The Japanese yen and the US dollar are frequently exchanged in global transactions, and the stablecoin industry has always hoped to move such cross-currency capital flows onto blockchain. On October 16th, SBI Holdings and Startale announced their joining of the Open Standard alliance, stating that they would explore interoperability pilots between the Japanese yen stablecoin JPYSC and the US dollar stablecoin Open USD ( OUSD ). The most important verb in the announcement is "explore": neither party announced the launch of new commercial services, nor did they mention that settlement or trading in a production environment had already begun. Describing the alliance as simply "a second-level exchange channel for Japanese yen to US dollars" would prematurely treat the intention to cooperate as a fact.
Announcement: JPYSC is issued by SBI Shinsei Trust Bank and is a Japanese yen-stabilized coin supported by a trust arrangement; OUSD, on the other hand, is a US dollar-stabilized coin promoted by Open Standard. The latter has already been publicly released on the blockchain, providing a foundation for studying how the two assets can be interconnected. However, "one asset has been released" does not mean that the exchange mechanism between the two assets is already available for customers to use. Cross-border scenarios involve more than just on-chain transfers; they also include issuer redemptions, exchange rate quotes, sources of liquidity, transaction monitoring, and legal responsibilities. For this reason, this news is more of a pilot entry worth tracking than a fully functional payment product.
When two stablecoins are connected, the first issue that needs to be resolved is who will quote the price and who will make the payment.
The transfer of stablecoins in a single currency on the blockchain is relatively easy to define: sending a token from address A to address B. However, when changing from JPYSC to OUSD, it is necessary to determine at least the exchange rate between Japanese yen and US dollars, the timing of the transaction, the reserve and redemption arrangements on both sides, and whether the assets can be safely returned in case of failure. If the exchange rate changes rapidly, who will bear the risk? What if the service of one chain or issuer is suspended, could there be a situation where payments have been made but the corresponding value has not been received on the other side? These are the more difficult aspects of interoperable design than simply being able to execute a cross-chain transaction.
The announcement did not disclose the transaction scale, fees, list of customers, or official launch date for the pilot program, nor did it specify which liquidity and settlement structures would ultimately be adopted. Readers should interpret this collaboration as participants beginning to discuss technical and business designs, rather than regarding it as a cross-border payment tool that is already available for use. If the pilot program develops further, it will be important to pay attention to whether regulatory authorities are involved, whether there are any limits on amounts or geographical restrictions, whether the audit and redemption procedures are made public, and what remedial measures are in place for users encountering erroneous transactions.
SBI and Startale have previously collaborated in the proof-of-concept for tokenized securities settlement and distribution payments, which provides a foundation for both parties to continue exploring the interoperability of stablecoins. However, it is also important to prevent different projects from being confused as the same outcome. The proof-of-concept in July 2026 focused on payment scenarios related to tokenized securities; the announcement in October proposed the potential interconnection between JPYSC and OUSD. The former does not automatically prove that the latter has been implemented with real customer funds. If all the various "pilots," "joinings," and "plans" along the industry chain are referred to as "launches," it will ultimately make it impossible to discern the actual progress.
The scale of an alliance can indicate interest, but it cannot replace evidence of availability.
The announcement Open Standard mentions that the alliance has attracted over 200 companies, including participants from the payment, banking, and technology sectors. The list can help the project obtain technical collaboration and potential distribution channels, but the number of members does not equate to transaction volume, nor does it mean that each member has access to the same asset. For corporate finance departments, what is truly valuable are sustainable liquidity, clear compliance responsibilities, and stable redemption pathways. Without these details, even if the transfer speed is fast, it would be difficult to handle large-scale cross-border settlements.
The interoperability between Japanese yen and US dollar stablecoins also involves different jurisdictional rules. The rights of holders of Japanese trust-based tokens may not be the same as those of US dollar stablecoins in terms of issuance and reserve arrangements. Since both types of tokens exist on the blockchain, regulatory differences cannot be automatically eliminated. If companies use them for payments, securities distribution, or fund transfers, they still need to verify the holding entities, comply with tax regulations, anti-money laundering requirements, and capital account regulations. Technical approaches should serve these business constraints rather than circumvent them.
From a market perspective, SBI and Startale's actions indicate that these institutions are more inclined to view stablecoins as a cross-currency infrastructure, rather than merely a substitute for dollars within exchanges. If real pilot results are announced in the future, key indicators will be the end-to-end settlement success rate, redemption time, quote depth, and overall costs, rather than the speed of a single demonstration transaction. What is certain today is that both companies have joined the alliance and are ready to explore interoperability; what is not certain, however, are the commercial scale, launch date, and user experience. By clarifying these boundaries, we will be able to assess how much progress has been made in the project when the next announcement is made.
When placing the Japanese yen and the US dollar within the same narrative, it is also necessary to distinguish between “transfer” and “exchange.” Just because a blockchain can transfer two types of assets does not mean that the market will necessarily provide stable quotes for the required amounts; even if quotes are available, it still depends on who will bear the exchange rate fluctuations and slippage after the transaction is executed. Cross-border businesses are more concerned with whether they can redeem the local currency as expected after the funds are credited to their accounts, as well as whether there are institutions they can contact in case of any abnormalities. The technology on the blockchain solves part of the problems related to recording and transferring assets, but liquidity arrangements, customer identity verification, and dispute resolution still fall on the participants in the real world.
For the alliance itself, the next truly significant update should include information on the institutions participating in the pilot program, the scope of permissions, details on asset issuance and reserves, test amounts, and failure scenarios, rather than just adding another list of members. If the tests are limited to a closed environment, they should be reported as such; and if any part of the system goes live, it should not be extended to full-scale commercial use. What stablecoin payments need most is not faster slogans, but a set of operational evidence that can be reviewed by external parties.
Source: Startale, October 16, 2026, " SBI Holdings and Startale Join Open Standard , Advancing Global Interoperability Between JPYSC and OUSD ": https :// www.startale.com / en / blog / openstandard-startale-sbi
