just according to keikaku is a user on tootplanet.space. You can follow them or interact with them if you have an account anywhere in the fediverse.

Also, in looking at folktales, the sentiment is largely that it's very silly to find the One True Origin of these stories. The stories are often similar, but they're supposed to tell you more about the values of the people who told the stories than the ins and outs of the actual events of the tale. All variants are valid.