That list seems right, but wasn't a new IP made in '85, and wasn't that the element used for the JSC transfer? So that means that the '82 release would have used a different IP, right?

My guesses about the presence of the '81 crawl on the "original" IP:

1.) When the 1981 reissue rolled around, the ANH crawl could have been spliced onto the IP so it could be used to produce a new internegative for foreign reissue prints without the English subtitles.

2.) The IP they used for the DC actually had the '77 crawl but it was simply replaced for the video transfer.

3.) It wasn't an original 1977 IP, but a later dupe of said IP with the '81 crawl on it. (Which would account for both the presence of the flaws from the '77 IP, and the additional grain/wear/damage.)

I'm not sure. All I know is that the negative could not have had the "errors" because the IP(s) used for the 80s video transfers did not have them. If it were on the O-neg, every single film element made from it would also have them.

What exactly do you mean, the scene was altered for the SE?

And I thought that none's comparison shows that both the NTSC and PAL THX transfers used the same element, but in the NTSC the errors were DVNR'ed out.

I'm as confused by all this as you are - I don't pretend to have the answers, I'm just guessing.