More Than Safe
SAFE CHAIN CASE STUDY
Blockchain solutions for a document saving and sharing platform.
Challenge
Thus, our challenge was to develop a platform with:
Blockchain solutions
Private/
permissioned network
Protection from external sources
Fast system operation
CEOs need to meet the requirements of the world high-tech processes to succeed. We think so, as well as our client from Spain, who hired us to develop a reliable web app for his company.

The point is that communication processes and documents confirmation often take a lot of time and resources. Some files can't be distributed through third parties, or services provided by other sides. The solution was SafeChain.
Features & Solutions
Users are able to:
receive notifications
chat
login via Google Authenticator
view, accept, decline, download documents and specifications
handle a large number of documents (in distributed storage)
use a web app on multiple devices—desktop, tablet, and mobile
Blockchain solutions:
1
Operations are encrypted and stored via Blockchain
2
Information is kept permanently unchanged
3
Each stage of documents processing and approval is logged
4
Chaincode runs in docker containers—is faster than EVM
5
No cryptocurrency and mining—no expensive transactions
6
Managed privacy of transactions and list of users
7
Protection from external sources and data encryption protocols
Development Solutions
Private Blockchain
Hyperledger Fabric, Go, BigchainDB
Frontend
React
Hosting & Deployment
Hosting—AWS ec2 instances, CI/CD—Jenkins
Backend
Python, Django, Node.js, PostgreSQL, RadisDB
Interface Design




Results
We developed SafeChain from scratch in two and a half months. Now it's a fully-functioning MVP which will be adapted to the finished product. Release in December, 2017.
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