the deed tax and maintenance fund for buying a house have been signed online. The house has been registered in advance, which means it has been put on record. It can't be said that the ownership of the house has been obtained before the property right certificate is issued, and it is necessary to apply for the real estate property right certificate as soon as possible. The deed tax and maintenance fund have been paid, which proves that it has been filed in the real estate registration center. The registration of real estate shall be subject to the registration of real estate and registration book.