 2020)
+    /Curated Archiving of Research Software Artifacts : lessons learned from the French open archive (HAL)/
+    https://hal.archives-ouvertes.fr/hal-02475835v1
 ** Conclusion
 *** Research software :B_block:
     :PROPERTIES:
     :BEAMER_env: block
     :BEAMER_COL: .5
     :END:
     - pillar of open science
 #    - not just data
     - finally in the limelight
 *** Doing it right is not easy :B_block:
     :PROPERTIES:
     :BEAMER_env: block
     :BEAMER_COL: .5
     :END:
     - /simplistic/ approaches, "just data", ...
 #    - /directives/ are coming
     - soon part of /research evaluation/
 ***                                                         :B_ignoreheading:
     :PROPERTIES:
     :BEAMER_env: ignoreheading
     :END:
 #+BEAMER: \pause
 *** You can help make a change
     - leverage Software Heritage in conferences and journals for /archival/ and /reference/
     - join the conversation on /software citation/ and /software evaluation/ criteria
 #+BEAMER: \pause
 *** Where can you participate?
     - Software Source Code Interest group - \href{https://www.rd-alliance.org/groups/software-source-code-ig}{RDA-SSC IG}
     - Software Source code Identification Working Group - \href{https://www.rd-alliance.org/groups/software-source-code-identification-wg}{RDA-Force11-SCID WG}
     - Software Citation Implementation Working Group - \href{https://www.force11.org/group/software-citation-implementation-working-group}{Force11-SCIWG}
 
 ** Come in, we're open !
 #+INCLUDE: "../../common/modules/last-slide-references.org::#references-identifiers" :only-contents t :minlevel 3
 
 #+TODO: include reference  Pierre Alliez, Roberto Di Cosmo, Benjamin Guedj, Alain Girault, Mohand-Said Hacid, et al.. Attributing and Referencing (Research) Software: 
 # Best Practices and Outlook from Inria. Computing in Science & Engineering, IEEE, 2019, pp.1-14. 
 # ⟨10.1109/MCSE.2019.2949413⟩. ⟨hal-02135891v2⟩ 
 
 * Appendix :B_appendix:
   :PROPERTIES:
   :BEAMER_env: appendix
   :END:
 * Worked example Merkle tree
 ** A worked example
   #+LATEX: \centering\forcebeamerstart
   #+LATEX: \only<1>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/merkle_1.pdf}}}
   #+LATEX: \only<2>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/contents.pdf}}}
   #+LATEX: \only<3>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/merkle_2_contents.pdf}}}
   #+LATEX: \only<4>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/directories.pdf}}}
   #+LATEX: \only<5>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/merkle_3_directories.pdf}}}
   #+LATEX: \only<6>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/revisions.pdf}}}
   #+LATEX: \only<7>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/merkle_4_revisions.pdf}}}
   #+LATEX: \only<8>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/releases.pdf}}}
   #+LATEX: \only<9>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/merkle_5_releases.pdf}}}
   #+LATEX: \only<10>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/snapshots.pdf}}}
   #+LATEX: \forcebeamerend
 * History of VCS                                                   :noexport:
 ** Evolution of software development
    #+INCLUDE: "../../common/modules/vcs-history.org::#timeline" :only-contents t :minlevel 3   
 ** Foundations of modern DVCS
 #+INCLUDE: "../../common/modules/vcs-history.org::#dvcs-to-merkle" :only-contents t :minlevel 3
 
 ** In a picture \hfill (from https://github.com/progit/progit2)
 #+INCLUDE: "../../common/modules/vcs-history.org::#vcs-explained" :only-contents t :minlevel 3
 
 ** A massive adoption
 #+INCLUDE: "../../common/modules/vcs-history.org::#adoption" :only-contents t :minlevel 3
 * Connecting communities                                           :noexport:
 ** FORCE11 Software Citation Implementation WG
 *** Spawned from the FORCE11 Software Citation WG (2/2016)
     led by Daniel Katz, Kyle Niemeyer and Arfon Smith
 *** Co-chairs
     Neil Chue Hong, Martin Fenner, Daniel Katz
 #+TODO:fill in with links 
 
 ** RDA Software Source Code Interest Group
 *** Co-chairs
     Roberto Di Cosmo, Neil Chue Hong, Mingfang Wu, Julia Collins
 *** Objectives
     a forum for discussing /software/ inside RDA
 *** Chronology
     - RDA 10, Montreal 9/2017 ::    motivations, survey of ontologies, metadata use cases
     - RDA 11, Berlin 3/2018 ::    identification of gaps in metadata
     - RDA 13, Philadelphia 4/2019 ::    FAIR for Software Source Code
     - RDA 15, Melbourne 3/2020 ::    Should we create a FAIR4Software WG? 
 *** Web page
     https://www.rd-alliance.org/groups/software-source-code-ig
 ** RDA WG on Software Source Code Identification
 *** Joint RDA & FORCE11 WG which spawned from
     RDA's Software Source Code IG & FORCE11's SCIWG
 *** Co-chairs
     Roberto Di Cosmo, Daniel Katz, Martin Fenner
 *** Objectives
     - bring together people involved/interested in /software identification/
     - produce concrete recommendations for the academic community
 *** Chronology
     - FORCE2019, Edinburgh 10/2019 ::    Research Software Hackathon - identification track
     - RDA 15, Melbourne 3/2020 ::    Software identification use cases
 *** 
     https://www.rd-alliance.org/groups/software-source-code-identification-wg
 ** Inria's Software Citation Working Group
 *** Members
     \hfill task force of Inria's scientific council
 *** Mission
     - map the landscape
     - collect best practices
     - identify potential Inria contributions
     - make recommendations
 *** First outcome
      Position paper available from
      \hfill https://hal.archives-ouvertes.fr/hal-02135891
 
