The Vault and Hinkal Improve Privacy for Institutional Stablecoin Transactions
The partnership is meant to better shield stablecoin payments for institutions without giving up compliance. See how zero-knowledge privacy plays a role here.
Key Takeaways
- The Vault is working with Hinkal to improve privacy for stablecoin transactions on its institutional custody platform.
- Hinkal uses zero-knowledge technology to verify transactions without exposing all the details publicly.
- The solution supports viewing keys and compliance checks, so institutional users can keep privacy while still meeting oversight requirements.
The Vault announced a partnership with Hinkal to improve privacy for stablecoin transactions on its institutional custody platform. The move comes as concerns grow over the transparency of public blockchains, which is becoming a bigger issue for companies moving money on-chain.
Privacy Challenges With Stablecoins
Stablecoins have grown into a market worth more than $315 billion (€275 billion), with annual payment volumes estimated by McKinsey at around $390 billion (€340 billion). A significant share of that, about $226 billion (€197 billion), comes from B2B payments. Even with stablecoins' popularity, their public nature creates a basic privacy problem. Transactions on public blockchains are transparent by default: amounts, wallet balances, and counterparties are visible to anyone. For institutional users, that means sensitive information about treasury moves, supplier relationships, and trading flows is exposed.
Innovation With Zero-Knowledge Technology
The Vault focuses on giving institutional clients professional-grade custody, treasury controls, and governance for digital assets. Hinkal adds a privacy layer by using zero-knowledge technology. This approach makes it possible to verify transactions without revealing all the details. That means a payment can be confirmed as valid without the full payment path being visible to the public.
Importantly, this privacy solution does not create full anonymity, which would get in the way of compliance and regulation. Hinkal supports features like viewing keys and compliance checks, which let authorized parties access the needed information without making it public to everyone. That makes the system a fit for institutional use, where transparency for regulators and internal audits still matters.
Why This Matters for European Financial Institutions
For European institutional investors and companies, this development could matter because it bridges the gap between the speed and efficiency of stablecoins and the privacy and compliance requirements in the region. As stablecoins take on a bigger role in treasury management and payments, it becomes more important to shield transactions from competitive information and other outside parties without losing sight of control and regulation. Integrating privacy layers like Hinkal's into custody platforms like The Vault could therefore be an important step toward broader stablecoin adoption in professional settings. In the U.S., attention to stablecoin oversight is also growing, including through new customer identification rules that are meant to bring the sector closer to traditional financial compliance.
