Hi folks,

I'm currently writing my Master thesis about Crypto and Ponzi Schemes - namely, why cryptocurrencies are predestined for the use in such schemes.
One of my case studies is the wonderful OneCoin story. Now, I'd really like to include some facts-based angle to this, besides all the bogus, and am looking for historical data of the coin "value" or market cap...
However, I simply cannot find anything - other than their own figures they published, which I naturally don't trust.

Does any of you crypto experts in here have some useful tips? I'm quite new to the topic, so I might just not have checked the right sources...

Thanks in advance, all!