Do you actually own the stocks bought through eToro?

Hello gentlemen, The topic that is bugging me since I have started investing through the eToro trading platform is the following: Do we really own the stocks that we buy through eToro? I know now that we buy the Underlying Asset when we open a Un Leveraged position, but what does this mean? Do we really buy the stock itself, or just bet on the rise of its price? If, let's say eToro, would close, how could you get hold of your assets? You do not receive any ownership certificates, not even digital? I am asking this because I want to invest for the long term, 5 - 10 years, and hold stocks for dividends. But I am questioning the security of these investments.