I haven't used either so have no idea of their reliability.
‘So if bitcoin is considered money, where can I buy or sell a futures contract for bitcoin’
Good question. The answer?
Sort of.
Bitcoin isn’t like other fiat currencies. With bitcoin, anyone using bitcoin can download the books to see how much bitcoin actually exists. Bitcoin is ‘mined’ using computer algorithms that incentivize many different computer nodes exist in order to ensure these books remain open, and that the total amount of currency available remains stable as more people exchange it.
If you look at the bitcoin to dollar exchange rate, it doesn’t reflect the buying power of bitcoin at all.
If an apple, say, cost .0005 bitcoin today, then 10 years from now, that same apple will cost .0005 bitcoin.
However, buy an apple today at $1.25 an apple, and in 10 years it will likely be in the neighborhood of $4.00.
This is because the Fed is printing $80B a month. The Oregon state budget was $30B last year, if I recall correctly.