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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] Seven years later, on September 19th 2020, I made my 1 millionth edit and in November 2021 the 2 millionth edit was made. April 8th 2023 I made the 3 millionth edit around the topic of per- and polyfluoroalkyl substances (Q648037) View profile on Scholia and thanks to a big effort to add missing mass (P2067) annotations for chemical compounds, I made my 4 millionth edit in August 2023.

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

Doing these days Edit

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

Events Edit

Proposals Edit

Accepted Properties Edit

Shape expressions Edit

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 Edit

Bots Edit

User:UreomiczBot Edit

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

User:Ureomics and User:UreomicsBot Edit

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

Finished/Retired/Paused tasks Edit

Authority control Edit

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.