In some cryptocurrencies, such as Bitcoin, unspent transaction outputs (UTXOs) are used as a unit of measurement. When we talk about the number of UTXOs someone has, what we’re really talking about is the value of their coins.

A dusting attack involves sending small amounts of Bitcoin to many addresses, with the purpose of gathering information about the recipients.

Taproot is the most recent Bitcoin update that includes major changes that will redefine multiple spending rules, signature algorithms, and scalability.

Bitcoin fees are small amounts paid to incentivize miners to include your transaction in the blockchain quickly and securely.

Why is it sometimes much cheaper, and sometimes more expensive to send Bitcoin payments? Who decides the fee, and where does it go? We’ll answer these questions and more in this deep dive into Bitcoin transaction fees.