But in this case, even with limited information, I think we can make a few deductions. Paraphrased from my reply over on CDF:
First there's huitong's statement that the original supersonic strategic bomber that lost to the flying wing was one with canards, and not too stealthy... I've always envisioned it as a sort of B-1/Tu-160 mix with XB-70, in terms of size and configuration, versus the flying wing which as B-2 sized. Logically this makes sense, as it would be a fair competition, in terms of range and payload.
The black model and the CGIs we've had of it since, have all seemed to me to be more of a Tu-22M sized aircraft, or an oversized F-111, far smaller than what I imagine above for the supersonic strategic bomber. For the consideration of various configurations for the next generation bomber project, I don't think the air force would have sensibly allowed such a difference in payload and range between a Tu-22M/F-111 sized aircraft and a B-2 sized one. This isn't just a question about semantics, but about the actual performance the supersonic vs subsonic flying wing bombers would have brought to the table.
Also, the black model in particular also seems to have been associated with the "JH-XX" tag rather than as "H-X"... which is almost fitting, given the black model did seem to show a side weapons bay for an A2A missile, which also helped us estimate the possible size of the aircraft.
The only ways in which the black model could be the supersonic bomber which lost, is if the current accepted consensus of what it was (canard, not too stealthy) is changed, and/or if the black model was actually much larger than we estimated, and/or if the original competition for the strategic bomber allowed bombers of very different weight classes to compete for and shape the air force's actual requirements for its bombers (rather than vice versa), and/or if the actual flying wing which won the bomber competition is actually substantially smaller than we thought and is actually similar to what we currently think the black model's size is thus suggesting the air force's definition of a "strategic" bomber is very loose.
I'm not sure if we have enough indications to consider any of the above, as of yet.