idOS x Partisia Blockchain: Unlocking Self‑Sovereign Identity With MPC

 

Digital identity (DID) has been a perennial weak link in Web3. Password‑less log‑ins, privacy‑by‑design, and strict compliance frameworks (GDPR, MiCA) have each begun to be solved in isolation, but never together. The idOS and Partisia partnership changes that. 

idOS is a chain-agnostic, user-controlled decentralized identity system; Partisia Blockchain supplies a production‑hardened MPC layer that shards and safeguards every private key. 

The result is the first fully open, zero‑custody identity stack able to scale from indie dApps to enterprise‑grade deployments.


Thanks to Partisia’s key abstraction, users can manage their idOS data securely without having to download new identity wallet software or remember a password; a simple signature with their wallet of choice will suffice. Partisia will be implemented as a native module within the idOS Storage Network, the L1 blockchain at the heart of idOS. Partisia struck the right balance of security, flexibility, and cost-effectiveness compared to other TSS-MPC providers, and we benefit from their collective decades of cryptography research and implementation leadership.”


Ben Basche, idOS CPO


THE IDENTITY BOTTLENECK

Millions of wallets, hundreds of blockchains, and still the same awkward dance: copy a seed phrase, re‑upload documents, hope nothing gets lost.  Web3 has delivered on transparency but fallen short on reusable privacy‑preserving identity.  Every attempt so far has had to juggle three goals that rarely align:

  1. Security: Keys must be immune to single‑server hacks.
  2. Usability: Signing in should feel as effortless as OAuth in traditional applications.
  3. Compliance & Privacy: KYC data must stay encrypted yet verifiable.


Most solutions pick two and leave a gap. idOS covers usability and compliance, but securing the underlying keys, without adding a central custodian, remained unsolved. That is where Partisia’s fifteen‑year battle‑tested Multi‑Party Computation (MPC) fits in.


THE PARTNERSHIP

idOS is backed and governed by the idOS Consortium, including leading web3 projects like NEAR, Ripple, Arbitrum, and Circle, and serves as the identity layer for apps across multiple chains. Its modular SDK enables developers to integrate reusable, verifiable credentials, streamlining data access management for apps.

Users control their data by granting access via wallet signatures. Credentials are encrypted, reusable, and shared across apps with minimal friction.

Partisia Blockchain brings a production‑grade MPC engine. In practice, it slices every private key into cryptographic shards and distributes them across independent validator nodes. No shard, on its own or in any minority coalition, reveals anything useful. The key is only re-assembled in memory for milliseconds, under quorum, and never lives in a single place.

The net result is the first identity network where:

  • Users keep the familiar idOS login flow – no new hoops.
  • Attackers must compromise a whole federation of nodes to steal a key.
  • Regulators can audit permissions and revocations without seeing raw Personally Identifiable Information.

PARTISIA BLOCKCHAIN’S MPC: UNDER THE HOOD

Traditional custody stores an encrypted key on a server. Lose the server, lose the key.

MPC treats the key like a jigsaw puzzle:

  • Creation: The puzzle pieces are generated independently; no complete picture ever exists.
  • Signing / Decryption: Each node performs its fragment of the math; the network combines partial results into a valid signature.
  • Recovery: If a node goes offline, redundancy algorithms route around it; users don’t notice.

Because Partisia designed its public blockchain around MPC from day one, latency stays low enough for real‑time authentication, a critical point for consumer dApps.


WHY THIS MATTERS TODAY:

  • For Developers: Plug into a single SDK and forget about key custodians, HSMs, or ‘reset your seed’ screens.
  • For Enterprises & Fintechs: Gain GDPR‑grade privacy and audit trails, removing a major blocker to on‑chain services.
  • For Users: Complete KYC once and re‑use it everywhere without re‑exposing documents. Manage your data from your wallet, without the need to download new software and remember new passwords or keys.

Early pilots with consortium members will stress‑test the stack this summer; public onboarding is slated for Q4 2025.


THE BIGGER PICTURE:

Once the heavy cryptography is in place, new primitives become trivial, particularly with developments like GODS Network:

  • Selective disclosure proofs: Share “I’m over 18” without sharing birth date.
  • Cross‑chain credential portability: Enable cross-chain credential portability: Seamlessly use your encrypted idOS profile on Polygon or BNB by simply adding supported wallets—no need to re-issue keys or migrate profiles.
  • Encrypted on‑chain messaging: MPC‑secured inboxes tied to the same identity graph.

