DURUON

If there were a challenge that rewarded you for getting a good night's sleep, would you be able to head to bed a little earlier? 😄

Go Health Me, featured at ETHGlobal Tokyo, is an experimental project that allows you to set sleep or exercise goals and verify them using wearable device data.

Participants stake test USDC to join a challenge, and the funds from those who fail to reach their goals are distributed to those who succeed. If everyone fails or there's no wearable data to verify, the staked amounts are returned.

Your sleep duration isn't posted directly to the blockchain. According to the team, only the verification of whether the goal was met is recorded on-chain, rather than the raw health data.

It's still a project using test USDC on the Base Sepolia testnet. Rather than viewing it as a health app to make real money, it's better to see it as an experiment in connecting wearable data with on-chain settlement.

Team profile: https://ethglobal.com/showcase/go-health-me-3xrns

With Devcon 8 starting today, ETHIndia will also be held tomorrow. While the name usually brings hackathons to mind, this year it's taking place as a one-day conference for Ethereum builders in India.

The event will be held on November 4th at the Jio World Convention Centre in Mumbai, within the Devcon venue. You'll need a Devcon ticket to enter.

The official page lists speakers including Saumya Saxena from Base and Ashish Singhal, co-founder of CoinSwitch. It will be interesting to hear what the Ethereum builders and users in India have to discuss.

Detailed schedules and info on broadcasts or recordings will be released later. If you're following along from Korea, I recommend checking the event page again.

ETHIndia official announcement: https://ethindia.co/

Devcon 8 starts tomorrow, and you don't need to go to Mumbai to follow the presentations. Following up on my last post introducing the event, here are a few things to keep in mind if you're watching from Korea.

First, take a look at the official schedule to pick the sessions and times you're interested in. This year's event takes place in Mumbai, India, from November 3rd to 6th.

Korea is 3 hours and 30 minutes ahead of India. If the schedule is displayed in local time, a 9:30 AM presentation will be at 1:00 PM in Korea. You'll want to check which time zone the schedule is showing first.

According to the official Devcon FAQ, sessions will be streamed, and recordings will be uploaded to YouTube and the Devcon app. However, it's hard to assume every program will be handled the same way, so it's a good idea to check the details for your chosen sessions before the event.

Even if you can't make it to Mumbai, picking out at least one presentation to watch would be great! 😄

Official Schedule: https://app.devcon.org/schedule

Tap Pay: An Experiment Turning Two Phones into a Payment Terminal

What if, when making a payment at a store, the customer paid in ETH and the merchant received USDC? Tap Pay is an experiment that connects this process using two Android phones. It is a project submitted to ETHGlobal Tokyo.

The merchant first enters the amount of USDC to receive, which creates a payment request. The customer can then tap their phone or scan a QR code to verify the store name and amount. It is said to work by verifying the signature of the payment request and ensuring the store name is linked to the merchant's wallet.

If the customer selects USDC, they pay as is; if they select ETH, the necessary amount is exchanged into USDC to complete the payment. The merchant receives the USDC amount they initially entered.

The act of tapping a phone is familiar, but behind the scenes, it bridges different assets. However, for now, this is just a demo settling on the Base Sepolia testnet. It hasn't been introduced as a payment service ready for use in actual stores yet.

The Ethereum community is heading to Mumbai next month. Devcon 8 is taking place from November 3–6 at the Jio World Centre in India. While it sounds like a developer-focused event, the topics being discussed are much broader than that.

Devcon is an event where Ethereum developers, researchers, and various community members gather to discuss technology and future directions. This year, they will cover everything from technical upgrades to security, privacy, AI agents, and community building. It might sound a bit intimidating at first, but if you look at it through the lens of questions like, "What more should a wallet tell you before you sign?" or "How do I protect my data on a public blockchain?", it becomes quite relatable.

The event spans four days and includes presentations, panel discussions, and workshops across multiple stages, alongside community-led spaces. It’s less of a formal conference and more of a space for people to bring what they’re building and the challenges they’re facing to share with others. Please note that the detailed schedule is still being finalized and is subject to change.

It’s not easy to just hop over to Mumbai, haha, but I’m curious to see not just what new technologies will be revealed, but how they plan to solve the things users have found inconvenient. It’ll be interesting to see how closely these tech topics translate to our daily lives, from wallets to personal privacy.