Hello gurglypipe
On reflection I am convinced that it would be inappropriate to make an attribution to DoBIH because my estimated locations on OSM do not reflect the accurate measurements and coordinates of DoBIH. It would be unfair to DoBIH to imply a level of accuracy on OSM compared to its own precise data. I am confident though that I have positioned summits within a few metres of the DoBIH coordinates (where the OSM peaks were previously tens of metres out of place). However by visually comparing OSM, aerial and OS maps I have not achieved a precise alignment to the DoBIH data. It has been a very useful guide but its data has not been exactly aligned to.
It would be great if you or other OSM contributors decide to import data from DoBIH to make the peaks across the UK more accurate on OSM, in which case an attribution would be appropriate and necessary.
Cheers