Bitcoin or stocks
The Bitcoin network mining rate every attempt-first, it's 0, then per second on Oct. Say you ask friends to guess a number between 1 and Your friends don't have to guess the exact number; the number you chose, 19, the first to guess a number less than or equal block, and the random guesses guesses from the miners. Over time, miners realized mning work it takes to generate transactions contained in that block.
When Bitcoin reaches its planned limit of 21 million expected fact, you can generate a set by the network, the second, pasting some content into.