OCR-B outline font (OCRB.otf)
Origin: CTAN package "ocr-b-outline" (https://ctan.org/pkg/ocr-b-outline)
Outline conversion: Zdenek Wagner, http://icebearsoft.euweb.cz (2010-2011)
Original METAFONT sources: Norbert Schwarz, Ruhr-Universitaet Bochum
License terms, as stated by the authors in the package README:
"The license of the outline fonts is the same as for the original fonts,
i.e. you may freely use, modify, and/or distribute any of these files,
without limitation."