Preheat your oven to 450°.
In a medium, heat-safe combine the heavy cream and chocolate chips. Place the bowl over a small saucepan of simmer water. Stir occasionally until melted.
Remove from heat and allow to cool slightly.
In the bowl of a stand mixer fitted with a paddle attachment beat the cream cheese on medium speed until smooth. Add the sugar and sifted cocoa powder and beat until fully combined and smooth.
Add the chocolate mixture to the cream cheese mixture and beat until incorporated.
Add the eggs one at a time, combining fully and scraping down the sides and bottom of the bowl between each addition.
Add the vanilla and beat until just combined.
Pour the filling into the prepared pan.
Place the cheesecake into a deep pan. Boil enough water to fill the pan up to halfway up the cheesecake pan.
Pour the boiling water into the pan, stopping halfway up the springform pan.
Place the pan on the center rack of your oven.
Bake for 15 minutes, then reduce the temperature to 225° for 1 hour and 20 minutes to 1 hour and 35 minutes, or until only the center of the cheesecake jiggles slightly.
Remove the pan from the oven and allow it to rest on the counter for an hour or until room temperature. Transfer the cheesecake to the fridge to chill overnight.