Well, these are the distinct records from your original array of hashes. You did not specify which value is to be unique. I would think that you should now be able from the answers here and the answers from your post yesterday: Accessing this array ref. to conclude whatever you wanted to achieve.
It isn't clear what you want for output. You want to remove entries in the original data where type is duplicated, it seems, but how do you want to handle the case where reference or name is different? Which entry in the arrayref do you want to choose?