diff --git a/talks-public/2020-02-25-SophiaForumNumerica/2020-02-25-SophiaForumNumerica.org b/talks-public/2020-02-25-SophiaForumNumerica/2020-02-25-SophiaForumNumerica.org
index b28dbf0..c5cd6f7 100644
--- a/talks-public/2020-02-25-SophiaForumNumerica/2020-02-25-SophiaForumNumerica.org
+++ b/talks-public/2020-02-25-SophiaForumNumerica/2020-02-25-SophiaForumNumerica.org
@@ -1,598 +1,667 @@
 #+COLUMNS: %40ITEM %10BEAMER_env(Env) %9BEAMER_envargs(Env Args) %10BEAMER_act(Act) %4BEAMER_col(Col) %10BEAMER_extra(Extra) %8BEAMER_opt(Opt)
 #+TITLE: Archiving, referencing and attributing research software
 #+SUBTITLE: towards software as a first class citizen
 # #+AUTHOR: Roberto Di Cosmo
 # #+EMAIL: roberto@dicosmo.org @rdicosmo @swheritage
 #+BEAMER_HEADER: \date{February 25th, 2020}
 #+BEAMER_HEADER: \title[(CC-BY 4.0) Research Software]{Archiving, referencing and attributing research software}
 #+BEAMER_HEADER: \author[Roberto Di Cosmo]{Roberto Di Cosmo\\Inria and Université de Paris}
 # #+BEAMER_HEADER: \setbeameroption{show notes on second screen}
 #+BEAMER_HEADER: \setbeameroption{hide notes}
 #+KEYWORDS: software heritage legacy preservation knowledge mankind technology
 #+LATEX_HEADER: \usepackage{tcolorbox}
 #+LATEX_HEADER: \definecolor{links}{HTML}{2A1B81}
 #+LATEX_HEADER: \hypersetup{colorlinks,linkcolor=,urlcolor=links}
 
 #
 # prelude.org contains all the information needed to export the main beamer latex source
 # use prelude-toc.org to get the table of contents
 #
 
 #+INCLUDE: "../../common/modules/prelude-toc.org" :minlevel 1
 
 
 #+INCLUDE: "../../common/modules/169.org"
 
 # +LaTeX_CLASS_OPTIONS: [aspectratio=169,handout,xcolor=table]
 
 #+LATEX_HEADER: \usepackage{bbding}
 #+LATEX_HEADER: \DeclareUnicodeCharacter{66D}{\FiveStar}
 
 #
 # If you want to change the title logo it's here
 #
 # +BEAMER_HEADER: \titlegraphic{\includegraphics[width=0.7\textwidth]{SWH-logo}}
 
 # aspect ratio can be changed, but the slides need to be adapted
 # - compute a "resizing factor" for the images (macro for picblocks?)
 #
 # set the background image
 #
 # https://pacoup.com/2011/06/12/list-of-true-169-resolutions/
 #
 #+BEAMER_HEADER: \pgfdeclareimage[height=90mm,width=160mm]{bgd}{swh-world-169.png}
 #+BEAMER_HEADER: \setbeamertemplate{background}{\pgfuseimage{bgd}}
 #+LATEX: \addtocounter{framenumber}{-1}
 * Software Source Code: a precious heritage
 ** Software source code: a precious part of our heritage
    #+INCLUDE: "../../common/modules/source-code-different-short.org::#softwareisdifferent" :only-contents t :minlevel 3
 ** Source code is a /special/ and endangered heritage
 *** /Executable/ and /human readable/ knowledge \hfill copyright law :noexport:
     /“Programs must be written for people to read, and only incidentally for machines to execute.”/\\
     \hfill Harold Abelson
 #+BEAMER: \pause
 *** Software /evolves/ over time
     - projects may last decades
     - the /development history/ is key to its /understanding/
 #+BEAMER: \pause
 *** Complexity :B_picblock:
     :PROPERTIES:
     :BEAMER_env: picblock
     :BEAMER_OPT: pic=python3-matplotlib.pdf, width=.6\linewidth
     :END:
     - /millions/ of lines of code
     - large /web of dependencies/
       + easy to break, difficult to maintain
     - sophisticated /developer communities/
 *** :B_ignoreheading:
     :PROPERTIES:
     :BEAMER_env: ignoreheading
     :END:
 #+BEAMER: \pause
 *** Precious, endangered /Executable/ and /human readable/ knowledge
     key people *are passing away* ...\\
     \hfill no organised effort to catalog and archive it
 * Software Source Code: a (forgotten) pillar of Science
 ** Software Source code: pillar of Open Science
 *** Software is everywhere in modern research                    :B_picblock:
     :PROPERTIES:
     :BEAMER_opt: pic=papermountain, leftpic=true, width=.3\linewidth
     :BEAMER_env: picblock
     :BEAMER_COL: .6
     :END:
 #+BEGIN_QUOTE
 [...] software [...] essential in their fields.
 
