Can the old hukou, which has been stamped with an invalid stamp, prove the previous relationship between parents and children?

If a page of the household registration book has been stamped with the "invalid" seal, the information displayed on this page can no longer be recognized or used, but it does not affect the effectiveness of other pages of the household registration book. Therefore, the information displayed on other pages of the household registration book, including the relationship between parents and children, is still valid.

If you need to prove the relationship between parents and children, you can try the following methods:

1. Provide other supporting materials: You can provide other supporting materials, such as birth certificate, education, medical records, etc., to prove your kinship with your parents.

2. Consult relevant institutions: If it is necessary to prove that kinship is used for certain purposes (such as applying for a visa and inheriting property, etc.). ), you can consult relevant government agencies or professional lawyers to understand the required certification materials and procedures.

3. Keep relevant evidence as much as possible: If you have any documents or evidence that can prove kinship, such as letters, photos, testimonies, etc. Keep such evidence as much as possible for future use.

It should be noted that different countries and regions may have different legal provisions, so the specific certification requirements and procedures may be different. If you need more specific advice or help, please consult local legal experts or government agencies.