Certificado

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  Telegram interface example for offline events

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  Certificate for OpenHack2020

Inspiration

The global issue I was trying to solve is a bad reputation of educational certificates. For many HRs certificate is "just a piece of paper" because they cannot truly trust in it: many job seekers just draw their certificates trying to cheat about their background. That's why fair employees aren't benefited by hirers enough when attaching their certificates.

What it does

Certificado is a tool for schools and universities to add value to their certificates. Each document is verified and stored on-chain and can be verified by any Internet user on the validator page. Moreover, each certificate is represented as a PDF-file with unique QR-code that can be used to verify it's validity in one click.

How I built it

Certificado is built on a Tezos network. All certificates datas are stored on-chain and can be verified in a HTML+JavaScript form. The Telegram bot interface is used to provide simple and fast UX for certificates issue by students.

Challenges I ran into

1/ Sending transactions in the Tezos network. While it's easy to access read-only API, it was pretty challenging to set "pytezos" library for sending data into it. 2/ Creating data bridge for both interfaces - Telegram and Web application

Accomplishments that I'm proud of

The most challenging issue for me was to find a balance between simple UX accessible to every Internet user and data security. So, I'm proud of designing an elegant Telegram solution with a blockchain logic inside. I believe that only products with the same UX logic can gain mast adoption Web3.0 industry deserves.

What I learned

Blockchain integration to a cross-platform product.

What's next for Certificado

Previously, Certificado was used by 5 different online schools and online events (for example, https://www.openhack2020australia.com). Since now a truly decentralised logic is completed on a Tezos network, so I'm going to offer this solution for Higher Schools. We already have MOU confirmed with HISTES.de - this is going to be the first integration with European universities.

I believe, that Certificado may become a new standard for Education.

Built With

• api
• blockchain
• chainlink
• javascript
• python
• telegram
• tezos