There is also an Ethereum-based ETF pending regulatory review, and many such products are likely to follow. For now, there are just a few options available. For example, ticker symbol GBTC is one such security listed on the US-based OTC Markets Exchange, and is available at major online brokerages such as Fidelity, providing stock market investors a way to gain exposure to Bitcoin without buying the underlying or using a derivative.
In 1983, the American cryptographer David Chaum conceived an anonymous cryptographic electronic money called ecash. Later, in 1995, he implemented it through Digicash, an early form of cryptographic electronic payments which required user software in order to withdraw notes from a bank and designate specific encrypted keys before it can be sent to a recipient. This allowed the digital currency to be untraceable by the issuing bank, the government, or any third party.