Property Registration Decree (PD 1529)
Section 61. Registration. Upon presentation for registration of the deed of mortgage or lease together with the owner's duplicate, the Register of Deeds shall enter upon the original of the certificate of title and also upon the owner's duplicate certificate a memorandum thereof, the date and time of filing and the file number assigned to the deed, and shall sign the said memorandum. He shall also note on the deed the date and time of filing and a reference to the volume and page of the registration book in which it is registered.