Its out there I have seen with my own eyes, I downloaded it from their web site. Search for news releases too.When there's profit to be made in finding more of something, people will do it very well. You're doubting that for silver specifically, but people always doubt it about everything. You may be right that silver will remain necessary and more scare, but we cannot possibly know.
I searched both iterations and got nothing but rumors of such a report. No one has been able to identify it, and many have expressed doubts that it exists at all.
As far as someone finding a LARGE deposit of silver? Satellites can see the large deposits because silver is only found near the surface.
The vast majority of silver mined comes as a byproduct of Zinc and lead mining. Pure silver plays are rare.
The day before gold and silver had a pullback, the largest silver mine in the USA had an accident and won't be doing any mining for at least another year or two.
Of course that won't affect supply would it? Its only 25% of the silver mined being take off the market.