Hyperledger Iroha 3
Complete migration from Substrate to the next-generation Iroha framework.
SORA Nexus Announcement
SORA Nexus Announcement
Section titled “SORA Nexus Announcement”Published: November 30, 2025
In late 2025, the SORA team unveiled SORA Nexus — the next-generation blockchain network that represents the most significant architectural evolution since SORA’s inception. Built on Hyperledger Iroha 3, Nexus introduces breakthrough technologies designed to position SORA as the backbone for global digital finance.
The Vision
Section titled “The Vision”SORA Nexus is not merely an upgrade—it’s a fundamental reimagining of what the SORA network can be:
“SORA Nexus creates a supranational platform where CBDCs and digital assets operate free from political and economic instability.”
Key Announcements
Section titled “Key Announcements”Sub-Second Finality
Transactions finalize in under one second using enhanced Sumeragi consensus.
Data Spaces
Modular architecture enabling domain-specific blockchain applications.
FASTPQ Security
Post-quantum cryptographic primitives for future-proof security.
Technical Highlights
Section titled “Technical Highlights”From Substrate to Iroha 3
Section titled “From Substrate to Iroha 3”The decision to migrate from Substrate to Hyperledger Iroha 3 reflects SORA’s evolving requirements:
| Aspect | SORA v2 (Substrate) | SORA Nexus (Iroha 3) |
|---|---|---|
| Finality | 12-60 seconds | Sub-second |
| Smart Contracts | Ink! WASM | ISI + WASM |
| Consensus | BABE/GRANDPA | Sumeragi BFT |
| Enterprise Focus | Limited | Native |
| CBDC Support | Workarounds | Built-in |
Sumeragi Consensus Evolution
Section titled “Sumeragi Consensus Evolution”The enhanced Sumeragi consensus algorithm provides:
- Deterministic finality — No block reorganizations
- Byzantine fault tolerance — Operates with up to 1/3 malicious nodes
- High throughput — Thousands of transactions per second
- Low latency — Block times under 2 seconds
Data Spaces Architecture
Section titled “Data Spaces Architecture”One of Nexus’s most innovative features is the Data Spaces concept:
┌─────────────────────────────────────────────────────────┐│ SORA Nexus Hub ││ ┌─────────────┐ ┌─────────────┐ ┌─────────────┐ ││ │ DeFi │ │ CBDC │ │ Enterprise │ ││ │ Data Space │ │ Data Space │ │ Data Space │ ││ └─────────────┘ └─────────────┘ └─────────────┘ │└─────────────────────────────────────────────────────────┘Each Data Space can have:
- Custom governance rules
- Specialized validators
- Domain-specific logic
- Controlled interoperability
Economic Implications
Section titled “Economic Implications”XOR in the Nexus Era
Section titled “XOR in the Nexus Era”XOR remains the native utility token, with enhanced roles:
- Transaction fees across all Data Spaces
- Staking for validator participation
- Governance through SORA Parliament
- Bridge collateral for cross-chain operations
CBDC Integration
Section titled “CBDC Integration”Nexus positions SORA as infrastructure for Central Bank Digital Currencies:
- National banks can deploy sovereign Data Spaces
- Assets remain de-correlated from political instability
- Global settlement layer connects isolated economies
- SORAMITSU’s CBDC expertise embedded
Governance Evolution
Section titled “Governance Evolution”The SORA Parliament receives significant upgrades:
Iroha Special Instructions
Section titled “Iroha Special Instructions”Governance logic implemented via ISI:
- Modular proposals — Domain-specific voting
- Automated execution — On-chain enforcement
- Cross-Data Space coordination — Unified governance
Enhanced Democracy
Section titled “Enhanced Democracy”- Sortition-based citizen selection continues
- XOR bonds for citizenship maintained
- New Panel structures for specialized decisions
- Integration with external governance (Polkadot, TON)
Development Status
Section titled “Development Status”At announcement, the team revealed:
| Component | Status |
|---|---|
| Iroha 3 Core | Active development |
| Nexus Repository | Private alpha |
| Fujiwara Testnet | Live (Iroha 2) |
| Migration Plan | In planning |
| Whitepaper | Drafting |
Community Response
Section titled “Community Response”The announcement generated significant discussion:
- Validators — Interested in new staking mechanics
- Developers — Excited about ISI capabilities
- DeFi users — Looking forward to speed improvements
- Enterprise — Intrigued by Data Spaces concept
What’s Next
Section titled “What’s Next”Following the announcement, the roadmap includes:
- Whitepaper release — Full technical specification
- Testnet expansion — More Nexus-specific testing
- Migration planning — Detailed v2 → v3 pathway
- Partner integration — CBDC and enterprise pilots
Learn More
Section titled “Learn More”SORA Nexus
Iroha Technology
Original Article
Whitepaper