This would make sense to me (despite how distasteful it is to kickstart a closed-data project). Back in school, I remember what what essentially an encyclopedia set that was just X-Ray diffraction peaks for various (all?!) materials and substances. There was also peak detection software, but the libraries were not as easy to trace and look up, so we resorted to the books often (at least for a second opinion).

That they may treat the sensor fingerprints as a Trade Secret of some sort makes sense, considering the current cost and value of such data.