how can i proof?
Well, the "proof" is the blockchain, but I think a well formulated claim with some links to further information is sufficient.
As I said in my previous posts, you could use a wording similar to the current entry in your proposal:
"On 16 July 2011 Bitcoin, a voluntary peer-to-peer computing project to create the worlds first decentralized digital currency, achieved a computing power equivalent to over 14 petaFLOPS (14 quadrillion floating point operations per second). The project was initiated by a cryptographer named Satoshi Nakamoto in 2009. Since then, a growing number of Bitcoin users around the world combine the processing power of their computer's graphic cards to create and secure those new digital tokens of value. Counterfeiting Bitcoins would require an adversary to have a much higher computing power than the whole Bitcoin network combined, which makes them practically forgery-proof."
For further reference, include links to
the hashrate graphs, the
bitcoin.org project page, possibly the
weusecoins-video, the
introductory page from the wiki and the link to the
original paper from Satoshi. I don't think they will need much more of the technical details.
