{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,18]],"date-time":"2025-10-18T10:05:37Z","timestamp":1760781937800,"version":"build-2065373602"},"reference-count":21,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2020,10,30]],"date-time":"2020-10-30T00:00:00Z","timestamp":1604016000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100012825","name":"International Visegrad Fund","doi-asserted-by":"publisher","award":["21920298"],"award-info":[{"award-number":["21920298"]}],"id":[{"id":"10.13039\/100012825","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>We present the purpose, long-term development vision, basic design, detection algorithm and preliminary results obtained with the Cosmic Ray Extremely Distributed Observatory (CREDO) Detector mobile application. The CREDO Detector app and related infrastructure are unique in terms of their scale, targeting many form-factors and open-access philosophy. This philosophy translates to the open-source code of the app, open-access in terms of both data inflow as well as data consumption and above all, the citizen science philosophy that means that the infrastructure is open to all who wish to participate in the project. The CREDO infrastructure and CREDO Detector app are designed for the large-scale study of various radiation forms that continuously reach the Earth from space, but with the sensitivity to local radioactivity as well. Such study has great significance both scientifically and educationally as cosmic radiation has an impact on diverse research areas from life on Earth to the functioning of modern electronic devices. The CREDO Detector app is now working worldwide across phones, tablets, laptops, PCs and cheap dedicated registration stations. These diverse measurements contribute to the broader search for large-scale cosmic ray correlations, as well as the CREDO-specific proposed extensive air showers and incoherent secondary cosmic rays.<\/jats:p>","DOI":"10.3390\/sym12111802","type":"journal-article","created":{"date-parts":[[2020,10,30]],"date-time":"2020-10-30T21:34:47Z","timestamp":1604093687000},"page":"1802","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Towards A Global Cosmic Ray Sensor Network: CREDO Detector as the First Open-Source Mobile Application Enabling Detection of Penetrating Radiation"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6117-4894","authenticated-orcid":false,"given":"\u0141ukasz","family":"Bibrzycki","sequence":"first","affiliation":[{"name":"Institute of Computer Science, Pedagogical University of Krakow, 30-084 Krak\u00f3w, Poland"}]},{"given":"Dariusz","family":"Burakowski","sequence":"additional","affiliation":[{"name":"Independent Researcher, 30-322 Krak\u00f3w, Poland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1956-9948","authenticated-orcid":false,"given":"Piotr","family":"Homola","sequence":"additional","affiliation":[{"name":"Institute of Nuclear Physics, Polish Academy of Sciences, 31-342 Krak\u00f3w, Poland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3699-9955","authenticated-orcid":false,"given":"Marcin","family":"Piekarczyk","sequence":"additional","affiliation":[{"name":"Institute of Computer Science, Pedagogical University of Krakow, 30-084 Krak\u00f3w, Poland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2830-9133","authenticated-orcid":false,"given":"Micha\u0142","family":"Nied\u017awiecki","sequence":"additional","affiliation":[{"name":"Department of Computer Science, Cracow University of Technology, 31-155 Krak\u00f3w, Poland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6834-2344","authenticated-orcid":false,"given":"Krzysztof","family":"Rzecki","sequence":"additional","affiliation":[{"name":"AGH University of Science and Technology, 30-059 Krak\u00f3w, Poland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5490-0835","authenticated-orcid":false,"given":"S\u0142awomir","family":"Stuglik","sequence":"additional","affiliation":[{"name":"Institute of Nuclear Physics, Polish Academy of Sciences, 31-342 Krak\u00f3w, Poland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5845-5487","authenticated-orcid":false,"given":"Arman","family":"Tursunov","sequence":"additional","affiliation":[{"name":"Research Centre for Theoretical Physics and Astrophysics, Institute of Physics, Silesian University in Opava, CZ-74601 Opava, Czech Republic"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7113-4709","authenticated-orcid":false,"given":"Bohdan","family":"Hnatyk","sequence":"additional","affiliation":[{"name":"Astronomical Observatory of Taras Shevchenko National University of Kyiv, 04053 Kyiv, Ukraine"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1874-8116","authenticated-orcid":false,"given":"David E. Alvarez","family":"Castillo","sequence":"additional","affiliation":[{"name":"Institute of Nuclear Physics, Polish Academy of Sciences, 31-342 Krak\u00f3w, Poland"},{"name":"Bogoliubov Laboratory for Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7291-6136","authenticated-orcid":false,"given":"Katarzyna","family":"Smelcerz","sequence":"additional","affiliation":[{"name":"Department of Computer Science, Cracow University of Technology, 31-155 Krak\u00f3w, Poland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9284-7000","authenticated-orcid":false,"given":"Jaros\u0142aw","family":"Stasielak","sequence":"additional","affiliation":[{"name":"Institute of Nuclear Physics, Polish Academy of Sciences, 31-342 Krak\u00f3w, Poland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9636-1809","authenticated-orcid":false,"given":"Alan R.","family":"Duffy","sequence":"additional","affiliation":[{"name":"Centre for Astrophysics and Supercomputing, Swinburne University of Technology, P.O. Box 218, Hawthorn, VIC 3122, Australia"}]},{"given":"Leonie","family":"Chevalier","sequence":"additional","affiliation":[{"name":"Centre for Astrophysics and Supercomputing, Swinburne University of Technology, P.O. Box 218, Hawthorn, VIC 3122, Australia"},{"name":"Astronomy Data and Compute Services, Swinburne University of Technology, P.O. Box 218, Hawthorn, VIC 3122, Australia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9847-5386","authenticated-orcid":false,"given":"Eman","family":"Ali","sequence":"additional","affiliation":[{"name":"Centre for Astrophysics and Supercomputing, Swinburne University of Technology, P.O. Box 218, Hawthorn, VIC 3122, Australia"},{"name":"Astronomy Data and Compute Services, Swinburne University of Technology, P.O. Box 218, Hawthorn, VIC 3122, Australia"}]},{"given":"Lewis","family":"Lakerink","sequence":"additional","affiliation":[{"name":"Centre for Astrophysics and Supercomputing, Swinburne University of Technology, P.O. Box 218, Hawthorn, VIC 3122, Australia"},{"name":"Astronomy Data and Compute Services, Swinburne University of Technology, P.O. Box 218, Hawthorn, VIC 3122, Australia"}]},{"given":"Gregory B.","family":"Poole","sequence":"additional","affiliation":[{"name":"Centre for Astrophysics and Supercomputing, Swinburne University of Technology, P.O. Box 218, Hawthorn, VIC 3122, Australia"},{"name":"Astronomy Data and Compute Services, Swinburne University of Technology, P.O. Box 218, Hawthorn, VIC 3122, Australia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2078-0580","authenticated-orcid":false,"given":"T.","family":"Wibig","sequence":"additional","affiliation":[{"name":"Department of Theoretical Physics, University of Lodz, 90-236 Lodz, Poland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5030-7516","authenticated-orcid":false,"given":"Jilberto","family":"Zamora-Saa","sequence":"additional","affiliation":[{"name":"Departamento de Ciencias Fisicas, Universidad Andres Bello, 8370251 Santiago, Chile"}]}],"member":"1968","published-online":{"date-parts":[[2020,10,30]]},"reference":[{"key":"ref_1","unstructured":"The Pierre Auger Collaboration (2015). The Pierre Auger Cosmic Ray Observatory. Nucl. Instr. Meth. 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