🎉 WEEK 04: PIJIN IS LIVE, OFFLINE & OPEN SOURCE!
No Wi-Fi. No data. Just SMS. 📵➡️💸
This week we shipped our final deliverables: an offline-first mobile wallet that signs payments on the phone, sends them by SMS, and settles on Stellar Soroban.
✅ Final APK build
✅ 50 onboarding users on real devices with real SIM cards
✅ End-to-end flow: Wi-Fi/Data OFF → SMS → Relayer → Soroban
Thank you, Stellar community, for backing us through Instawards. 💙
🔗 PR: github.com/0xreru/Pijin/pull…
@riseinweb3 @StellarOrg @PHI_Stellar
⚙️ Here's what we delivered in the final stretch:
✅ Upgraded to Expo SDK 54 / React 19 for a stable offline key pipeline
✅ Strict 160-character SMS check, so payments never split into fragments
✅ Clear offline signing feedback in the app
✅ Least-privilege Android permissions and backups disabled to protect keys
✅ Privacy Policy & Delete Account pages
All build artifacts, the demo video, and proof assets: drive.google.com/drive/folde…
📢 Calling All QCU Entrepreneurs!
Pijin is looking for cafeteria entrepreneurs who are open to a short-term collaboration! 💙
Join our 3-day testing program and be part of a new way to accept payments without mobile internet data.
🔥 ONLY 2 SLOTS LEFT! Don't miss this opportunity to partner with us!
📩 Interested? Message us to learn more!
Let's grow together with Pijin! 🚀
#Pijin #QCUEntrepreneurs #LetsPartnerUp
🐦 WEEK 03: ONE PAYMENT. ONE SETTLEMENT.
What happens when a payment gets interrupted or sent twice? Pijin is building smarter ways to handle it!
This week, we improved transaction recovery, strengthened signature verification, and successfully demonstrated on-chain settlement on Stellar Testnet.
✅ 71/71 backend tests passed! Another milestone toward reliable SMS-powered payments.
🔗 PR: github.com/0xreru/Pijin/pull…
@riseinweb3 @StellarOrg @PHI_Stellar
🤖 Made with AI
WEEK 02: BACKEND HARDENED! 🔐
Pijin takes another step toward secure offline payments! This week, we strengthened our SMS-to-Soroban pipeline with enhanced security, smarter processing, and improved reliability.
🚀 55/55 backend tests passed! Building stronger payment rails on Stellar.
PR Link: github.com/0xreru/Pijin/pull…
@riseinweb3 @StellarOrg @PHI_Stellar
🤖 Made with AI
⚙️ Here's what we improved under the hood!
Documentation Link: drive.google.com/open?id=1Eq…
✅ HMAC-secured webhooks to authenticate SMS requests
✅ Payload limits & DoS protection
✅ QStash signature verification
✅ Strict voucher validation
✅ Smarter error handling & retries
✅ SMS failure notifications
✅ Improved Vercel deployment routing. 🔐
✅ Week 1 Accomplished!
The most critical foundation of an offline e-wallet is rock-solid security, and Pijin has it locked down. We successfully hardened our Soroban smart contract and fortified the protocol by deploying 11 comprehensive adversarial tests🛡️
@riseinweb3 @StellarOrg @PHI_Stellar
🤖 Made with AI
Pijin is IN. 🕊️
A proud milestone for us — PIJIN has been awarded for funding through the Stellar Ambassador Program. We’re looking forward to building more, learning more, and contributing to the ecosystem.
@PHI_Stellar @StellarOrg @riseinweb3
🤖 Made with AI
We built Pijin around a simple belief: digital payments should work wherever people need them—not just where the internet is strongest.
@PHI_Stellar
#Pijin #Stellar #StellarDevelopmentFoundation #APACHackathon #DigitalPayments #Fintech #FinancialInclusion #Web3 #Blockchain
🇵🇭 PHILIPPINES, WE MADE IT TO THE TOP 10!
We are incredibly grateful and proud to announce that **Pijin has been selected as one of the Top 10 projects representing the Philippines in the APAC Stellar Hackathon.**
#Pijin #Stellar #APACHackathon #Philippines #Web3
Out of more than 50 teams, we had the opportunity to showcase our vision of making digital payments more accessible—even in places where internet connectivity is limited.
This achievement is a reminder that every late night, every challenge, and every sacrifice was worth it.