Abstract: An authentication system, method and article for memorabilia and other forms of articles wherein a first image-bearing medium is affixed to the article with a tamper-proof adhesive. A unique code number is imprinted on the medium. A certificate of authenticity is provided for the article and includes a second image-bearing medium with an identical unique code number. A list of unique code numbers is maintained to enable a purchaser of the article to register that article such that the purchaser or a subsequent purchaser can verify the authenticity of the authenticated article.

Abstract: An authentication system, method and article for memorabilia and other forms of articles wherein a hologram is affixed to the article with a tamper-proof adhesive. The hologram has thereon a unique code number. A certificate of authenticity is provided with the article and it includes a like or different hologram, but with a matching unique code number. A master record or list of the unique code number and related article to which the code number applies is maintained by an entity which also provides a registration "hotline." A purchaser of the article can register that article, and at any time in the future when the article is sold or otherwise transferred its authenticity can be verified through the registration hotline.