To what end? A digital stock cert is easier, and doesn't require a timestamp. Anonymous ownership of stock is risky for the investors, and illegal in most nations anyway. Anonymous "bearer bonds" are also banned in most nations, due to a history of their use in money laundering and finanacing of wars.
A decentralized equity market would hve no brokerage fees. This is good enough a reason do make it real, to me.
I don't care if it's illegal or if it can be used for money laundering or whatever. Laws are decided by people. I'm part of 'people' so I give my opinion and I say I wish anonymous ownership of shares was legal.