Each layer compounds the previous one, nudging web3 closer to a world where identity is flexible and composable, not captive or confined to any single ecosystem


THE ROAD AHEAD:

Closed beta with consortium dApps is expected in Q3 2025. This will be followed by the release of the public SDK and docs in Q4 2025 as the early pilots begin stress testing the solution.


CLOSING THOUGHTS:

For years, decentralised identity talked about self‑sovereignty while leaning on centralised key stores or fragile seed phrases.  By merging idOS’s user‑friendly credential system with Partisia’s production‑proven MPC, the partnership turns that rhetoric into concrete infrastructure—one that developers can call with a few lines of code, and that users never need to think about.

If the launch delivers on its roadmap, the bigger win isn’t just safer logins; it’s laying a cryptographic foundation sturdy enough to let identity and privacy finally scale together.


About idOS

idOS is a decentralized, chain-agnostic identity layer designed to give users control over their data. It allows individuals to create, own, and manage verifiable credentials that can be reused across blockchains and dApps. With privacy and security as core principles, idOS ensures sensitive information stays encrypted and in the user’s control. Developers and enterprises can access compliant identity solutions while minimizing friction and simplifying integration with their modular SDK.


About Partisia Blockchain

Partisia Blockchain is an innovative data ownership and privacy-preserving layer-1 blockchain built for real-world utility. Combining zero-knowledge proofs and secure multi-party computation (MPC), it empowers developers and enterprises to build decentralized applications with data privacy at the core. From RWAs and digital identity to supply chain and AI, Partisia is driving the next generation of blockchain use cases across web2 and web3 industries.


Read More 

Our partner announcement can be found here.

Key-abstracted, Self-sovereign Identity? idOS and Partisia Blockchain MPC tech are Making It Possible


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TOPPAN Edge and Partisia: Bringing Privacy-First Digital Identity from Campus to Public Blockchain

 

Pioneering a New Era of Trusted, User-Centric Digital Identity

Tokyo, April 2025 – In a world where identity is the gateway to education, work, and daily life, the need for secure, user-controlled, and globally trusted solutions has never been greater. This is magnified by a world that is becoming increasingly more connected and digital. Today, TOPPAN Edge and Partisia announce a groundbreaking partnership and proof-of-concept at the Okinawa Institute of Science and Technology (OIST), aiming to redefine how digital identity works for students. This solution is a bedrock for digital identity, with applications that can span industries and use cases. 

This collaboration is more than a technical integration. It’s a shared vision to bridge the familiar convenience of web2 with the trust, privacy, and interoperability of web3. By combining TOPPAN Edge’s 100+ years’ experience, including a 33% market share in Japanese ID systems, with Partisia’s advanced cryptography and blockchain solutions, the partnership is setting a new standard for privacy-first, decentralized, digital identity (DID).


Why Digital Identity Needs an Upgrade

Japan alone has over 813 universities, 360 of which issue IDs with IC chips (FeliCa). This involves a process that is costly, slow, and increasingly vulnerable to impersonation and fraud. Meanwhile, students already carry NFC-enabled smartphones and are accustomed to seamless, app-based, digital experiences. The challenge is to deliver a digital identity solution that is as easy to use as a tap on your phone, but as secure and private as the most advanced cryptography can provide.

At the same time, global standards are rising. The EU’s eIDAS 2.0 and Japan’s Trusted Web initiative demand solutions that are not only secure and user-centric but also interoperable across borders and compliant with the latest privacy regulations. The answer lies in a hybrid approach: leveraging the best of web2 user experience and web3’s decentralized trust infrastructure.


The Solution: Hybrid Architecture for Mass Adoption

The OIST pilot brings together the strengths of both partners in a layered, future-proof architecture:

  • Issuance: Student photos are captured via TOPPAN Edge’s CloakOne® cloud service, then encrypted using Partisia’s secure multi-party computation (MPC) technology. This ensures that sensitive biometric data never leaves the user’s device unprotected.
  • Registry: Decentralized identifiers and credential hashes are anchored on the Partisia blockchain, providing a tamper-proof, transparent audit trail that meets eIDAS 2.0 and Trusted Web requirements.
  • Wallet: Students receive a white-label mobile wallet app, allowing them to tap their phone for campus access, exam check-in, and more, without ever exposing personal information to third parties.
  • Verification: Exams, facility doors, and other checkpoints verify credentials in under a second, using cryptographic proofs and, when needed, on-chain checks for revocation or status.

This hybrid model ensures that universities can adopt the system with minimal disruption, while students benefit from privacy, security, and convenience.


PI vs. PBC: Who Does What?

