Is this appropriate?

Our family went to a wedding six weeks ago. Our wedding gift check has not been cashed. Is it appropriate at this point for me to contact my cousin, the bride, and ask her if she received the gift?
For clarification, there was a QR code on their wedding website and they asked gifts to be directed there. Unfortunately, more than half the people at the wedding did not go to the wedding website and had no idea about the QR code and brought monetary gifts in cards/envelopes.