
thumb|upright=1.2|A counterfeit Series 1974 United States one-hundred-dollar bill|one-hundred-dollar bill on display at the [[British Museum. After being detected, the bill was overprinted with a rubber stamp to indicate that it is a fake.]] A superdollar (also known as a superbill or supernote) is a very high quality counterfeit version of a United States one hundred-dollar bill, alleged by the U.S. government to have been made by unknown organizations or governments. In 2011, government sources stated that these counterfeit bills were in "worldwide circulation" from the late 1980s until at l
thumb|upright=1.2|A counterfeit Series 1974 United States one-hundred-dollar bill|one-hundred-dollar bill on display at the [[British Museum. After being detected, the bill was overprinted with a rubber stamp to indicate that it is a fake.]] A superdollar (also known as a superbill or supernote) is a very high quality counterfeit version of a United States one hundred-dollar bill, alleged by the U.S. government to have been made by unknown organizations or governments. In 2011, government sources stated that these counterfeit bills were in "worldwide circulation" from the late 1980s until at least July 2000 in an extradition court case.
While there are many features on supernotes that can be detected with conventional methods, new, more sophisticated supernotes could be produced to circumvent some conventional detection methods. Thus it may be possible to see some supernotes in circulation until they are detected.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).