A key innovation of this project is the clear division of roles between Partisia Infrastructure (PI) and Partisia Blockchain (PBC):

  • PI (Partisia Infrastructure): Delivers the enterprise-grade, private SaaS stack, handling wallet UI, credential issuance, and fast, off-chain verification. This ensures a smooth, Web2-like experience for users and institutions.
  • PBC (Partisia Blockchain): Provides the public, decentralized trust layer anchoring DIDs, managing revocation lists, and enabling transparent, on-chain auditability. Over time, more components (such as registry smart contracts and credential verification) will migrate to the public chain, unlocking new business models and tokenized incentives.

This architecture not only future-proofs the solution but also positions it for mass adoption, both in Japan and globally.


The OIST Pilot: A Blueprint for the Future

From June to September 2025, the pilot at OIST will involve up to 50 participants from the Applied Cryptography Unit. While the immediate focus is on access control within a university setting, the broader goal is to lay the groundwork for a scalable, privacy-first digital identity infrastructure. 

This proof of concept begins with private issuance and verification to ensure the system functions seamlessly in a controlled environment. It then progresses to integration with Partisia’s public blockchain, the release of a public-facing wallet, and the deployment of an on-chain credential registry.

Crucially, this pilot is not the end state. It’s a critical foundation. The architecture being tested is designed to evolve beyond student IDs and campus access, opening the door to applications in IoT, payment infrastructure, and digital identity systems for employers, healthcare, and beyond. By anchoring this work to the Partisia blockchain, this collaboration supports the long-term goals of Japan’s Trusted Web initiative, offering a decentralized, interoperable solution where user control and privacy are built in from the start.

Key performance indicators include sub-second check-in times, zero false-accepts, and full compliance with GDPR and eIDAS audit requirements. The success of the pilot will be a critical first step in building the next generation of secure, user-centric identity systems.


Beyond Campus: Expanding Use Cases

The potential of this platform extends far beyond student IDs. Future applications include:

  • Digital diplomas and alumni IDs: Credentials that can be transferred to job-market wallets or used for cross-border student exchanges.
  • IoT and smart city access: Linking digital identities to physical infrastructure, such as transport systems, public buildings, or municipal services.
  • Payments and financial onboarding: Integration with digital wallets and financial institutions, enabling identity-verified transactions and seamless KYC flows in compliance with local and global regulations.
  • Healthcare and government IDs: Leveraging Toppan’s market leadership in ID card printing to bring privacy-first digital identity to hospitals, workforce credentials, and public services.
  • Event ticketing and supply chain: Fraud-proof passes and staff IDs, with on-chain revocation and auditability.

By anchoring these use cases on a public blockchain, the solution ensures interoperability, transparency, and long-term trust.


Token Utility and On-Chain Activity

As the ecosystem grows, the Partisia blockchain will play an increasingly vital role in securing and governing digital identities. While the initial focus is on establishing a robust and user-friendly platform, future iterations may include:

  • On-chain verification: Enabling verifiers to check credential status directly on the blockchain, reducing reliance on issuers and enhancing trust.
  • Tokenized incentives: Introducing staking mechanisms and fees (potentially in $MPC) for issuers and verifiers, aligning incentives and fostering a sustainable ecosystem.
  • Governance: Evolving the platform into a decentralized governance framework for digital identity, ensuring community participation and long-term viability.

These features will not only enhance the utility of Partisia blockchain but also create new opportunities for innovation and value creation.


Executive Perspectives

“By fusing TOPPAN’s proven access-control hardware with Partisia’s privacy tech, we’re making the jump from Web2 convenience to Web3 trust, and setting a new global benchmark.”
Mark Medum Bundgaard, Chief Product Officer, Partisia

“This collaboration lays the foundation for a new data economy where confidential student data can finally be activated without ever being exposed.”
Kurt Nielsen, CEO & Co-founder, Partisia Blockchain

“Japan is embracing blockchain to make identity both secure and user-centric. With Partisia, privacy is built-in from day one.”
Masatoshi Oka, General Manager, ID Business Management Division, TOPPAN Edge


What’s Next

Building on the outcomes of the OIST pilot, the roadmap for this collaboration intends on exploring:

  • Broader access to the SDK: Expanding availability to additional universities and institutional partners for experimentation and integration.
  • Ecosystem development: Extending digital identity use cases into healthcare, smart cities, and workforce credentials. Both in Japan and globally.
  • User experience refinement: Iterating on wallet design, onboarding flows, and credential management to meet the needs of diverse user groups.
  • Decentralized governance and incentives: Exploring staking models and token utility ($MPC) to align incentives across issuers, verifiers, and users.
  • Regulatory engagement: Supporting compliance efforts aligned with frameworks such as eIDAS 2.0 and Japan’s Trusted Web, while promoting interoperability at an international level.

