It might interest you to know that Uruguay was the first to begin exploring central bank digital currency (CBDC). Even the most surprising of it is that the company that was commissioned by Uruguay to create CBDC was located in Switzerland. The company is responsible for printing most fiat currency in circulation. If you read the book called The Secret World of Banknote Printing by Klaus Bender, you have a full idea of how money works. This book was published in the year 2004 and it become a best seller in Germany.
Just in case you are wondering about the statistic about cocaine being in almost the entire physical money in existence that had been printed is true or not, there is a study by the Bristol institute way back in 1999 discovered that almost all British pounds in circulation had traces of cocaine. It is important to let you know that cash was the name of the currency issued during the Chinese Ming Dynasty in the 1300s and the first paper note was issued during the Chinese Tang Dynasty in the 7th century.
You should know that most of the fiat currency in circulation was not created by the central banks, it was created by many different companies which owned the machines and ink used to create fiat currencies. On the other hand, most of the central banks that do create their own physical currency still make use of the machines and inks of the companies. You should know that the shiny ribbons on fiat currency and the watermarks you see on higher values bills when you hold them up for proper inspection are all the inventions of these companies too.
Interestingly, every country in the world has bought these companies' inventions. How the company operates has been kept secret for centuries, this is because the masses would be up in arms if they knew how their fiat currencies were being created and things would probably change if citizens knew the details of the fiat banknote printing contracts. It appears that every single enterprise associated with banknote printing has gone through several problems and it is because of corruption and competition. The corruption led to incompetence while the competition led to leaks to the media of how the industry works.
The author of the first book about banknote printing find out that the sharing of insider information is a risky business when the money printers bought the entire copy in circulation. This made the difficult for people to find the book and any remaining copies were very expensive as a result. Klaus who was the author of The Secret World of Banknote Printing got to meet the CEO of the company responsible for making the money-printing machines that created almost all the fiat currency in circulation. This was after Klaus published that every 2% of the printed banknote went to the CEO but the CEO didn't receive the money in cash but rather in gold because CEO knew that his own printed money was worthless. The CEO I am talking about is no other than an Italian man Gualtiero Giori who headed the Giori company from when it was founded until his death.
Gualtiero Giori died in the year 1992 and is son Roberto Gioro took over the company. The Japanese continued to expand their money-printing presence until it reached the border Jewelry company. Komodo find a way to get contracts in Germany only to be rested out of its hands by a Jewelry company via a long process counter- offensive. Jury companies reign over the money print industry for many years but it was ended by technological ideas in the early 2000s when the central banks started to move away from the idea of physical money into digital. Right now, governments around the world are now rushing to launch their CBDC.