 \mbox{}\hfill Top 100 papers (Nature, 2014)
 #+END_QUOTE
 #+BEGIN_QUOTE
 Sometimes, if you dont have the software, you dont have the data
 
 \mbox{}\hfill Christine Borgman, Paris, 2018
 #+END_QUOTE
 # http://www.nature.com/news/the-top-100-papers-1.16224
 #+BEAMER: \pause
 *** Open Science: three pillars                                     :B_block:
     :PROPERTIES:
     :BEAMER_COL: .45
     :BEAMER_env: block
     :END:
 #+latex: \begin{center}
 #+ATTR_LATEX: :width \extblockscale{\linewidth}
 file:PreservationTriangle.png
 #+latex: \end{center}
 #+BEAMER: \pause
 *** :B_ignoreheading:
     :PROPERTIES:
     :BEAMER_env: ignoreheading
     :END:
-*** Nota bene
-    \hfill The links in the picture are *essential*
+*** Source code is needed to:
+    - /reproduce/ and /verify/,
+    - /modify/ and /evolve/, *building new experiments* from old ones
+    \mbox{}\\
+    \hfill N.B.: the /links/ in the picture are *essential*
 ** The state of the art (in CS!) is far from ideal
 *** ICSE (Zannier, Melrik, Maurer, 2006)
     - complete absence of replication studies
 *** ACM TOSEM 2001 to 2006 \hfill C. Ghezzi http://bit.ly/tosemreprod
     - 60% of all papers have tools: *only 20%*  /installable/
 *** Collberg's 2015 study \hfill http://reproducibility.cs.arizona.edu/
     - 601 mainstream papers: 508 with tools, *only 40%* /installable/
 #+BEAMER: \pause
 *** Main reasons
     \hfill source code (/or the right version of it/) cannot be found
 ** Where we stand
-*** A wealth of initiatives!
+*** A wealth of initiatives! :B_block:
+    :PROPERTIES:
+    :BEAMER_env: block
+    :END:
    - Policies: ACM [[https://www.acm.org/publications/policies/artifact-review-badging][Artifact Review and Badging]], ...
    - Working groups: [[https://www.force11.org/software-citation-principles][FORCE11]], [[https://www.rd-alliance.org/groups/software-source-code-ig][RDA]], [[https://www.ouvrirlascience.fr/logiciels-libres-et-open-source/][SPSO]], ...
    - Metrics: [[https://www.ouvrirlascience.fr/about-the-proposal-for-software-indicators-in-open-science-monitor-3/][Open Science Monitor]] (Elsevier!), ...
    - Journals: [[https://www.ipol.im/][IPOL]], ReScience, InsightJournal, eLife, ACM DL, ...
    - Repositories: FigShare, Zenodo, ...
 #+BEAMER: \pause
+*** :B_ignoreheading:
+    :PROPERTIES:
+    :BEAMER_env: ignoreheading
+    :END:
 *** 
     \hfill but ... \hfill \mbox{}
 *** Lack of recognition 
     :PROPERTIES:
     :BEAMER_env: block
     :BEAMER_COL: .5
     :END:
     not (yet) a first class citizen
     - in the EOSC plan
 #    - in the EU copyright reform
     - in the scholarly works
 #+BEAMER: \pause
 *** Lack of proper guidance on how to
     :PROPERTIES:
     :BEAMER_env: block
     :BEAMER_COL: .5
     :END:
     - /archive/ and /reference/ software
     - choose a license
     - /cite/ a software project
 # #+BEAMER: \pause
 # *** :B_ignoreheading:
 #     :PROPERTIES:
 #     :BEAMER_env: ignoreheading
 #     :END:
 # *** Lack of basic prerequisites to reproducibility
 #     See a discussion in \url{annex.softwareheritage.org/talks/2018/2018-09-17-STScI_public.pdf} 
 ** A plurality of needs
 *** Researcher
     - archive and reference sw used in articles
     - get credit for the software they develop
     - verify/reproduce/improve results
 #+BEAMER: \pause
 *** Laboratory/team
     - track software contributions
     - produce up-to date report / web page
 #+BEAMER: \pause
 *** University/Research Organization
     - central view of research software assets
     - tech transfer
     - impact metrics
 ** What is at stake \hfill in increasing order of difficulty
+\vspace{-7pt}
 *** Archival
     Research software artifacts must be properly *archived*\\
     \hfill make it sure we can /retrieve/ them (/reproducibility/)
 #+BEAMER: \pause
 *** Identification
     Research software artifacts must be properly *referenced*\\
     \hfill make it sure we can /identify/ them (/reproducibility/)
 #+BEAMER: \pause
 *** Metadata
     Research software artifacts must be properly *described*\\
     \hfill make it easy to /discover/ them (/visibility/)
 #+BEAMER: \pause
 *** Citation
     Research software artifacts must be properly *cited* /(not the same as referenced!)/\\
     \hfill to give /credit/ to authors (/evaluation/!)
+*** :B_ignoreheading:
+    :PROPERTIES:
+    :BEAMER_env: ignoreheading
+    :END:
+\pause
+\vspace{-5pt}
+\hfill Let's focus on the /first two!/ \hfill\mbox{}
 * Meet Software Heritage
 ** Software Heritage in a nutshell \hfill www.softwareheritage.org
 #+BEAMER: \transdissolve
 #+INCLUDE: "../../common/modules/swh-goals-oneslide-vertical.org::#goals" :only-contents t :minlevel 3
 ** An international, non profit initiative\hfill built for the long term
   :PROPERTIES:
   :CUSTOM_ID: support
   :END:
 *** Sharing the vision                                              :B_block:
   :PROPERTIES:
   :CUSTOM_ID: endorsement
