Ah, thanks, I wasn't aware of that.
That won't prevent me from bragging, as we released Opalang 1.0 in 2011 :)
I think Mark S Miller beat us both by like 10-20 years with CapTP. ;)
Not on multi-tier web applications, though :)
(but yeah, I was passingly familiar with E! when I designed the capability system of Opalang, so I definitely don't get full bragging rights)