Our Authentication Process
Expert Inspection
Every bag is carefully examined by professional authenticators before being selected for our collection.
We evaluate construction, materials, stitching, hardware, date codes, serial numbers, craftsmanship and consistency with the original manufacturing period.
Authentication Certificate
BYEBYE VINTAGE collaborates with Cachet Véritable, a professional authentication specialist based in Paris.
Every bag is delivered with an authentication certificate issued by Cachet Véritable.
Additional Entrupy Certificate
For selected brands, an additional Entrupy AI authentication certificate is available upon request.
Entrupy combines microscopic imaging with artificial intelligence and one of the world's largest luxury authentication databases.