It does not seem to be on the v8 tape. I found the following on the web:

but that seems to be from much later and for the 5620.

Then there is this, which seems to be the Blit's graphics routines or a derivtive thereof:

(although it seems larger than the 8KB mentioned in the paper).

I’m aware of this emulator:

which uses a rom dump; it appears a good base for h/w documentation.

Did the sources of these rom contents survive?