It's authoritative but not original. See https://en.m.wikipedia.org/wiki/Masoretic_Text

It was primarily copied, edited, and distributed by a group of Jews known as the Masoretes between the 7th and 10th centuries of the Common Era (CE).

The differences attested to in the Dead Sea Scrolls indicate that multiple versions of the Hebrew scriptures already existed by the end of the Second Temple period.[1] Which is closest to a theoretical Urtext is disputed, as is whether such a singular text ever existed.

That text is the best we have, but is not original. Plus, it's disputed as to whether there was ever one "original", since the bible is a compilation of various texts which may not have had the exact same text all together in one book as an original.

The text you have linked is from hundreds of years after there would have been an original.