Brian Waldie 439,000 DK (Arcade) 8/23/15
http://www.twitch.tv/bach730/v/12495473
http://www.twitch.tv/bach730/v/12495676
For those that didn't see this game, Brian's stream cut out at 401,700. He restarted the stream after his final death at 439,000. The question was whether he could submit this score or not. The first highlight contains game footage and attract mode prior to the submitted score. It also shows the beginning of the submitted score up through 401,700. The second highlight shows the final score, attract mode, and a restart showing lives and bonus setting.
The first stream of this submission began at approximately 11:38:34 AM 9 (my time), ran for approximately 1:00:55 (cross-checked with the un-highlighted previous broadcast), then cut out. The second stream began at approximately 12:25:58 PM, roughly 6:29 after the first stream cut out. Considering the pace at which Brian was playing, 6 1/2 minutes is enough time to score another 37,300 points, die, then restart the stream.
In my opinion there is enough evidence to support adding the 439,000 score to the HSL instead of the 401,700, so that is what I've done.
Attached are the stats I was able to gather from the available footage. Brian, if you know the final board and any of the missing score values, please let me know and I will update this chart. Congrats on the new PB sir!