(credit: fdecomite )

The world's cryptocurrency is now worth more than $1 trillion, with bitcoin accounting for a large majority of the value. The price of the oldest virtual currency has risen to almost $40,000, pushing the value of all bitcoins in circulation up to more than $700 billion.

Ether, the cryptocurrency of the Ethereum network, is now worth more than $140 billion. Then there's a long list of less valuable cryptocurrencies, including Tether at $22 million, Litecoin at $11 million, and Bitcoin Cash at $8 billion.

Bitcoin creator Satoshi Nakamoto is believed to own around 1 million bitcoins. Most of these were mined in the first two years of Bitcoin's existence when there was little competition. If he still has copies of the private keys that control these coins, that would give him a net worth of nearly $40 billion—enough to make him among the 40 wealthiest people on the planet. Nakamoto has never publicly revealed his true identity and has not communicated publicly since 2014.