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Collectors Universe Inc. is an American company formed in 1986, now based in Santa Ana, California, which provides third-party authentication and grading services to collectors, retail buyers and sellers of collectibles. Its authentication services focus on coins, trading cards, sports memorabilia, and autographs.
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US Treasury Department check signing machine. Operated by J.L. Summers in 1918. An autopen (or signing machine) is a device used for the automatic signing of a signature.. Prominent individuals may be asked to provide their signatures many times a day, such as celebrities receiving requests for autographs, or politicians signing documents and correspondence in their official capacit
PSA, the industry leader in the important task of grading cards, is slowly resuming its operations. Until then, a booming billion dollar sports card market must sit and wait.
Autograph collecting is the practice of collecting autographs of famous persons. Some of the most popular categories of autograph subjects are politicians, military soldiers, athletes, movie stars, artists, social and religious leaders, scientists, astronauts, and authors.
A digital signature is an authentication mechanism that enables the creator of the message to attach a code that acts as a signature. The Digital Signature Algorithm (DSA), developed by the National Institute of Standards and Technology , is one of many examples of a signing algorithm.
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The authors are members of the Section's Information Security Committee. The document was the first overview of principles and a framework for the use of digital signatures and authentication in electronic commerce from a legal viewpoint, including technologies such as certificate authorities and public key infrastructure (PKI).