Below is an example of a documentation sheet. A documentation sheet should be available for every print printed by a reputable printer or artist. It should contain all the technical and production details regarding the print and is your proof of authenticity. You should take care when you are offered certificates of authenticity by artists and dealers as these are often not worth more than they paper that they are printed on. Unless it details specific information about the print (date, size, paper used, printing method used, breakdown of edition details etc etc) the certificate of authenticity is nothing more than a marketing trick. Similar to chocolate bars and ice creams that are labelled "limited edition"!