ShredDB is an experimental .shred library, I removed the audio so it's pretty useless. You can find the source .psarc files here.

Song	Artist	Play	Shred	Length	Album	Year	Tuning	Uploader	Updated	Delete
THE HERO !! -Ikareru Kobushi ni Hi wo Tsukero-	JAM Project			3:52	One Punch Man OP Single	2015	Drop D	mute	1970-01-01
The hero!!	JAM project			3:48	One punch man	2015	Drop D	mute	1970-01-01