User:Egon Willighagen

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nl-N Deze gebruiker heeft het Nederlands als moedertaal.
en-5 This user has professional knowledge of English.
de-2 Dieser Benutzer beherrscht Deutsch auf fortgeschrittenem Niveau.
This user is a member of WikiProject Chemistry.
This user is a member of WikiProject COVID19.
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Open Scientist, very much involved in the Blue Obelisk (Q4420286) View profile on Scholia movement, Egon Willighagen (Q20895241) View profile on Scholia in the Wikidata database. Co-submitter of the Enabling Open Science: Wikidata for Research (Wiki4R) (Q26707522) View profile on Scholia.[1] [2] Also contributed to the Scholia project.[3] Participating in Wikidata since July 2013.[4] I practice open notebook science and my Wikidata notebooks can be found at

Seven years later, on September 19th 2020, I made my 1 millionth edit. Later milestones:

Chemistry has my main interest, metabolites particularly, but I am interested in science at large, including the process and the history.

Doing these days


Things I am doing or interested in in Wikidata right now include:





Accepted Properties


Shape expressions


Shape expressions are a nice way to formally document the structure of data. In Wikidata these are covered by EntitySchema. I started a few of them:

Curation lists




I have started developing a bot to working on metabolic pathways related information.

Based on a request, I have created a third account, again ending with "bot". These two accounts are defunct.

Finished/Retired/Paused tasks


Authority control

Authority control
  1. Mietchen, Daniel et al. (2015). Enabling Open Science: Wikidata for Research. Zenodo.
  2. Mietchen, Daniel et al. (2015). Enabling Open Science: Wikidata for Research. Research Ideas and Outcomes 1: e7573.
  3. Nielsen, Finn Å., Mietchen, Daniel Willighagen, Egon, 'Scholia and scientometrics with Wikidata', (2017).
  5. Slenter, D. N., Kutmon, M., Hanspers, K., Riutta, A., Windsor, J., Nunes, N., Mélius, J., Cirillo, E., Coort, S. L., Digles, D., Ehrhart, F., Giesbertz, P., Kalafati, M., Martens, M., Miller, R., Nishida, K., Rieswijk, L., Waagmeester, A., Eijssen, L. M. T., Evelo, C. T., Pico, A. R., Willighagen, E. L., Jan. 2018. WikiPathways: a multifaceted pathway database bridging metabolomics to other omics research. Nucleic Acids Research.