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Bitcoin futures are contracts to buy or sell Bitcoin at a future date.

A Bitcoin ETF is an exchange-traded fund that tracks the price of Bitcoin.

Bitcoin is currently not quantum resistant.

To run a Bitcoin node, you need to install Bitcoin Core, ensure you have enough disk space and bandwidth, and keep your software updated.

The properties of a good hash function include being deterministic, providing uniform distribution, fast computation, minimal collisions, exhibiting the avalanche