Ethereum as a Protocol for Human Coordination: Social Implementation in Japan

EDCON 2025 · 18 Sept 2025 · 25:01

Mash Haruki, Mitsumasa Kiyohara and Hiroyuki Tachibana discuss practical forms of Ethereum-based coordination in Japan. The EDCON 2025 panel looks at Myna Wallet’s connection between Japan’s public identity system and Ethereum, and Touban’s approach to organizing contributions within DAOs.

Speakers

Topics

From EDCON 2025, hosted by EDCON.

Transcript

discussion. Next, we'll move on to the panel discussion. The panelists are Mr. Hiroyuki Kachibana and Mr. Mash Haluki and the moderator is Mr. Mitsumasa Kiohara. The theme of the discussion is the front front lines of social implementation in Japan.

[Music] Um good morning everyone. I'm Mitsu. I'm with the company called Detro Galage. Uh we are payment gateway company BC uh crypto exchange in Japan that's uh you know tries to adopt crypto uh in Japan uh for now almost 10 years. uh but today I'll be talking about um Ethereum's uh fundamental value. Uh you know before our session uh Eliza talk about how Ethereum is supporting public goods through u coordination funding

mechanism. uh but today is kind of very uh similar topic. Um but I would like to explain h how um this visions of Ethereum protocol for human coordination is achieved in Japanese uh real life uh with the panelists today. uh but before that I'd like to set the tone of understanding uh what is uh coordination in Ethereum and why is it important uh for uh Japan's environment today.

Ethereums has unique aspects of coordination that it both achieves you know hyper global coordinations you know uh instead of following nation states rule constitutions or following corporates rules corporates algorithm we basically follow the code code is low so this allows us to en enable you know hyper at the very global scale of coordinations like defi you know regardless of where you are from Um even you don't know the person you work with, you are uh coordinated uh to uh you know manage billion of dollars on blockchains. Uh you're coordinated to uh

fund public goods. Uh but that's at the very global scale. Uh but also at the same time uh coordination is achieved at the very local level. The example of a po it basically you know gives you uh proof that you contributed to something the actions or another example of a local coination is like a local dao it's for example it's a dao that tries to you know uh uh revitalization of Japanese local area and this coordination is very important.

I uh the reason why I think the coordinate uh coordination is important uh in Japan is as many of you know uh Japanese is facing a huge issues uh one is uh population decline and also the decrease of birth rate. So by by the year 2000 uh 2070 uh the number of Japanese populations is projected to fall from uh 123.4 million to 77.6 six uh million person in 2017 and also uh the number of foreigners living in Japan uh the percentage uh

towards Japanese population will rise from uh 2.2% to 10% in 2017. So Japan used to be a country where like it's a single culture. Uh major population is Japanese but uh uh eventually we will be a country with a very uh diversity. Uh so we need a better uh coordination mechanism and I believe uh one of the solution for uh bringing new coordin uh making better coordination in Japan maybe uh using Ethereum blockchain.

And another example for why we need better coordination is in the uh back in 2020, Japanese government gave out about 28.3 trillion yen as a COVID subsidy. This is about like a 30% of a national annual budget and 2.3% was spent on administrative costs. uh we can do better uh in terms of uh you know uh uh allocating the taxes uh and also we can cut the administrative uh cost maybe uh through uh Ethereum and lastly uh uh this uh session was inspired by one of the book I led

recently it's a Japanese book it's called the next generation government how to build a small yet big government Japan is known to be like a big government. Uh so big government means government is controlling everything in terms of public services. They give out they use a lot of budget. uh and the small government means the the government let private sector uh does the service and people think it's a very contradicting either we choose big government or small government but maybe there's a middle uh way where we can both achieve uh small yet big government through uh better uh coordination

mechanism and today whether intended or not. Uh we have a a guest uh panelists uh who are implementing uh their ideas uh to uh make uh you know better coordination in Japan through implementing you know Ethereum's visions of PE uh protocol for human coordinations. So I'd like to introduce the panelists. So please come up on the stage uh Ho from Minlet. of a minor wallet and we are building the wallet that works with the government issued ID minor card. Next slide please.

So currently almost 100 million people already own this government issued ID card. We utilize this card as a identity verification but the unique thing is that in this chip there is a chip which contains uh two key pairs so that we can make signatures with card. So we uh we um bring um all Japanese legency into Ethereum by utilizing this card and account of selection. Thank you. >> Thank you. So please be seated. Uh and next panelist is Mash from Toban.

