This operation was aimed at replacing a heart valve and repairing damage to the aorta. The aorta is the main artery that brings the blood of the heart to the rest of the body.
The prolific actor died on February 25, 11 days after the operation.
The celebrity site TMZ unveiled the death certificate on Monday.
The document states that Paxton was cremated and his remains are buried at Forest Lawn-Hollywood Hills, a cemetery where many Hollywood stars are buried.
Paxton has been featured in several films such as ‘Twister,’ ‘Titanic’ and ‘Aliens,’ as well as in the HBO series ‘Big Love.’