Institutions, developers, and regulators interested in early collaboration can find out more from our presentation at the European Identity & Cloud Conference on May 6, 2025, in Berlin.


About the Partners

TOPPAN Edge is a group company of TOPPAN Holdings, established in Tokyo in 1900. As a leader in digital transformation, security, and integrated solutions, TOPPAN Edge is dedicated to solving corporate and social challenges with cutting-edge approaches, including Hybrid-BPO® and advanced payment services. With a 33% market share in Japanese ID systems, TOPPAN Edge is uniquely positioned to drive the adoption of privacy-first digital identity solutions.

Partisia is a Denmark-based pioneer in privacy-preserving blockchain and secure multi-party computation (MPC). Founded by world leaders in cryptography, Partisia launched the world’s first commercial MPC solution in 2008 and now empowers enterprises and developers to build decentralized applications with privacy at their core.

Privacy isn’t an add-on; it’s in the protocol. Join us as we bring user-centric identity to every corner of the internet.


About Partisia Blockchain

Partisia Blockchain is an innovative, public, data ownership and privacy-preserving layer-1 blockchain built for real-world utility. Combining zero-knowledge proofs and secure multi-party computation (MPC), it empowers developers and enterprises to build decentralized applications with data privacy at the core. From RWAs and digital identity to supply chain and AI, Partisia is driving the next generation of blockchain use cases across web2 and web3 industries.


Read More 

Announcements can be found from our partners at Toppan and Partisia below. 


Ready to build a more confidential, scalable future?
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Advancing Partisia Blockchain: Four Upgrades Enhancing the Ecosystem

Advancing Partisia Blockchain: Four Upgrades Enhancing the Ecosystem

At Partisia Blockchain, our commitment to continuous innovation drives us to enhance usability, security, and adoption. Our latest technical update delivers four key upgrades outlined in our H1 2025 technical roadmap, reinforcing the foundation for greater scalability, developer flexibility, and a seamless user experience. 

These upgrades enhance transparency, efficiency, and developer tooling, strengthening DeFi, enterprise adoption, and beyond. 

Read on to learn more about these upgrades, along with some additional exciting elements of our roadmap planned for the coming months.

4 Key Upgrades Now Live

As part of our H1 2025 Technical Roadmap, the following upgrades have now been completed:

  1. Enabling bridge and MPC movements visibility in the Browser
  2. Add fiat onramp to Partisia’s explorer (Browser) via Transak
  3. Upgradeable smart contracts
  4. Initial contracts for liquid staking.

 

Let’s dive into each of these to understand what they mean for users and developers.

Bridge & MPC Movements Now Visible in Browser

Status: Live in Phase 1
Why It Matters: Enhanced transparency & usability

One of the biggest UX improvements for Partisia Blockchain users is the ability to track BYOC (Bring Your Own Coin) movements directly in the Browser.

Key Benefits:

  • Complete Visibility: Users can now track BYOC activities on their accounts, improving transparency.
  • Single Asset View: A unified BYOC view is available for all coins, making asset tracking easier.
  • Detailed Transaction Insights: Clicking on any asset reveals granular insights into transaction history and movements.

Explore the Update:

What’s Next?

  • Further UI/UX improvements for smoother navigation and visibility.
  • Integration of gas and transaction details for added transparency.
  • Tracking of MPC token and some additional categories of BYOC movements, including fees earned by node operators, will also be added soon.

Transak Fiat Onramp Now Integrated into Browser

Status: Fully integrated with API Key support
Why It Matters: Seamless fiat-to-crypto access

The integration of Transak into Partisia’s Browser Explorer is a big step toward simplifying onboarding into the Partisia Blockchain ecosystem. Users can now buy MPC directly with fiat, without needing external tools!

How It Works:

  • Buy MPC via the Browser, with network & wallet address auto-filled (when logged in).
  • Minimal manual entry – users complete purchases and are redirected back to the Browser.

Try it out here: 

  1. Go to https://browser.partisiablockchain.com/ and sign in with your wallet.
  2. Click ‘GET MPC’ at the top right of the navigation bar
  3. Select ‘Transak’

 

What’s Next?

  • Refining the onramp flow for a frictionless one-click fiat-to-MPC experience.

Liquid Staking Smart Contracts

Status: Open-sourced for the ecosystem
Why It Matters: Flexible staking, improved liquidity

Liquid staking allows users to stake their assets while maintaining liquidity, a feature that has become a standard in DeFi. With this open-source release, developers and ecosystem contributors can now integrate liquid staking into their applications! 

