The Art Loss Register, widely considered the authoritative body on looted and missing artworks, is currently involved in a trio of cases involving disputes on works’ provenance claimed by the register to be authentic which were actually contested.  “It’s incredibly frustrating because it doesn’t matter what you do,†says one anonymous figure affected by the cases. “You do everything you can to check a painting is clean, and it’s useless. How can you protect yourself? You can’t.â€
Read more at Art Newspaper