   :BEAMER_COL: .5
   :BEAMER_env: block
   :END:
    #+LATEX: \begin{center}{\includegraphics[width=\extblockscale{.4\linewidth}]{unesco_logo_en_285}}\end{center}
    #+LATEX: \vspace{-0.8cm}
    #+LATEX: \begin{center}\vskip 1em \includegraphics[width=\extblockscale{1.4\linewidth}]{support.pdf}\end{center}
     #+latex: \small And many more ...\\
     #+latex:\mbox{}~~~~~~~\tiny\url{www.softwareheritage.org/support/testimonials}
 *** Donors, members, sponsors                                       :B_block:
     :PROPERTIES:
     :CUSTOM_ID: sponsors
     :BEAMER_COL: .5
     :BEAMER_env: block
     :END:
    #+LATEX: \begin{center}\includegraphics[width=\extblockscale{.4\linewidth}]{inria-logo-new}\end{center}
    #+LATEX: \begin{center}
    # #+LATEX: \includegraphics[width=\extblockscale{.2\linewidth}]{sponsors-levels.pdf}
    #+LATEX: \colorbox{white}{\includegraphics[width=\extblockscale{1.4\linewidth}]{sponsors.pdf}}
    #+LATEX: \end{center}
 #   - sponsoring / partnership :: \hfill \url{sponsorship.softwareheritage.org}
 *** :B_ignoreheading:
     :PROPERTIES:
     :BEAMER_env: ignoreheading
     :END:
 *** Research collaboration                              :B_picblock:noexport:
   :PROPERTIES:
   :BEAMER_COL: .5
   :BEAMER_env: picblock
   :BEAMER_OPT: pic=Qwant_Logo, leftpic=true
   :END:
     source code search engine
 *** See more                                                       :noexport:
     \hfill\tiny\url{http:://www.softwareheritage.org/support/testimonials}
 *** Global network                                      :B_picblock:noexport:
     :PROPERTIES:
     :BEAMER_COL: .5
     :BEAMER_env: picblock
     :BEAMER_OPT: pic=fossid, leftpic=true, width=.3\linewidth
     :END:
      - first *independent mirror*
      - increased reliability
-** The largest software archive, a shared infrastructure
+** The largest software archive, a shared infrastructure           :noexport:
    #+latex: \begin{center}
    #+ATTR_LATEX: :width 0.7\linewidth
    file:SWH-as-foundation-slim.png
    #+latex: \end{center}
    #+BEAMER: \pause
    #+latex: \centering
    #+ATTR_LATEX: :width \extblockscale{.9\linewidth}
    file:2019-09-archive-growth.png
+** Largest software archive, principled \hfill \url{http://bit.ly/swhpaper}
+   #+latex: \begin{center}
+   #+ATTR_LATEX: :width 0.5\linewidth
+   file:SWH-as-foundation-slim.png
+   #+latex: \end{center}
+   #+BEAMER: \pause
+   #+latex: \centering
+   #+ATTR_LATEX: :width \extblockscale{.7\linewidth}
+   file:2020-02-archive-growth.png
+   #+BEAMER: \pause
+*** Technology
+    :PROPERTIES:
+    :BEAMER_col: 0.34
+    :BEAMER_env: block
+    :END:
+    - transparency and FOSS
+    - replicas all the way down
+*** Content (billions!)
+    :PROPERTIES:
+    :BEAMER_col: 0.32
+    :BEAMER_env: block
+    :END:
+    - *intrinsic identifiers*
+    - facts and provenance
+*** Organization
+    :PROPERTIES:
+    :BEAMER_col: 0.33
+    :BEAMER_env: block
+    :END:
+    - non-profit
+    - multi-stakeholder
+
 ** A peek under the hood
     #+BEAMER: \begin{center}
     #+BEAMER:   \mode<beamer>{\only<1>{\includegraphics[width=\extblockscale{1\textwidth}]{swh-dataflow-merkle-listers.pdf}}}
     #+BEAMER:   \only<2-3>{\includegraphics[width=\extblockscale{1\textwidth}]{swh-dataflow-merkle.pdf}}
     #+BEAMER: \end{center}
 #+BEAMER: \pause
 #+BEAMER: \pause
    /Global development history/ permanently archived in a /unique/ git-like Merkle DAG
    - *~400 TB* (uncompressed) blobs, *~20 B* nodes, *~280 B* edges
    #   - *GitHub*, Gitlab.com, Bitbucket, /Gitorious/, /GoogleCode/, GNU, PyPi, Debian, NPM...
 * Archive and reference /all/ the source code
 ** Archive and reference
 *** Software Heritage: a revolutionary infrastructure            :B_picblock:
     :PROPERTIES:
     :BEAMER_env: picblock
     :BEAMER_OPT: pic=PreservationTriangle.png,leftpic=true, width=.34\linewidth
     :END:
       - *universal archive* of all source code
 	+ we archive /all/ software: both research and non research
 	+ we /proactively collect software/ in a systematic way
       - *intrinsic* identifiers for *reproducibility*
         + identify software artefacts /without any third party/
         + cryptographically strong, compatible with git hashes
 #+BEAMER: \pause
+*** Demo
+   2012 Parmap paper [[http://www.dicosmo.org/Publications/Parmap2012.html][before]] and [[http://www.dicosmo.org/share/parmap_swh.pdf][after]]; [[https://xavierleroy.org/bibrefs/OCamlP3L-98.html][OCamlP3l paper]] for the [[https://github.com/ReScience/ten-years][Ten year challenge]]
+#+BEAMER: \pause
 *** 
     Full guidelines available! \hfill \tiny https://www.softwareheritage.org/save-and-reference-research-software/
-*** 
-    Save code now ... [[https://archive.softwareheritage.org/save/][in just a few clicks]]
-*** Demo
