Cal. Penal Code § 1217

When judgment of death is rendered, a commitment signed by the judge, and attested by the clerk under the seal of the court must be drawn and delivered to the sheriff. It must state the conviction and judgment, and must direct the sheriff to deliver the defendant, within 10 days from the time of judgment, to the warden of the State prison of this State designated by the State Board of Prison Directors for the execution of the death penalty, to be held pending the decision upon his appeal.