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2. Certificate of authenticity - Wikipedia

   en.wikipedia.org/wiki/Certificate_of_authenticity

   A certificate of authenticity with a coin set. A certificate of authenticity (COA) is a seal or small sticker on a proprietary computer program, t-shirt, jersey, or any other memorabilia or art work, especially in the world of computers and sports. It is commonly a seal on paper authenticating a specific art work which and is made to ...

3. Fine art authentication - Wikipedia

   en.wikipedia.org/wiki/Fine_Art_authentication

   Fine art authentication is a process that ensures the integrity of artworks, preserves cultural heritage, and maintains trust in the art market.By combining traditional methods, scientific advancements, [1] [2] and emerging AI [3] and blockchain technologies, [4] art authentication can offer accurate attributions and protect the artistic legacy for future generations. [5]

4. Authenticity in art - Wikipedia

   en.wikipedia.org/wiki/Authenticity_in_art

   To guard against unwittingly buying a forged work of art, sellers and buyers use a certificate of authenticity as documentary proof that an artwork is the genuine creation of the artist identified as the author of the work — yet there is much business in counterfeit certificates of authenticity, which determines the monetary value of a work ...

5. Seals in the Sinosphere - Wikipedia

   en.wikipedia.org/wiki/Seals_in_the_Sinosphere

   A certificate of authenticity is required for any hanko used in a significant business transaction. Registration and certification of an inkan may be obtained in a local municipal office (e.g., city hall). There, a person receives a "certificate of seal impression" known as inkan tōroku shōmei-sho (印鑑登録証明書).

6. Comedian (artwork) - Wikipedia

   en.wikipedia.org/wiki/Comedian_(artwork)

   Comedian is a 2019 artwork by Italian artist Maurizio Cattelan.Created in an edition of three, it appears as a fresh banana affixed to a wall with duct tape.As a work of conceptual art, it consists of a certificate of authenticity with detailed diagrams and instructions for its proper display.

7. Provenance - Wikipedia

   en.wikipedia.org/wiki/Provenance

   The provenance of a work of art may vary greatly in length, depending on context or the amount that is known, from a single name to an entry in a scholarly catalogue some thousands of words long. An expert certification can mean the difference between an object having no value and being worth a fortune. Certifications themselves may be open to ...