What is an Authentication Certificate?
An authentication certificate is a document authenticating the provenance and/or value of a work of… An authentication certificate is a document authenticating the provenance and/or value of a work of art. It is often issued for insurance purposes. An authentication certificate is usually issued by the original seller of a piece, normally a gallery or dealer. Many works do not have authentication certificates and the absence of a certificate is unlikely to have a material impact on the ‘saleability’ of a work.