...To read it, we never unrolled it physically. Instead, we scanned it with high-resolution X-rays, reconstructed the wound sheet inside the volume, flattened it into a readable surface, and used machine learning to bring out the faint traces of ancient ink...PHerc. 1667 is what survives of a larger roll: earlier attempts to open it by hand -- in the nineteenth century, and again in 1969 and the 1980s -- destroyed its outer layers and left only the compact inner core, about 8 cm of an original height of 19–24 cm. From that surviving portion we have now recovered and read...