Showcase: C-safe Citizens Safe with C-chain (Blockchain)



The Business Process:

In our C-safe showcase we show an implementation of C-chain as a C-safe app for the secure use and exchange of documents using f.e. within the BAföG application procedure: Uli is a student and would like to apply for BaföG. For this he needs a certificate of enrollment issued by his university.

The image shows the process of providing documents in order to do a BAfÖG application with the help of the C-chain app Citizens Safe, which in C-chain are depicted as transactions in one transaction chain. The actors have previously registered with their cryptID in the C-Chain UDB and established a relationship (transaction chain) to their corresponding transaction partner via the C-chain TDB.
C-chain actors and smart Contracts:

The process involves: Uli as a student, his Citizen Safe, his university, the BAföG office, smart Contracts

The entire process of Citizens Safe with all the necessary smart contracts for validating and executing the respective orders as transactions is depicted in C-chain. The smart Contracts executed by the university, the student and the BAföG office are certified by a higher authority and known to the actors involved in the transaction.

Bookings within the C-chain Transaction Chain:

All individual transactions are booked via C-chain in a Blockchain (TC-Chain) correctly, immutably, in the correct order and always checkable (CICC) and are immediately synchronized in the respective local transaction chain of the actors involved. The actors can therefore track the bookings that are relevant to them at any time and replicate as often as they like on any devices or storage media (Cloud or On-Premise).

The Process Steps:

The university issues the enrollment certificate and places it in the Citizens Safe of Uli.

C-chain books the information about the issuance of the enrollment certificate of the university with all necessary data (name, matriculation number, semester, date, time etc.) in the transaction chain [Uli-Safe] as the first block and immediately synchronizes the local transaction chain of the actors involved.

Uli requests a voucher for the BAföG office via C-chain to inspect the enrollment certificate in the Citizens Safe.

C-chain books the information about Uli's request to issue a voucher slip in the transaction chain [Uli-Safe] as a second block and immediately synchronizes the local transaction chain of the actors involved.

As a result of the execution of a smart Contract a voucher will be handed over to Uli he can then pass to the BAföG office. 

C-chain books the information about the delivery of the voucher to Uli in the transaction chain [Uli-Safe] as a third block and immediately synchronizes the local transaction chain of the actors involved.

Uli passes the voucher to see his enrollment certificate on to the BAföG office.

C-chain books the information on the forwarding of the voucher for the enrollment certificate from Uli to the BAföG office with all necessary data (name, matriculation number, semester, date, time etc.) in the transaction chain [Uli-Safe] as fourth block and immediately synchronizes the local transaction chain of the actors involved.

The BAföG office will redeem the voucher and inspect the enrollment certificate of Uli.

C-chain books the information about the application of the voucher for the enrollment certificate by the BAföG office in the transaction chain [Uli-Safe] as the fifth block and immediately synchronizes the local transaction chain of the actors involved.

If the University of Uli has exmatriculated him in the meantime, the voucher previously forwarded by Uli to the BAföG office is no longer valid.

C-chain books the information about the application of the voucher for the inspection of Ulis enrollment certificate by the BAföG office and the rejection of the BAföG application in the transaction chain [Uli-Safe] as the fifth block and immediately synchronizes the local transaction chain of the actors involved.

Since the voucher for the inspection of Ulis enrollment certificate is now outdated, the BaföG office rejects Uli's  application for the granting of BAföG.

Possible business scenarios based on C-chain are:

Do you have a specific scenario in planning? Then please contact us. We are happy to provide you with our know-how in the area of business modeling based on C-chain.