

Research phase:


Prototyping and testing phase:


Deployment phase
✅ Analyze existing solutions mobile payment systems without internet.
✅ Compare the advantages and limitations of current alternatives
✅ Study SMS integration via services like Twilio
✅ Study data encryption techniques to secure SMS messages via Ethereum blockchain
✅ Investigate the option of lightweight nodes to reduce the computational load on mobile devices
Various research collaborations and project work ( In progress )
✅ A first version allowing a user to register by SMS.
✅ Generation and secure storage of private keys.
✅ Implementation of a transaction signing module and an API allowing SMS requests to be sent.
Send and receive messages via an SMS gateway and measure latency when sending an operation on the blockchain
Develop a network of community nodes accessible via SMS
Development of a Flask/Django server to manage users and transactions.
Simulate a connection with a blockchain (via a testnet like Ropsten or Bitcoin Testnet).
Storing transactions waiting to be synchronized on the blockchain as soon as a network is available.
Verify that private keys are never transmitted via SMS and remain secure.
Test the digital signature to avoid transaction falsifications.
Carry out a user test to see if the interface and the system are understandable.
Identify technical or UX (user experience) issues.
Adjust compression and signature algorithms to optimize SMS size.
Make security fixes before moving on to a broader experimentation phase.
Integration of a caching system to avoid unnecessary requests to the blockchain.
Integration of a double authentication system to strengthen security.
Observe usage behavior and collect feedback.
Integration of blockchain satellites like those of Blockstream.
These satellites broadcast Ethereum blocks in real time, allowing transactions to be sent via local satellite stations.
Establishment of local support centers for user onboarding and training.
Expansion.

1️⃣ Phase 1 – Research and Analysis 🧐
We will start by studying user needs, technical constraints and existing solutions. An in-depth analysis of blockchains and communication protocols (SMS) will be carried out.
2️⃣ Phase 2 – Prototyping and Testing ⚙️
A working prototype will be developed with a simple and intuitive user interface. We will test offline transaction management, generation of secure wallets and integration with Ethereum and Layer 2.
3️⃣ Phase 3 – Development and Deployment 🚀
The application will be developed with a scalable infrastructure, including smart contracts on Ethereum and an SMS relay server. An intensive testing phase will ensure security before the official launch.
4️⃣ Phase 4 – Expansion and Adoption 🌍
After launch, we will integrate more blockchains, expand compatibility with multiple operators and establish strategic partnerships to accelerate adoption.
The roadmap in a few lines:




SMSChain
Come and discover us on the networks
© 2025. SMSChain - All rights reserved.