Bitcoin was unleashed during the second half of 2008. Under the guidance of Satoshi Nakamoto, BTC was meant to operate as a “peer-to-peer version of electronic cash”. This enables one to transfer funds to another individual without the need of a bank [or a third party functioning as a moderator]. Today, it is positioned at the zenith of the crypto-market. The trading volume recorded is $18.256 billion, while 18,038,950 BTC coins have already been mined and are engaged as part of the circulating supply. The total market cap of Bitcoin is $160.091 billion. The price climbed by 0.20% in a matter of hours; this prompted BTC to surge and reach $8874.76.
When you’re online and are looking to make a purchase [it may be a simple item like toys, books, and so on, or illicit substances like drugs, explosives, etc] using fiat would incur massive amounts of fees. Bitcoin exists as a pseudonymous entity, which ensures that digital identities linked to a particular person differ from their real-world identities. However, anonymity is a major cause for concern.
Tainted coins are essentially BTCs that were used in suspicious transactions. This creates a problem for thousands who end up buying Bitcoin [even from reputed sources] which has had a bad history. Thus, this is equivalent to black money in the traditional financial world. How to solve this crisis? Simply forward your money to a service that will be in-charge of sending coins linked to another guy [or girl] back to you. Thus, traceability will become an issue for Big Brother [and other third-parties].
Ethereum mixers [or tumblers] are also available in the market.