Concordium File Sealing Service

Projects

Central Signing Service

Simple Node JS Service. Which uses Concordium Node SDK to push a RegisterData transaction on the Blockchain Node. Takes File Hash as input.

Deploy

Deploys the Concordium Web to Mobile App Bridge using docker. We internally use this to deploy the bridge to an EC2 Instance manually. Automated Deployment is a TODO

Notary Smart Contract

A Simple Smart Contract that takes file has as input

1. Register the hash and the sender in the Contracts State.
2. Puts events out with Binary Serialized File Hash and Sender Account Address as witness

Web

A React frontend app with two main functionalities.

1. Allowing user to Register File using the Central Signing Service. Which does a RegisterData transaction.
2. Or Alternatively allows user to Update the Smart Contract. To register the file using his own wallet. Currently only CryptoX wallet supports connecting to the Bridge.

Demo

File Sealing : http://filesealing.newtrust.co/

Links

• CryptoX Wallet : https://apps.apple.com/sg/app/cryptox-wallet/id1593386457
• Concordium Bridge : https://hub.docker.com/r/concordiumtech/concordium-bridge
• Concordium Node SDK : https://www.npmjs.com/package/@concordium/node-sdk