The info must be around somewhere, and I haven't found it... but I have yet to see the dimensions of the titanium strip, and any pictures of the Concorde tyre that came into contact with the strip.
The information I have gleaned, is that the investigators report that the strip profile matched a massive slash in the tyre, and was undoubtedly the item responsible for the blowout.
As always, there is never one exact, precisely-responsible cause, for a disaster. It's always an escalating chain of events, with an amazing line up of those events.
One has to question how Concorde survived numerous (figures range from 57 to 65) previous tyre burst events.. yet this particular one was so catastrophic. Surely Concorde blew tyres previously, fully loaded, on TO? ... yet survived to continue flying?
Was it that the titanium strip provided a far more EXPLOSIVE burst, than a regular tyre burst, caused by overheat, overload/other factors?
I have no doubt the tyre burst event was THE crucial factor in the crash. To my mind, runway checks for debris, must be an equivalent factor to Continental negligence, that must also occupy a high level of responsibilty for the crash.
If the titanium strip was found, prior to the Concorde departure, it's reasonably obvious that the Concorde would have flown. Thus, in my view, there has to be equal responsibility shared between Continental and CDG management for the disaster.
Titanium strip
Tyre remains
CONCORDE SST : Accident Report