 for all things and we for being here it's last day at that car and it's fishing in a couple of hours I guess you're all very tired, so we all appreciate you coming So my my my talk is about licenses. So it's going to be just a very quick overview really a snapshot of the open sources blockchain projects and which licenses they've chosen to work with in our space So I'll just tell you a little story of how I built the data for this other projects I think it really speaks of the open source community and together towards the main economy So first of all, I started just building like my own list of open source blockchain projects out there you know manual and then I thought I could crowdsource that that initiative and I tweeted it out and I posted on Reddit for people to help me out It was great because the lists are growing, but then I was then it was pointed to the Santorat API Which is actually great because thanks to them. I got a database of basically more than a thousand at that time more than a thousand blockchain projects and So that made it much much much easier for me because plus the fact that the github API has a license endpoint made so that I could just basically take each one of these projects and see what the licenses each one of them have, right? So sounds simple So in the end I basically built a list of more than 1,500 projects and more than 10,000 rebos so each project has multiple rebos aside of it and So it's interesting because it actually gives us some data to analyze and gives us some So this is kind of what the data looks like Although this graph itself is very useful because the size of the triangle here represents the amount of rebos So it's not a very very useful data but it's pretty much And just as a side note so we have a theorem here in orange red right and It's I think it's second place in terms of the amount of rebos first place goes to a Bitcoin like me Project called both to play So this is what we got more interesting data. So most of our Repos in the blockchain space don't have a license attribute So 51% of them don't have a license and I'll get back to the non-license the products like For that if we take those out, we can see that most of those projects Most projects that do have a license choose MIT license So 55% of them use MIT license followed by a patchy with 15% and then DPR for you with All that followed by a diverse mix of DPL tight licenses and then others Interesting licenses on the last on license and do whatever you want with the license Now I Don't know how scientific this is probably isn't at all, but I did find Reverse relationship between the number of words in license and the popular So actually does make much sense because if we want to really read the license and even if understand what's in it personally, I would choose a hundred to be to work places than almost 6,000 I would almost bet that maybe what one two three five percent of people who actually use the DPL three laces have read those five thousand six hundred and eight words So, you know, anyways, I think that's an interesting This is a chart of the 2015 get hub long study And the fact that we compare to today's blockchains, at least We see some tendencies MIT being used more gaining some space So DPL v2 losing some in my opinion probably losing some to DPR v3 You know, some people incorrectly. So think the DPR v3 isn't is an evolution of Case and I'm going to go into those details. You want to speak about that to the top? And I'm actually getting some space so Lastly just to go back to that none license the project So we have fifty one percent if we compare that to the same study on get hub Study We see a clear tendency to not license our products for time Which is basically not big shame because we don't license a project. It has a default like copyrighted And also We're basically at least ahead in terms of that overall 2015 stat and today The lower at fifty one percent and it's a big number. We should finally try to reduce that at least for the So that's all I got if you want to talk more about the types of licenses and why choose one or another You know, it's only five years. I don't have the time to that But if you want we can talk about later that later although it do work. I'll be talking about Pegasus hyperledger and why we chose that That's all