This is from eBay seller thenovascotiakid. Janis Joplin apparently came back to life to sign this reel to reel copy of “Pearl.” This is from the auction description:

SOURCE:  This item came from the 4000+ piece collection of a second generation collector from the U.S.A with a lifetime of collecting and a stellar reputation who inherited a large collection of old and rare signatures spanning the early 1900s to present. He's earned a perfect record on ebay after selling 1000s of items.

I am an honest, serious collector and would never sell something I believe is not authentic. I do extensive reviews of anything I sell, and have a close friend who has authenticated for Disney and hard rock hotels if I need a second opinion... I only buy from dependable collectors who I research first and develop relationships with, or obtain myself...

https://www.ebay.com/itm/265944725975