The Bible, The Koran, The U.S. Constitution, The Mona Lisa, The Great Pyramid at Giza, any play by Shakespeare, The Dead Sea Scrolls, Disney World, Gone With The Wind........... pick a metric.
I would not consider the Bible, the Koran, The Constitution, the Dead Sea Scrolls artifacts in the same way we might consider the Shroud an artifact. Certainly modern day things such as Disney, Literature, even the dome of the Cisten Chapel, are not ‘artifacts’ in the same sense. I don’t know that I would even call the Shroud an artifact, if you get right down to it. Of the six dictionary definitions of ‘artifact’, this one might come closest to applying to the Shroud...
“a handmade object, as a tool, or the remains of one, as a shard of pottery, characteristic of an earlier time or cultural stage, esp. such an object found at an archaeological excavation.”
I might give you the Bible... and possibly the Koran... but they are NOT single objects. The Mona Lisa is not studied at all with the depth that the Shroud has been. Nor would I put Shakespeare's plays in that category because we don't have any of the original manuscripts, so they are not single objects. The Dead Sea Scrolls? Nope. There is no question of their provenance... and they are limited as to who gets to even see the originals. The rest are just frivolous... except for the Great Pyramid... where you might have a point... but I would point out that there are three of them that are studied... ;^)>... not to pick nits.