BTQ Technologies announced on September 30, 2026 a three-year commercial agreement with the Kaia DLT Foundation to deploy its Quantum Secure Stablecoin Network (QSSN) across the Kaia blockchain ecosystem, bringing post-quantum security to Kaia’s transaction and settlement infrastructure, with LINE NEXT’s Unifi Wallet among the first consumer applications positioned to benefit.
BTQ CEO Olivier Roussy Newton said in the company’s announcement that the agreement advances BTQ’s strategy of making post-quantum security part of core financial infrastructure, adding that Kaia’s integration of QSSN should give Unifi and its users a stronger, post-quantum-ready foundation as the ecosystem grows.
The deal marks QSSN’s first recurring commercial deployment: rather than a one-time licensing payment, BTQ will receive a portion of transaction fees from QSSN-secured activity and expects first-year revenue in the six figures, with revenue over the three-year term tied to transaction volume.
BTQ also highlighted the agreement through its official X account, framing the deal as proof its post-quantum technology can operate as recurring, fee-based infrastructure rather than a one-time integration:
How QSSN Moves to Chain-Level Deployment
Under the agreement, QSSN will be deployed at the infrastructure layer of Kaia rather than implemented separately by individual wallets. BTQ and Kaia Foundation said the technology will introduce quantum-safe security across transaction and settlement infrastructure, including stablecoin payments, Mini DApps, and Unifi Wallet, relevant to the broader risk explained in how the quantum computing threat to crypto could affect your holdings.
| Agreement Component | Details |
| Term | Three years |
| Security system | Quantum Secure Stablecoin Network |
| Deployment | Kaia blockchain infrastructure |
| Revenue model | Share of QSSN-secured transaction fees |
| First-year revenue expectation | Six figures, USD |
| Initial consumer application | LINE NEXT’s Unifi Wallet |
Table 1. Key terms of BTQ’s commercial agreement with Kaia.
This infrastructure-level model protects activity across the network rather than requiring every application to build its own post-quantum system, and BTQ separately detailed a quantum algorithm for one-shot signatures, a cryptographic primitive offering single-use security, on September 18.
Why Kaia’s Scale Makes This Deployment Significant
The EVM-compatible blockchain has one-second block times and throughput of up to 4,000 transactions per second, according to BTQ. Kaia formed through the merger of Kakao’s Klaytn and LINE Tech Plus’s Finschia chains, connected to the KakaoTalk and LINE ecosystems.
BTQ describes the combined ecosystems as a potential user base of more than 250 million people across South Korea, Japan, Thailand, Taiwan, Indonesia, and other Asian markets, comparable to the adoption patterns in a guide to buying and selling cryptocurrencies in South Korea. This figure represents potential reach, not confirmed users.
Kaia is also building around stablecoin use cases. Native USDT has been deployed since May 2025, while the ecosystem explores infrastructure for KRW- and JPY-backed stablecoins, and its Kaia Wave initiative has attracted more than 700 project applications.
What Unifi Wallet Brings to QSSN
LINE NEXT’s Unifi Wallet is positioned as one of the first applications to benefit. Unifi is a non-custodial stablecoin wallet accessible directly through LINE Messenger, supporting wallet creation via social login, deposits, payments, transfers, rewards, and remittances.
Its supported stablecoins include USDT, Japan’s JPYC, and Indonesia’s IDRP, with QSSN protecting stablecoins at the account level, meaning these tokens receive the security layer without requiring individual issuer participation.
LINE has approximately 196 million to 200 million monthly active users across Asia, according to BTQ, though that figure shouldn’t be interpreted as the number of current Unifi users.
How the Revenue Model Ties BTQ to Actual Usage
BTQ will receive a portion of transaction fees generated by QSSN-secured activity, a usage-based model rather than a purely upfront licensing arrangement. If QSSN later deploys across additional wallets or issuers, BTQ could generate further fee-based revenue, though the agreement doesn’t disclose the fee percentage or expected transaction volume.
BTQ Already Tested QSSN in South Korea
The commercial agreement follows earlier QSSN initiatives in South Korea. BTQ previously announced QSSN was selected as the core post-quantum technology for a proof-of-concept with Finger Inc. and iM Bank, built on Kaia mainnet and described as South Korea’s first bank-led won stablecoin infrastructure incorporating post-quantum cryptography, giving the new agreement a prior commercial reference rather than an untested technology.
What Comes Next for QSSN’s Expansion
BTQ and Kaia will deploy QSSN across Kaia’s transaction and settlement infrastructure under the three-year agreement, with Unifi Wallet among the first applications to benefit.
The companies haven’t disclosed the fee percentage payable to BTQ or a detailed rollout schedule, though BTQ has said the Kaia deployment could extend to additional wallets, stablecoin issuers, and payment networks across the region.
What this means for you: BTQ is moving its QSSN post-quantum security technology from pilot projects into a three-year commercial deployment across Kaia. The chain-level integration is designed to protect stablecoin activity supporting applications such as LINE NEXT’s Unifi Wallet, which supports USDT, JPYC, IDRP, and other assets. Kaia has one-second block times and throughput of up to 4,000 transactions per second, while BTQ’s revenue will be tied to the volume of transactions secured by QSSN.
This article is for informational purposes only and does not constitute financial, investment, or technology-security advice. BTQ’s revenue expectations and statements concerning future QSSN adoption are forward-looking and subject to transaction volumes, deployment conditions, regulatory developments, technology risks, and the performance of counterparties.
