To convince any skeptics, tell them to substitute the word "blockchain" for "bitcoin" in a lot of discussions about the latter. (It doesn't always work but often enough it does.) . . . Tomorrow, individuals and companies will hash whatever data they need to preserve, use that hash to create a bitcoin address, and then send some fraction of bitcoin to that address. Voila, unalterable proof that their data existed by an exact date and time . . .
In light of what I posted on October 13 (see quote, above), I got a reflected sense of validation in reading the quote below, published October 29, on a WSJ blog site (Google: Barry Silbert's DCG Slows Down Bitcoin Deals)
Make it a right-click function. Fast and easy does it.