Key Benefits:

  • Flexible Staking: Users stake tokens while receiving a receipt token (eg. sMPC), allowing for further use across DeFi applications
  • More Liquidity: Unlike traditional staking, funds are not locked.
  • Ecosystem Expansion: Sceptre is already using this contract as the foundation for its liquid staking solution.

Want to view the Liquid Staking Contracts? Click here to check out the repo.

What’s Next?

  • The open-source nature means other teams can also build on top of it, increasing adoption within the Partisia ecosystem through expanded DeFi applications.
  • Future iterations could explore multi-party computation (MPC) privacy enhancements for staking.

Upgradeable Smart Contracts Now Supported

Status: Implemented
Why It Matters: Security, flexibility and long-term usability

While upgradable smart contracts have become an industry standard and critical component in modern blockchains, their addition to Partisia Blockchain unlocks significant improvements for developers and enterprises. 

Key Benefits:

  • Bug Fixes & Security Patches: Contracts can now be updated without disrupting users.
  • Feature Enhancements: New functionalities can be added seamlessly without requiring a complete redeployment of the contract.
  • Regulatory Compliance: Enables adaption to regulatory changes without forcing users to migrate.
  • Cost Efficiency: Eliminates the need for fees associated with deploying new contracts.
  • Improved UX: Users continue interacting with the same contract address, even after updates, preventing fragmentation or confusion.

What’s Next?

  • Expanded use cases, including DeFi applications, staking solutions, and enterprise integrations.
  • Further improvements to developer tooling to maximize flexibility and adoption.

Looking Ahead: More Upgrades Coming SOON!

These four enhancements mark a key leap forward in making the Partisia Blockchain ecosystem more accessible, transparent and developer-friendly. 

But, this is just the start. In the coming months, we’re rolling out even more game-changing upgrades to push privacy, performance, and usability to the next level:

Keys & Signing in MPC: Enhancing Security & Privacy

  • Enables secure cryptographic signing using MPC – removing reliance on a single private key.
  • Protects transactions, wallet security, and privacy-preserving smart contracts from exposure.

Gas & Transaction Details: Greater Transparency for Users and Node Operators

  • Track gas fees in real-time to understand transaction costs.
  • Node operators can see detailed earnings breakdowns, improving visibility into rewards.

Smart Contract Staking: Unlocking New DeFi Possibilities

  • Enables staking logic to be built directly into smart contracts.
  • Opens up auto-compounding, reward customization, and new DeFi models.

But, there’s more. Below are a few more items on the roadmap that we’re extremely excited about:

Real MPC Arithmetic: Enhancing Precision and Performance

What is it?

Traditional privacy solutions slow things down – but with Real MPC Arithmetic, speed and privacy no longer need to be a trade-off. Building upon our core MPC technology, this advancement enables faster and more efficient secure computations.

Why you should be paying attention!

  • Up to 1000x faster secure computations, enabling real-time private transactions.
  • Removes delays in privacy-preserving DeFi, allowing for instant confidential transactions.
  • Optimized for high-speed AI models, private financial analysis, and large-scale encrypted data processing.

Think real-time encrypted DeFi, faster private swaps, and scalable enterprise blockchain solutions – all without sacrificing privacy.

Privacy-Preserving AI: Secure AI Without Exposure

What is it?

What if AI could analyze your sensitive data – without ever exposing it? This component of the roadmap will integrate privacy-enhancing mechanisms into AI, allowing for applications that conduct data analysis and machine learning without compromising data confidentiality.

Why you should be paying attention!

  • AI can process financial, medical, and personal data without actually accessing raw information.
  • Enables privacy-first AI models for loan approvals, risk assessments, and medical research
  • Unlocks decentralized AI decision-making without compromising security or compliance.

Get ready for AI with trustless privacy – keeping data confidential while still allowing AI-powered automation.

Decentralized Identity (DID) and Secure Key Management

What is it?

Imagine a world where you control your identity – without centralized databases tracking your data. DID empowers users with self-sovereign identity solutions and secure key management, enhancing privacy, security and usability.

Why you should be paying attention!

  • Full user control over identity, authentication, and credential verification.
  • Secure logins for Web3 applications—without passwords or personal data exposure.
  • Verifiable credentials (eg. proving your age, occupational status or creditworthiness) without sharing extra details.

Privacy-preserving, flexible, and built for a decentralized internet. Exciting!

A Privacy-First Future is Coming

These upcoming features will redefine blockchain privacy, security, and AI-driven trustless automation.

Join us on this journey – make sure to follow us on social platforms and join our extremely passionate community over on Telegram and Discord.

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