There is stronger evidence that paper is nonsense than there is that it's a valid piece of academia. As per painted_frog's superb sleuthing, even the electron m

There is stronger evidence that paper is nonsense than there is that it's a valid piece of academia. As per painted_frog's superb sleuthing, even the electron microscope image in there was just a rotated and cropped image from another electron microscope website in 1999. Here's the source image here: https://web.archive.org/web/19991103120709/http://www.engr.sjsu.edu/WofMatE/Mat'sChar2.htm https://web.archive.org/web/19991103120709/http://www.engr.s... Notice the artifacts of the rotation in the plagiarized copy. https://twitter.com/retired__frog/status/1157762921293914113 https://twitter.com/retired__frog/status/1157762921293914113 "14/26 As Gutmann himself points out in an appended epilogue after OHDD was published, there are major problems with OHDD, one being that bc the authors don’t know the difference between Scanning Electron Microscopy (SEM) and Magnetic Force Microscopy (MFM), they confuse the two "15/26 Note the copy/paste (no citation) from A Practical Guide to Scanning Probe Microscopy (1993). Given the authors’ unfamiliarity with these tools and methods, it doesn’t lend huge credibility to the paper’s conclusions that there is no documentation of the experiment itself. "16/26 Indeed, the paper falsely claims a MFM-captured image as deriving from this project. In fact it’s a crop of an image originating from Veeco Instruments Inc, in an MFM image gallery on its site since 1999 at latest. The accompanying citation is an unrelated paper about MFM. "18/26 The concluding section makes the unsupported (false) claim that this study demonstrates that a single-pass overwrite renders data irretrievable even with the use of MFM “or other known methods”. The study didn’t purport to test any other methods, only MFM. "25/26 No corroborating artifact from the study was ever made available; there is only the critically flawed paper. Questions about method (ex. locating disk sectors) received dubious or dismissive answers.