Bitcoin BTC (uppercase)

The most well-known cryptocurrency based on blockchain technology. Bitcoin was created in 2009 and its technology is outlined by the white paper titled “Bitcoin: A Peer-to-Peer Electronic Cash System.” Bitcoin with a capital “B” is associated with Bitcoin as a protocol and payment network and commonly used when referring to the Bitcoin ecosystem as a whole. For example, “I read an article about Bitcoin today.”

But there is also the small spelling. “bitcoin”

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