 I'm Chef Anjou from NOSIS and we work on many things among those is a smart product based wallet called NOSIS NAME. If you haven't tried it out, I encourage you to try it out. Go to, yeah, okay, go to save.noses.io and it's available for Android and iOS. And we're using regular SIG phrases to allow recovery of those accounts but we want to go beyond that because we all know the flaws of SIG phrases. I guess all of us have created many of those. Usually there's like, you think, 39 and you really get a random list of 24 words, sometimes 12 words depending on how much entropy the world provider wants to generate and from this you generate a private key based together with an HD card and from this with public key and the address. And people have been quite creative about how they can make the SIG there, the SIG person. Yeah, cons about SIG phrases, they are supposed to be secure, like we know they are secure and they also allow us a base on the station tree to generate an arbitrary amount of private key from it so we just have to theoretically only store one of those. However, we still have to do this one backup and we have a loser than lose all access to all of those private keys. So this here is a nice tweet by Arjuns. We can really get rid of it and many have been trying to do so. They have been really creative ways and one of those teams actually tried to create a game. You are in a game, you select some rooms and you walk through those rooms and based on your actions in those games entropy is generated and you just have to remember what kind of actions you did in this game and then you can access to your account. Great idea. Yeah, you should try it out, quite fun. Another idea created with the losses was map covering so you can just select points of interest on the map and if you select a certain amount, like five of those then you are able to generate a private key based on those. And then one interesting idea was also to just use emojis. Say in Unicode there are over 2,000 emojis and you could just use this instead of the word list and it might be easier to remember emojis instead of just the list of words. So, sounds all great but there are of course big issues with it. First of all, if the user is doing this the user is playing the game or selecting emojis or selecting points of interest and it's quite likely that users will select similar points of interest so you kind of reduce the rate by just allowing the user to pick this. That's one big issue so you never know exactly if this is actually secure setup or not. And secondly, of course, you still have to remember this and if you don't remember those 24 emojis or if you don't remember the points of interest or which room you picked in this game then X is lost. So we have to go beyond this and fortunately it's probably one of the biggest advantages of using smart conflict based accounts like not to say this that we can now have this smart conflict as a proxy between you and your interactions on Ethereum and in smart contract we can define alternative rules like access rights. We use it for multi-sig but you can also use it to replace ownership of this multi-sig under certain conditions. There are a couple of ideas. One is you prove the loss of the private key by asking anyone to submit a deposit if the access was lost and only the owner of the multi-sig is able to claim this deposit and if in a certain period of time you are able to claim it this is seen as a proof that access has been lost because otherwise the owner would have taken this money and then the one who submitted the deposit is able to replace his key. It sounds like a great idea however they are of course very critical in like how much time do you actually let out a pass until someone is able to replace this if you know someone goes on holidays and he doesn't have internet then you can just raise his deposit and claim access to this account if you know the other person is not able to react in time. Also a problem of front-running if you do such a transactional idea anyone can see it and eventually front-run it and try to claim your account. The other quite popular ideas using social deep recovery is basically creating another multi-sig a threshold multi-sig where a number of your friends can confirm that you lost access and then they allow you to replace and gain access to your account again. The other question is how reliable are your friends? Do you really trust them? Also eventually they can be attacked right so if you actually just use another multi-sig for this then you would see like an on-chain multi-sig then you would see who are the guardians like who are the ones protecting your account and eventually they can be meant to real persons and then if someone sees there's a lot of money in this account they might be able to attack those try to make them collude and gain access to your account. One solution to this is eventually factual signatures has been a lot of work been done also by Chainlink and there are actually working through a concept for this the idea is that instead of having different Ethereum accounts being an on-chain multi-sig you just split the generation of Ethereum signature like in the American Ethereum among different parties they can generate this valid Ethereum front-action and then they don't have to store the Ethereum addresses on the blockchain. So they also constitute for any change in the setup you can tap into the ceremony again and of course if the members are losing access to this private key share and the threshold of people who are losing this then it's also access loss so some of you say there's not yet a perfect solution but some of these there are some options to pick from and you can combine some of them. Thank you very much.