Yes, close enough, though I do suspect Peter had it.
Richie Havens opened Woodstock Music & Art Fair (An Aquarian Exposition: 3 Days of Peace & Music according to the poster) even before Swami Satchidananda had given the opening address and blessing.
The closing act was billed (and introduced) as The Jimi Hendrix Experience. However, there had been some contractual issues and changes fo personnel, so Hendrix headed up the set by saying the band name was changed to Gypsy Sun and Rainbows. For short, he said, this was 'A Band of Gypsys', which is a name he and ex-army colleague Billy Cox had used before.
Hendrix was staying and recording near Woodstock at the time.