>> Uh uh uh hi uh hello everyone. Uh thank you uh for coming uh this pan session. Uh my name is Haruki. Uh I'm web three uh developer. I have joined uh many hackathons and build buildons and uh I uh developed some uh project. Tobin is one of them and uh well it's uh Toban uh started at uh Isa Tokyo last year and uh our contributors uh stay uh keep uh building uh today uh with uh other contributors. Uh okay. Uh Tobant idea uh came from uh community

management. Uh every co community needs to member contributions. Uh the annual way is task based uh evolutions but uh reporting uh every task is to too much uh work. Uh so uh Malaysia uh also find it uh has to set the right task weight. Uh so it does not work well in the long term. uh state fair and rivers are important. Uh frontier split uh loan cannot uh continue uh forever and uh every community has necessary uh roles.

Uh so uh Tobin solves uh these problems with uh role based system. uh one uh flights and duties are grouped into the rows and managed on chain and second uh big contributors and uh small contributors uh can get rewards. A third uh reward uh ratio are simple uh based on load type and uh duration. Fourth uh whether 10 uh 100 or thousand members uh rewards can be shared easily.

Uh now uh we are updating toban and promoting uh we went uh more community and project to use it. Uh by the way uh toban team uh you also use Toban. Thank you. >> Thank you. So now we're moving to the panel uh discussions. Okay. So we have introduced two panelists uh Hilo and Mush. So I guess um so Hilo is working uh contributing to the you know Ethereum's vision of uh protocol for

human condition through like identity layer uh as its entry point and the mash is uh maybe contributing through like as a action layer you know um but uh I want to ask this one first question is uh you know h how does your project uh like actually uh contribute uh to you know making Ethereum as a protocol for human coordination in like a real life. Uh so maybe we can start with uh hero.

>> Okay. Our contribution to make is real accessible to all citizens not only crypto native users by using minor card. So we enable every citizen in Japan including seniors and children with an with no prior crypto experience to have a um secure verified wallet just just by tapping their ID card. So this unlocks the new forms of coordination like distributing a child ling allow once or emergency relief in stable coins directly to their ID card verified wallets. So it's reducing the fraud and administrative costs and local community can also issue digital vouchers that are

fairly allocated while it's reimplify the global liquidity behind the scenes. So in short um we are extending ACM's coordination layer from LD adapter to the whole society. >> Thank you. I think um what's unique about minor is that because uh you know not only the it's for that elderly so basically 90% of how many >> it's like a 78% >> 788% of Japanese populations have my number card. Um so actually like this is not his project is not only for crypto bros but also for elderly and also uh the foreigners residents

>> right >> in Japan can also have a my number card. So basically I think his project is really um achieving like a inclusiveness. >> Yes. It's it's going to be the gateway to the you know uh people who are not uh >> the beginners >> beginners for beginners okay >> and maybe the programmable subsidy um so as I mentioned in the opening uh note you know Japanese government spent like almost about 30 trillion yen and 2.3% was spent on administrative cost but uh you know with the minor there's a possibility that the Japanese government can work uses to make it you know make

subsidy like a very programmable and that's I think that's very uh interesting >> right right >> future >> so um blockchain translations covers hopefully. And next uh Mash how you yeah contributing to

Ethereum. Okay. Uh yeah. Okay. Uh uh okay. Uh in the case of of uh diamond mare uh where toband was uh actually actually used. Uh we found that some challenges uh many things have been managed by institution. uh until now. Uh Diamond Maria is a local event uh held uh every fourth Sunday at uh Wingro SH Square in Diamond uh Shi.

Uh it has been learning to since uh 2020 uh and uh it shows the charm of local area. uh many staff members uh needs to work uh including during uh preparation and uh so uh we tried to toban to help improve uh management with toban uh roles and contributors uh can be uh contributions can be seen clearly and uh this could make uh communication smoothly and uh increase motivation.

Uh there are still uh challenges uh but the uh token features of Toba uh where people send token to share uh thanks uh helped to make contributions visible uh it also encourages uh active communication and uh better teamwork among uh members. >> Thank you. Okay, follow up question is so you said you um implemented toban into one of the dao shi dao um do you feel any changes before you like like does the community

change before and after implementing toban? Uh yes I I think uh a little bit uh improved uh city's uh local areas uh community you think people feel more motivated >> to commit to the local >> yes uh local uh coordination uh were uh uh follow up by toban actually So you said little bit of improvement.

