Tokyo Hackathon’s Bitcoin Cash Prize Winner is ‘Dead Man’s Switch’ App

Tokyo Hackathon's ‘Dead Man's Switch' App Wins Bitcoin Cash Grand Prize

Prizes in Bitcoin Cash (BCH) have been awarded to the 3 best teams that were able to deliver a working mobile app prototype in just two days. At the event thirty four engineers, enthusiasts and students were working. The event took place at the Hash Hub co-working space at the Tokyo University.

The hackathon has been organized and sponsored by Crypto Age, Yenom and

The winning team was ‘Clock Wallet’ facilitating the inheritance of cryptocurrencies allowing users to set time-locked transactions that become effective in case the user does not log-in into the wallet after a certain amount of time.

The event took place two entire days from August 18 to 19, 2018. Some participants came from other parts of Japan, showing the big interest that there is in the country for events as this one.

Ajifumi Fujita from Yenom, explained:

“It was great because the goal for us organizing this hackathon was to give a chance to as many people in Japan to gather and develop apps for Bitcoin, and I’m happy to say we did it, many people said the event allowed them to learn new stuff on Bitcoin apps, and that they are even more excited to keep working on new ideas.”

Most of the individuals present at the event were Japanese IT students in their 20s, and some professional developers in their mid-30s or 40s. Moreover, there were 32 Japanese participants and two foreigners.

At the even there were four judges, Gerald Fabrot and Paul Bergamo (both of them representing the seat of, Jo Miyamoto from Campfire and Shigeyuki Azuchi, co-author of an important Japanese book about Blockchain programming.

According to them, there were three main criteria at the time of evaluating the projects. They should provide a meaningful use of bitcoin, it had to use technology and whether or not the judges would use the app in a personal way.

The winners were Takahiro Hirata, Kawa, Shiho Takeuchi and Shoichi Yamazaki.

“With traditional banks when someone dies, it’s extremely complicated for the remaining family to easily access the dead person’s assets,” explained Shiho Takeuchi, one of the two female participants in the whole hackathon.

The users should log in every single month in order to confirm that they are alive and working. Instead, if you are inactive for a long period of time that you preselect beforehand, a transaction will be triggered. If the person dies, it can then send the funds to another person, or someone he trusted.

The first place received 1 BCH from for their work, the second team won 0.5 BCH, and the third team 0.25 BCH. The team in the second place created a voting system that allows users to write who they support in the Blockchain. The third team made Atomic swaps between the lightning network and BCH.

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