I'm new to bitcoin and just learned that most (or maybe all) of the exchanges are working off-block, meaning that they don't really push data to blockchain most of the time.
Is there any altcoins or exchanges that store data in blockchains ? I'm doing researched project on the matter and trying to find exchange that have some of it's trading public.
As I understood from this outdated article, Kraken might been on-block exchange in the past.
BitSquare might be something I'm looking for, but I'm not sure exactly how does it work.