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Is there any way you can find out who created a thing that you have read only permission on?
Usually you can find that out in the Change history section of an entity.
What if the thing is newly created? Then it does not seem to have any history.
The change history should show up right when a Thing is saved. However there was a bug in version 5.0 SP1 or SP2 where change history was not being displayed. That is fixed in 5.1