-   My 2012 Parmap paper [[http://www.dicosmo.org/Publications/Parmap2012.html][before]] and [[http://www.dicosmo.org/share/parmap_swh.pdf][after]]; other links: [[https://www.softwareheritage.org/2019/07/20/archiving-and-referencing-the-apollo-source-code/][Apollo 11]] (and [[https://www.softwareheritage.org/2019/07/20/archiving-and-referencing-the-apollo-source-code/][blog]]), [[https://archive.softwareheritage.org/swh:1:cnt:bb0faf6919fc60636b2696f32ec9b3c2adb247fe;origin=https://github.com/id-Software/Quake-III-Arena;lines=548-572/][Quake III Arena]]
+#+BEAMER: \pause
+# *** 
+#    Save code now ... [[https://archive.softwareheritage.org/save/][in just a few clicks]]
+***  
+     \hfill See also: [[https://www.softwareheritage.org/2019/07/20/archiving-and-referencing-the-apollo-source-code/][Apollo 11]] (and the [[https://www.softwareheritage.org/2019/07/20/archiving-and-referencing-the-apollo-source-code/][blog]] post!), [[https://archive.softwareheritage.org/swh:1:cnt:bb0faf6919fc60636b2696f32ec9b3c2adb247fe;origin=https://github.com/id-Software/Quake-III-Arena;lines=548-572/][Quake III Arena]]
 ** The SWH-ID schema
   # TODO: drawing with swh:1:cnt:xxxxxxx "exploded" and explained
   #+LATEX: \centering\forcebeamerstart
   #+LATEX: \only<1>{\includegraphics[width=\linewidth]{SWH-ID-1.png}}
   #+LATEX: \only<2>{\includegraphics[width=\linewidth]{SWH-ID-2.png}}
   #+LATEX: \only<3>{\includegraphics[width=\linewidth]{SWH-ID-3.png}}
   #+LATEX: \forcebeamerend
 ** A worked example
     #+LATEX: \centering\forcebeamerstart
     #+LATEX: \only<1>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/merkle_1.pdf}}}
     #+LATEX: \only<2>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/contents.pdf}}}
     #+LATEX: \only<3>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/merkle_2_contents.pdf}}}
     #+LATEX: \only<4>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/directories.pdf}}}
     #+LATEX: \only<5>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/merkle_3_directories.pdf}}}
     #+LATEX: \only<6>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/revisions.pdf}}}
     #+LATEX: \only<7>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/merkle_4_revisions.pdf}}}
     #+LATEX: \only<8>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/releases.pdf}}}
     #+LATEX: \only<9>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/merkle_5_releases.pdf}}}
     #+LATEX: \only<10>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/snapshots.pdf}}}
     #+LATEX: \forcebeamerend
 ** Zoom on the trust model for identifiers
    \vspace{-5pt}
 *** Trust model for usual DOIs :B_block:
     :PROPERTIES:
     :BEAMER_COL: .5
     :BEAMER_env: block
     :END:
 #+ATTR_LATEX: :width \linewidth
 file:doi-vs-pid-1.pdf
 #+BEAMER: \pause
 *** Trust model for DOIs with checksums :B_block:
     :PROPERTIES:
     :BEAMER_COL: .5
     :BEAMER_env: block
     :END:
 #+ATTR_LATEX: :width \linewidth
 file:doi-vs-pid-2.pdf
 *** :B_ignoreheading:
     :PROPERTIES:
     :BEAMER_env: ignoreheading
     :END:
 #+BEAMER: \pause
 *** Trust model for SWH-IDs
     :PROPERTIES:
     :END:
 #+ATTR_LATEX: :width .3\linewidth
 file:doi-vs-pid-3.pdf
 * Describe and cite /research/ source code
 ** Context
 *** Many articles/guidelines                                        :B_block:
     :PROPERTIES:
     :BEAMER_env: block
     :BEAMER_COL: .4
     :END:
      - reproducibility
      - archival
      - credit and evaluation
 #+BEAMER: \pause
 *** Most common limitations :B_block:
     :PROPERTIES:
     :BEAMER_env: block
     :BEAMER_COL: .6
     :END:
      - software is 'just data'
      - citation = reference = DOIs
      - citation produced by automated tools
 #+BEAMER: \pause
 *** :B_ignoreheading:
     :PROPERTIES:
     :BEAMER_env: ignoreheading
     :END:
 *** A few remarkable exceptions
      - [[https://www.ascl.net][ASCL]] (since 1999): metadata only, carefully curated
      - [[https://www.geodynamics.org][geodynamics.org]] : source, documentation, metadata
      - [[https://swmath.org][swmath.org]] : software catalog via articles
 #+BEAMER: \pause
 *** Software Citation WG at Inria (since 10/2018)
     - leverage a 50 year experience, make recommendations
     - read more https://hal.archives-ouvertes.fr/hal-02135891
 ** Why it is not simple
 *** Software is complex
  - Structure :: monolithic/composite; self-contained/external dependencies
  - Lifetime :: one-shot/long term
  - Community :: one man/one team/distributed community
  - Authorship :: complex set of roles /(more later)/
  - Authority :: institutions/organizations/communities/single person
 #+BEAMER: \pause
 *** Various granularities
  - Exact status of the source code :: for reproducibility, e.g.
 #+latex:            \emph{``you can find at \href{https://archive.softwareheritage.org/swh:1:cnt:cdf19c4487c43c76f3612557d4dc61f9131790a4;lines=146-187/}{swh:1:cnt:cdf19c4487c43c76f3612557d4dc61f9131790a4;lines=146-187} the core algorithm used in this article''}
 
