I'm curious if there have been any tech advances in tracking valuable objects in like rare books, sketches, paintings, etc. that are currently actually used by institutions or considered a best practice.
Whether it's RFID chips, Bluetooth tags, security cameras that do "book recognition", or something else.
Heck, even something as simple as a barcode per object, shelf, cart and holding area, and you've got to scan them in and out every time it's picked up and put down (tied to your ID), and the whole system beeps with loud errors if it isn't scanned in somewhere within 30 seconds of being scanned out.
The idea that a multimillion dollar object could be "misplaced" or lost in a large collection feels appropriate to the year 1980, but by 2020 it feels positively anachronistic. (I realize this happened in 2000, so I'm wondering what prevents it today.)