Yes. So that means there's some uh difficulties. So that bring us to the next questions uh which is you know I think you know um saying Ethereum is a protocol for human coordination is is easy thing but it's hard to actually you know make that into reality. So um you know a lot of concepts and ideas but uh how like how are you going to actually like like what's a challenge for you your project to make you know make it adapt it into the Japanese community.

pretty sure if you have any challenge that you feel so far. >> So um currently we are working with um with local governments um they already handle subsidies warfare and community programs. So um by integrating our product minor wallet these programs can be executed more efficiently on ethe but uh and then current our focus is uh we are planning to piloting child raising vouchers local tourism token with several local uh government in Japan.

Each pilot uh will surely provides evidence on of impact and help build trust while granularly expanding the ecosystem of citizens and merchant. But the main challenges here are regulations, user experience and privacy. We must comply with Japan's you know strict financial um laws and make blockchain invisible so that the people feels um they are simply using kind of a trusted card on about the privacy linking the government issued ID with blockchain naturally lay some concerns.

Um but um I think we are optimistic like technologies like GKP, FH or T are becoming more procical right now. So you know like it enable to prove eligibility without revealing you know unnecessary information personal data on chain. So as these tools mature um we believe privacy will no longer be a fundamental barrier. >> Followup question. I have actually one follow-up question right so like when you talk to the local government or government about you know doing subsidy on blockchain like you mentioned about privacy is issue but like that is that issue coming from your side or from

their side like do they understand like what's their understanding of blockchain >> yeah so um actually um people from rocks doesn't understand collectively like what is a blockchain or what is private blockchain or what is public blockchain but uh um we explain uh the public blockchain like Ethereum is every every single transaction is uh open and public so like uh so for example I uh the local government gave a personal uh like 10 USDC so it's going to be public but uh our product is kind of linking to the you know um minor card and uh wallet So the uh public public general can see oh

uh this person got you know subsidies or something like that. So that's so we explained they and they understand and they concern. >> So we need more educations >> educations and also we need to you know uh kind of some privacy technology to not link you know wallet and ID. >> Got it. Thank you. So yeah to the She said a little bit of improvement. So what didn't work well? >> Oh okay. Uh right now uh each tobang contributors uh use uh their uh connections uh with other communic community to try to experiment uh like D Marush and uh and dig. Uh the current

challenge is that uh there are a little bit uh example outside of web 3. So uh uh I think uh we need to speak up uh and uh promoting uh and uh join not only web three event uh and conference uh but uh any chance we get uh this will help us uh make more connections. Thank you. And we have about five minutes left and I want to ask the last questions um and maybe very important questions. Um so why did you choose um Ethereum uh to you

make your project and why do you think like you can better achieve you know its coordination on Ethereum blockchain? Hi. Okay. Uh compared to other chain, uh I think uh Ethereum is uh different because uh people try to create a public goods. Uh using blockchain for business is normal. Uh many companies and projects do it. Uh this is true for all blockchain. uh but I feel uh Ethereum has the most activities to share goodwill uh with many people. Uh at least for me uh Ethereum is very noble

chain. Uh this idea fits very uh well with Tobin's vision actually. So I think this is important hearing from Mush because um I think he's a contributor to also other blockchain Solana and Sui but uh he chose to work on uh Toban on the Ethereum blockchain. >> So my answer is really simple because Ethereum uh nobody can stop Easter this is it. So um like um um I think is not just a settlement layer but I think it's it is a you know

coordination layer for humanity for human. So like um that's why yeah we I choose Ethereum. >> Yes. Okay. Um yeah, I think you know um Ethereum like you know the fact that you know the session before our sessions talks about public funding public goods and also we have this session of how to you know make better human coordinations is you know speaks a lot that the Ethereum is really uh focusing on not just making money or winning a game uh but uh you know h like how we and

continue to improve our uh coordinations. So um I think that's about it for today's sessions. Um so you know I hope I think important thing about Ethereum blockchain world is that you know don't give up. I think it takes time. It really takes time uh to implement your ideas uh into implementations but I think if we take time the society will follow up and maybe in five years or 10 years we will see Ethereum's eating the real world. So yeah that's that's it for today's session and thank you for joining.

>> Thank you. Thank you very much.