  - (Major) release :: \emph{``This functionality is available in OCaml version 4''}
 
  - Project :: \emph{``Inria has created OCaml and Scikit-Learn''}.
 ** Proposals for the scholarly world
 *** Refined ontology for contributors                               :B_block:
     :PROPERTIES:
     :BEAMER_COL: .55
     :BEAMER_env: block
     :END:
     - Design, Architecture, 
     - Coding, Testing, Debugging,
     - Documentation, Maintenance, Support,
     - Management
     \hfill see also [[https://www.casrai.org/credit.html][CRediT]], [[https://geodynamics.org/cig/metadata/?software=aspect&version=2.1.0][Geodynamics]]
 #+BEAMER: \pause
 *** Reference is distinct from citation :B_block:
     :PROPERTIES:
     :BEAMER_COL: .5
     :BEAMER_env: block
     :END:
     - *Reference* is for /reproducibility/
     - *Citation* is for /credit/
     \hfill They must not be conflated
     - Beware :: of the numbers game:
     \hfill ... do we really want an /s-index/ ?
 *** :B_ignoreheading:
     :PROPERTIES:
     :BEAMER_env: ignoreheading
     :END:
 #+BEAMER: \pause
 *** Keep the human in the loop :B_block:
     :PROPERTIES:
     :BEAMER_env: block
     :END:
     When /credit/ is at stake, automation/crowdsourcing is not enough!\\
     \hfill Humans /are needed/ to get /quality information/
 ** First steps with HAL / Software Heritage
 *** How it works, what is special                                :B_picblock:
     :PROPERTIES:
     :BEAMER_env: picblock
     :BEAMER_OPT: pic=deposit-communication.png,width=.4\linewidth,leftpic=true
     :END:
     \noindent *\hspace{1em}Generic mechanism:*
     - SWORD based
     - *review process*
     - versioning
 #    - /industry chimes in/ (details on demand)
 #+BEAMER: \pause
     *Today*: deposit .zip or .tar.gz file ([[http://bit.ly/swhdeposithalen][/guide/]])\\
     *Tomorrow*: just provide the /SWH id/
 #+BEAMER: \pause
 *** Deposit/describe research software in HAL
     - author: https://hal.archives-ouvertes.fr/hal-01872189
     - moderator: https://hal.archives-ouvertes.fr/hal-01876705
 *** Examples
     [[https://hal.archives-ouvertes.fr/hal-02130801][LinBox]], [[https://hal.archives-ouvertes.fr/hal-01897934][SLALOM]], [[https://hal.archives-ouvertes.fr/hal-02130729][Givaro]], [[https://hal.archives-ouvertes.fr/hal-02137040][NS2DDV]], [[https://hal.archives-ouvertes.fr/lirmm-02136558][SumGra]], [[https://hal.archives-ouvertes.fr/hal-02155786][Coq proof]], ... 
 ** The swmath.org approach
 *** Article based citation
    See for example:
    - [[https://swmath.org/software/7116][SemiPar on swmath.org]]
 * The road ahead
 ** We need to care more about research software
 \vspace{-5pt}
 *** Research software                                      :B_block:noexport:
     :PROPERTIES:
     :BEAMER_env: block
     :BEAMER_COL: .5
     :END:
     - pillar of open science
 #    - not just data
     - finally in the limelight
 *** Doing it right is not easy                             :B_block:noexport:
     :PROPERTIES:
     :BEAMER_env: block
     :BEAMER_COL: .5
     :END:
     - /simplistic/ approaches, "just data", ...
 #    - /directives/ are coming
     - soon part of /research evaluation/
 ***                                                :B_ignoreheading:noexport:
     :PROPERTIES:
     :BEAMER_env: ignoreheading
     :END:
 #+BEAMER: \pause
 *** You can help make a change
     - leverage Software Heritage in conferences, journals, AEC for /archival/ and /reference/ \\
 #+LATEX: \hfill {\href{https://www.softwareheritage.org/save-and-reference-research-software/}{https://www.softwareheritage.org/save-and-reference-research-software/} }
