There was no specific description in the God-Sealing Hero List about whether the Nuwa Stone was eventually known by the experts. The Nuwa Stone was a very mysterious item in myths and legends. It was said that it could give the holder extraordinary power. However, it was not clear whether it was known by some experts. The List of Heroes is a very famous novel that involves a lot of myths and legends. If you have any questions about the plot, you are advised to read the original work to obtain a more detailed understanding.