05 · RWA, identity
Ownex: RWA asset identity platform with Swedish BankID
- Client
- Swedish asset platform
- Industry
- RWA, identity
- Location
- Sweden
- When
- 2023, ongoing
- My part
- Full-stack work alongside the core team
Overview
Ownex is an asset identity platform. It links a real-world asset to a verified owner and records that link on a blockchain. Identity comes from Swedish BankID, which is what banks and government services in Sweden use. The registry runs on Hyperledger Fabric, and an EVM layer handles tokenization.
I contributed as a full-stack developer alongside the core team.
What I built
- 01BankID integration on the Node.js side, including session handling and certificate management.
- 02Hyperledger Fabric chaincode integration for the asset registry.
- 03Next.js application for owners and administrators, deployed on AWS Amplify.
- 04Tokenization layer with Thirdweb and Solidity.
What was hard
Problem
BankID is strict about certificates, sessions and polling behavior.
Approach
A dedicated Node.js service that owns the BankID lifecycle, with clear states for the front end to render and safe retry behavior.
Problem
Two ledgers, one truth. A permissioned Fabric network and a public EVM layer must not drift.
Approach
Event-driven sync where Fabric is the system of record for ownership and EVM tokens are derived from confirmed registry events.