     - join the conversation on /software citation/ and /software evaluation/ criteria
     - tackle the scientific problems : big code, classification, infrastructure, etc.
 #+BEAMER: \pause
 ***                                                         :B_ignoreheading:
     :PROPERTIES:
     :BEAMER_env: ignoreheading
     :END:
 #+latex:    \hfill {\Large\bf Thank you!} \hfill\mbox{}
   #+BEGIN_EXPORT latex
   \begin{thebibliography}{Foo Bar, 1969}
   \footnotesize
   \bibitem{Abramatic2018} Jean-François Abramatic, Roberto Di Cosmo, Stefano Zacchiroli\newblock
   \emph{Building the Universal Archive of Source Code}, CACM, October 2018
   \href{https://doi.org/10.1145/3183558}{(10.1145/3183558)}
   \bibitem{DiCosmo2019} Roberto Di Cosmo, Morane Gruenpeter, Stefano Zacchiroli\newblock
   \emph{Referencing Source Code Artifacts: a Separate Concern in Software Citation},\newblock
   CiSE 2020 \href{https://dx.doi.org/10.1109/MCSE.2019.2963148}{(10.1109/MCSE.2019.2963148)}
   \href{https://hal.archives-ouvertes.fr/hal-02446202}{(hal-02446202)}
   \bibitem{alliez:hal-02135891} Pierre Alliez, Roberto Di Cosmo, Benjamin Guedj, Alain Girault, Mohand-Said Hacid, Arnaud Legrand and  Nicolas Rougier\newblock
   \emph{Attributing and referencing (research) software: Best practices and outlook from Inria}, \newblock
   CiSE 2020 \href{https://doi.ieeecomputersociety.org/10.1109/MCSE.2019.2949413}{(10.1109/MCSE.2019.2949413)}
   \href{https://hal.archives-ouvertes.fr/hal-02135891}{(hal-02135891)}
   \end{thebibliography}
   #+END_EXPORT
 * Appendix :B_appendix:
   :PROPERTIES:
   :BEAMER_env: appendix
   :END:
 ** 
    \vfill
    \centerline{\Huge Appendix}
    \vfill
 ** Software Heritage for Research and Innovation
 *** Reference platform for /Big Code/                            :B_picblock:
     :PROPERTIES:
     :BEAMER_opt: pic=universal, leftpic=true, width=.2\linewidth
     :BEAMER_env: picblock
     :BEAMER_act:
     :END:
    - unique *observatory* of all software development 
    - *big data, machine learning* paradise: classification, trends, coding patterns, code completion...
 #+BEAMER: \pause
 *** First datasets are available!
    - full graph of software development (~20Bn nodes, ~200Bn edges)
      see Pietri, Spinellis, Zacchiroli, MSR 2019 https://dx.doi.org/10.1109/MSR.2019.00030
    - MSR 2020 mining competition
      see https://2020.msrconf.org/track/msr-2020-mining-challenge#Call-for-Papers
 ** Raising awareness about Software Source Code
 *** :B_column:BMCOL:
     :PROPERTIES:
     :BEAMER_col: .53
     :BEAMER_env: column
     :END:
     #+ATTR_LATEX: :width .7\linewidth
     file:UNESCOParisCallMeeting.png
     UNESCO, Inria, Software Heritage invite\\
     [[https://en.unesco.org/news/experts-call-greater-recognition-software-source-code-heritage-sustainable-development][40 international experts meet in Paris]] ...
     #+BEAMER: \pause
 *** :B_column:BMCOL:
     :PROPERTIES:
     :BEAMER_col: .5
     :BEAMER_env: column
     :END:
     #+ATTR_LATEX: :width .65\linewidth
     file:paris_call_ssc_cover.jpg
     [[https://en.unesco.org/foss/paris-call-software-source-code][Their call is published on Feb 2019]] \pause
 *** :B_ignoreheading:
     :PROPERTIES:
     :BEAMER_env: ignoreheading
     :END:
 *** 
     :PROPERTIES:
     :BEAMER_COL: 1.06
     :BEAMER_env: block
     :END:
     It's an important /policy tool/, already referenced and used ...
     \hfill /yes, you can sign it!/\\
     \vspace{10pt}
    \hfill https://en.unesco.org/foss/paris-call-software-source-code \hfill\mbox{}
 
