About the project  ·  MIT License

One person.
One engine, open to all.

RetractorDB.com is a website created by Michal Widera. RetractorDB itself is a data-processing engine created by Michal Widera and published as open-source software under the MIT License on GitHub. Both RetractorDB.com and RetractorDB are distributed under the MIT License.

Read the paper View on GitHub License
Michal Widera  ·  ORCID 0000-0002-3578-3792
Who’s behind it

A research project, not a company

This is not a company or a funded team — it’s one person’s research project, published so the ideas in it can be used, checked, and built upon. Documentation is written in Polish and translated automatically into English. English is the language the system uses to communicate with the user, and the arXiv papers are in English as well. Code comments appear in both languages.

Author

Michal Widera
michal@widera.com.pl
ORCID 0000-0002-3578-3792

Papers

Engine paper: arXiv:2607.07730
Foundations paper (2006): arXiv:2607.10444

Code and docs

Code: github.com/michalwidera/retractordb
Docs (EN): documentation.retractordb.com
Docs (PL): dokumentacja.retractordb.com

License

MIT License

LICENSE Copyright (c) 2020–2026 Michal Widera
MIT License Copyright (c) 2020–2026 Michal Widera Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.