I too know all this, namely that morally speaking I am the son of Pandu owing to the rulings laid down in the holy books, as you say and think, O Krishna.
सर्वं चैवाभिजानामि पाण्डोः पुत्रोऽस्मि धर्मतः। निग्रहाद् धर्मशास्त्राणां यथा त्वं कृष्ण मन्यसे॥