Cryptocurrencies are digital assets designed to work as a medium of exchange that uses cryptography to secure transactions and control the creation of new units. The first cryptocurrency was Bitcoin, which was released in 2009 by an anonymous individual under the alias Satoshi Nakamoto. Bitcoin uses SHA-256, which is a set of cryptographic hash functions designed by the U.S National Security Agency (NSA). The security of cryptocurrencies is based on three principles: decentralization, transaction anonymity and irreversibility. — Cryptocurrencies are digital currencies that use cryptography to secure transactions and control the creation of new units. The first cryptocurrency was Bitcoin, which was created in 2009. There are over 1,000 cryptocurrencies available today and it is estimated that there will be more than 10,000 by 2020. Crypto currencies are not backed by a government or central bank and their value is determined by supply and demand. They can be obtained through mining or
Here are some interesting facts from various topics: 1. Honey never spoils: Archaeologists have found pots of honey in ancient Egyptian tombs that are over 3,000 years old and still perfectly edible. 2. The Eiffel Tower can grow taller during the summer: Due to the heat, the iron in the tower expands, causing it to grow about 6 inches taller. 3. The shortest war in history: The Anglo-Zanzibar War of 1896 lasted between 38 and 45 minutes, making it the shortest war ever recorded. 4. The world's oldest known recipe: A Sumerian beer recipe from around 4,000 years ago was discovered on a clay tablet in Mesopotamia. 5. The Great Wall of China is not visible from space: Despite the popular belief, the Great Wall is difficult to see from low Earth orbit without magnification. 6. The human brain is more active at night than during the day: Researchers have found that brain activity increases when you're asleep and dreaming. 7. The Earth has more than 80,00
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