Some more info can be found here.
But what really matter is of course
Jazzwise in the mean time posted the following message on their website :
"Tuesday, 17 December 2013 18:28
Jazzwise apologises for passing on widespread reports on jazz websites, social media and jazz radio and initial checks ourselves made earlier today, that Horace Silver had died. Jazzwise apologises unreservedly to Horace Silver, his family, freinds and fans and for any distess this may have caused. Peace. Mike Flynn"
All the better!!