+* Guidelines detailed and SWH-ID use cases
+** Prepare your software source code \hfill \href{https://www.softwareheritage.org/save-and-reference-research-software/}{complete guidelines}
+# scientific software (save code now) use-case (one slide)- preapre
+#+INCLUDE: "../../common/modules/swh-scientific-preservation.org::#prepare" :only-contents t :minlevel 3
+
+** Submit save request on SWH \hfill \href{https://www.softwareheritage.org/save-and-reference-research-software/}{complete guidelines}
+# scientific software (save code now) use-case (one slide)
+#+INCLUDE: "../../common/modules/swh-scientific-preservation.org::#save" :only-contents t :minlevel 3
+
+** Reference software artifacts in your articles \hfill \href{https://www.softwareheritage.org/save-and-reference-research-software/}{complete guidelines}
+# scientific software (save code now) use-case (one slide)
+#+INCLUDE: "../../common/modules/swh-scientific-preservation.org::#reference" :only-contents t :minlevel 3
+** Reference software artifacts in your articles \hfill \href{https://www.softwareheritage.org/save-and-reference-research-software/}{complete guidelines}
+#+INCLUDE: "../../common/modules/swh-scientific-preservation.org::#referencecontd" :only-contents t :minlevel 3
+
 * News
 ** Milestones                                                      :noexport:
    #+INCLUDE: "../../common/modules/swh-key-dates.org::#keydates" :minlevel 3 :only-contents t
 ** News : archiving /public/ code
    #+latex: \begin{center}
    #+ATTR_LATEX: :width 0.7\linewidth
    file:codeetalab.png
    #+latex: \end{center}
 #+BEAMER: \pause
    https://code.etalab.gouv.fr
 ** News : SWHAP
 *** Paris Call on Software Source Code
     “[We call to] support efforts to gather and preserve the artifacts and
     narratives of the history of computing, while the earlier creators are still
     alive”
 #+BEAMER: \pause
 *** SWHAP : an important step forward
      - detailed guidelines to *curate* landmark legacy source code
        and *archive* it on Software Heritage
      - intense cooperation with *Università di Pisa* and *UNESCO*
      - open to all, we'll promote it worldwide
 *** 
     https://www.softwareheritage.org/swhap
 ** News : ENEA mirror
 *** Thomas Jefferson, February 18, 1791 :B_block:
     :PROPERTIES:
     :BEAMER_ACT:
     :BEAMER_env: block
     :END:      
 #+latex:  {\em
   ...let us save what remains: not by vaults and locks which fence them
   from the public eye and use in consigning them to the waste of time,
   but by such a multiplication of copies, as shall place them beyond
   the reach of accident.
 #+latex: }
    #+BEAMER: \pause
 *** Welcoming ENEA                                                  :B_block:
     :PROPERTIES:
     :BEAMER_env: picblock
     :BEAMER_OPT: pic=LogoENEAcompletoENG.png, leftpic=true, width=.7\linewidth
     :END:
      - first *institutional* mirror
      - increased resilience
      - *AI infrastructure* for researchers
      - stepping stone to \endgraf
        \hfill an European joint effort
 
 * Inria's committment
 ** Inria's ongoing contributions
 *** Software Heritage
     - universal archive :: (research) software source code [[https://archive.softwareheritage.org/][archived and referenced]]
 *** Reproducibility
     - tools :: [[https://www.gnu.org/software/guix/][Guix]] (now [[https://www.softwareheritage.org/2019/04/18/software-heritage-and-gnu-guix-join-forces-to-enable-long-term-reproducibility/][with Software Heritage]])
     - training/research :: RR workshops, MOOC
 *** Research software curation
     - HAL - SWH bridge :: curation of metadata, and [[https://hal.inria.fr/hal-01872189][deposit in Software Heritage]]
 * Identifiers are not easy
 ** URL decay disrupts the /web of reference/
  #+INCLUDE: "../../common/modules/urls-decay.org::#rfc" :minlevel 3 :only-contents t
  #+INCLUDE: "../../common/modules/urls-decay.org::#examples" :minlevel 2
 ** DOI limitations
  #+INCLUDE: "../../common/modules/doi-analysis.org::#doiexplained" :minlevel 3 :only-contents t
-* Looking for the right identifiers
+* Looking for the right identifiers                                :noexport:
 #+INCLUDE: "../../common/modules/swh-pids.org::#main" :only-contents t