Money is any item or verifiable record that is generally accepted as payment for goods and services and repayment of debts in a particular country or socio-economic context,[1][2][3] or is easily converted to such a form. The main functions of money are distinguished as: a medium of exchange; a unit of account; a store of value; and, sometimes, a standard of deferred payment.[4][5] Any item or verifiable record that fulfills these functions can be considered money. -Wikipedia. So yeah, it is a verifiable record that is accepted as payment, so bitcoin is money