[question] how to create personal tokens, is RSK/rootstock good?

Bitcoin is the best money, but what when you want some modern shares secured with cryptography and blockchain - using power of the strongest Blockchain - Bitcoin?

Is Rootstock(RSK) a good idea for this? How secure is it?

I suppose, for simple centralized tokens/shares, one could just released monthly statements from his database of who has what, signed, and notarized into Bitcoin...

a) just timestamped with Bitcoin, for example open time stamps

b) or broadcast to the world using bitcoin-graffiti with op return, to prove there are no other statements hidden besides the ones I publish now to certain shareholders.

Isn't Rootstock kind of doing (b) but collective among many operations in its chain, for any number of tokens?