Lethys, yeah, I was racking my brains a bit on how to identify it, but I noticed that there appear to be a range of identifiers for BHs. I settled on 'CTSB-4' thinking it would be the fourth one discovered by Aphelia and personally catalogued by her. If there's a system that covers all BHs, I'd be inclined to go with that.
Thanks for the responses, all.