The absolute worst the OSM licence would require would be to allow people to download and distribute your dataset under ODbL. You are not required to enter it i

The absolute worst the OSM licence would require would be to allow people to download and distribute your dataset under ODbL. You are not required to enter it into the OSM database. At an absolute worst, you can maintain, and fully control the data, in this (ODbL licenced) dataset, without any worry of anyone changing it.