Rayls Launches Sovereign Private Blockchain to Bridge Institutional Finance and Public Markets

Rayls has launched Rayls Sovereign, an open-source, EVM-compatible blockchain infrastructure designed to bridge the gap between institutional privacy requirements and public network connectivity. For fintech professionals, this represents a significant shift toward "sovereign" institutional environments that maintain strict data governance while enabling cross-chain liquidity and asset distribution.

What was announced

Unveiled at FEBRABAN TECH 2026 in São Paulo, Rayls Sovereign is a dedicated financial system for banks, market infrastructures, and institutions developing tokenised products. The platform allows each entity to deploy its own private blockchain within its existing technology stack. This architecture ensures that sensitive data, security protocols, and governance remain under the institution's direct control, while providing the capability to connect securely to other permissioned or public networks.

The system is an evolution of the Rayls Privacy Node, re-engineered for high-volume institutional use. It is already supported by production-level metrics, including the processing of over 10,000 asset issuances per week with Núclea. Technically, Rayls Sovereign can handle more than 15,000 transactions per second (TPS) with settlement finality achieved in under one second. This performance profile is intended to support high-volume payments, atomic Delivery versus Payment (DvP) exchanges, and complex post-trade activities.

Key features include customisable governance, open-source access, and simplified integration with legacy banking, treasury, and custody systems. By sharing only necessary cryptographic proofs or data for external transactions, institutions can manage tokenised deposits, stablecoins, and receivables without exposing confidential client balances or internal trading activity to the broader market.

"Financial institutions need a secure and practical way to bring assets and financial processes onchain while maintaining control over their data, systems and governance. Rayls Sovereign gives each institution its own environment for onchain operations, with the connectivity needed to transact across wider markets without forcing institutions to compromise on privacy or control."

Marcos Viriato, CEO of Parfin and core developer of Rayls.

The companies involved

Rayls provides the blockchain infrastructure layer connecting traditional finance with onchain ecosystems. The technology is developed by Parfin, a firm focused on institutional-grade digital asset infrastructure. Parfin has established a significant footprint in the Latin American market, collaborating with major regional players to transition financial services toward decentralized ledger technology.

The launch involves several key market participants already utilizing the underlying technology. Núclea, recognized as the largest payment processor in the Southern Hemisphere, uses the infrastructure for large-scale asset issuance. XP Inc., a major financial services group, has utilized the framework for its USDXP initiative, proving the viability of institutional digital assets in a regulated environment. Additionally, Nimofast Global, part of the Nimofast Group, is employing the system to scale the tokenization of real-world energy and logistics assets. The broader ecosystem surrounding these developments includes significant market actors such as the Central Bank of Brazil, J.P. Morgan, and Accenture, alongside investment support from venture firms including Framework Ventures, ParaFi Capital, and Valor Capital.

What FF News has reported before

FF News has closely tracked the acceleration of institutional tokenization and the infrastructure required to support it. Recently, we covered how Taurus Unlocks Full Hedera Stack for 40+ Global Banks to scale Digital Asset Tokenization, highlighting the growing demand for bank-grade digital asset tools. Our coverage of the Brazilian market also includes the news that StoneX to Acquire Banco Travelex to Scale Brazil Payments and FX Infrastructure, underscoring the rapid modernization of the region's financial rails. These developments align with the launch of Rayls Sovereign as institutions seek more robust, scalable ways to integrate blockchain into regulated environments.

What this means

The launch of Rayls Sovereign moves the needle by addressing the "walled garden" problem of private blockchains. For years, institutions were forced to choose between the security of isolated private ledgers and the liquidity of public networks. By offering a middle ground—sovereign control with interoperable "hooks"—this announcement puts pressure on legacy infrastructure providers who have struggled to offer sub-second finality at scale. The move toward open-source EVM compatibility also suggests that the industry is coalescing around Ethereum-based standards for institutional use. The primary question remaining for the sector is how quickly global regulators will harmonize standards for the cryptographic proofs used to bridge these sovereign nodes with public liquidity pools.