Interoperability: Connecting Institutional Tokenization Platforms
Capital markets tokenization has fragmented across dozens of blockchain platforms — JPMorgan Onyx runs on Quorum, Goldman Sachs GS DAP uses Canton Protocol, HSBC Orion operates on proprietary infrastructure, Broadridge DLR uses a permissioned DLT, and public blockchain issuances span Ethereum, Polygon, Stellar, and Avalanche. Without interoperability, a tokenized bond issued on GS DAP cannot be custodied on Onyx, used as collateral on Broadridge DLR, or settled through DTCC. This fragmentation is the single greatest technical barrier to institutional tokenization scale.
Canton Network
Canton Network — backed by 75+ institutional participants including Goldman Sachs, BNY Mellon, Deloitte, S&P Global, and Moody’s — provides privacy-preserving interoperability for institutional DLT applications. In November 2025, Broadridge enabled Societe Generale’s first U.S. digital bonds on Canton Network, demonstrating production cross-platform interoperability between Broadridge DLR and Canton-connected applications. MAS Project Guardian has expanded to 40+ institutional participants testing cross-border tokenized asset flows through interoperable infrastructure. Built on the Canton Protocol (developed by Digital Asset Holdings using its DAML smart contract language), Canton Network enables applications running on different blockchains to transact with each other while maintaining data privacy — each participant sees only the data they are authorized to access.
Canton’s approach to interoperability is application-layer rather than blockchain-layer. Rather than bridging tokens between chains (the approach used by Chainlink CCIP, LayerZero, and other cross-chain protocols), Canton connects applications that share a common smart contract language (DAML) running on diverse underlying blockchains. This means a custody application on one blockchain can interact with a settlement application on another blockchain through Canton without moving tokens between chains.
SWIFT Linking
SWIFT completed Phase 2 of its tokenized asset transfer experiments in 2024, demonstrating that existing SWIFT messaging infrastructure can coordinate transactions across multiple blockchain networks. SWIFT’s approach uses its established ISO 20022 messaging as the coordination layer, with blockchain transactions triggered by SWIFT messages. This preserves the existing institutional workflow — banks continue using SWIFT for communication — while adding blockchain-based settlement as a new execution layer.
SWIFT’s 11,500+ member institutions represent the largest existing financial messaging network. If SWIFT messaging can reliably trigger and confirm tokenized asset transfers across blockchains, the interoperability problem is effectively solved for institutional participants who already use SWIFT. The challenge is latency: SWIFT messages are designed for batch processing, not the real-time coordination required for atomic DvP settlement.
Cross-Chain Protocols
Chainlink’s Cross-Chain Interoperability Protocol (CCIP) provides general-purpose cross-chain messaging and token transfer for both public and private blockchains. Several institutional pilots have used CCIP for tokenized asset transfers, including SWIFT’s own experiments. CCIP’s oracle network provides the trust layer for cross-chain communication, with institutional-grade service level agreements.
LayerZero, Axelar, and Wormhole provide alternative cross-chain messaging protocols, each with different trust assumptions and performance characteristics. For institutional use cases, the critical requirements are: finality guarantees (ensuring cross-chain messages cannot be reverted), privacy (preventing counterparty identification through cross-chain transaction analysis), and regulatory compliance (maintaining audit trails that satisfy regulatory requirements).
Standards Development
ISO TC 307 (Blockchain and Distributed Ledger Technologies) is developing international standards for blockchain interoperability, including token transfer protocols and cross-chain messaging formats. The IEEE Blockchain Interoperability Standards Working Group provides technical specifications. Within the financial industry, ISDA’s Common Domain Model (CDM) provides standardized representations of financial instruments that could serve as the common language for cross-platform tokenized asset description.
For fixed-income tokenization, interoperability enables a tokenized bond issued on one platform to be traded on another, custodied by a third-party custodian, and used as repo collateral on a fourth platform. For equity tokenization, interoperability enables cap table tokens to trade on multiple secondary markets. For private markets, interoperability enables PE fund tokens to be used as collateral across DeFi and institutional lending platforms.
The path to universal interoperability likely involves multiple coexisting solutions: Canton Network for institutional application connectivity, SWIFT for messaging coordination, and cross-chain protocols (CCIP, LayerZero) for token transfers. Convergence toward fewer standards will take years, but the institutional demand for cross-platform tokenized asset operations is driving investment in all three approaches.
Interoperability for Tokenized Bond Markets
The tokenized bond market illustrates why interoperability is critical for institutional adoption. A typical institutional bond transaction involves multiple platforms: the bond is issued on GS DAP or HSBC Orion, custodied at BNY Mellon (which may use a different blockchain for custody records), traded on SDX or ADDX (operating on their own DLT infrastructure), and potentially used as collateral on Broadridge DLR for repo financing.
Without interoperability, each of these steps requires the bond to be “bridged” between platforms — creating operational complexity, settlement risk at each bridge point, and potential legal uncertainty about where the authoritative ownership record resides. Canton Network addresses this by providing a shared protocol layer that enables applications on different blockchains to transact without moving tokens between chains.
For the EIB digital bond program — which has issued bonds through multiple platforms across Luxembourg, France, and Hong Kong — interoperability would enable a single EIB digital bond to be traded cross-platform without requiring separate listings on each venue. This cross-platform liquidity aggregation directly addresses the secondary market liquidity challenge by concentrating order flow rather than fragmenting it.
SWIFT Tokenized Asset Transfer Architecture
SWIFT completed three phases of tokenized asset transfer experiments between 2023 and 2025, progressively expanding the scope from simple token transfers to complex multi-leg transactions involving multiple blockchains and asset types. The Phase 3 experiments demonstrated coordinated settlement of tokenized bonds with simultaneous FX conversion and regulatory reporting — a multi-step process that SWIFT’s existing messaging infrastructure orchestrated across blockchain platforms.
SWIFT’s competitive advantage is its existing network: 11,500+ member institutions already connected through SWIFT messaging. By positioning SWIFT as the orchestration layer for cross-chain transactions, the tokenized asset transfer architecture avoids requiring institutional participants to adopt new communication infrastructure. A bank that currently settles traditional bonds through SWIFT messages could settle tokenized bonds through the same SWIFT messages, with blockchain settlement happening as a back-end process invisible to the bank’s operations team.
The limitation of SWIFT’s approach is latency. SWIFT messages are designed for batch processing and can take minutes to hours for end-to-end delivery. Atomic DvP settlement — where security and cash transfer simultaneously — requires real-time coordination that SWIFT’s current architecture may not support. The tension between SWIFT’s institutional adoption advantage and its latency limitation will shape the eventual interoperability architecture: SWIFT for orchestration and regulatory messaging, Canton Network and cross-chain protocols for real-time settlement coordination.
Chainlink CCIP: Institutional Cross-Chain Protocol
Chainlink’s Cross-Chain Interoperability Protocol (CCIP) has emerged as the leading general-purpose cross-chain messaging standard, with institutional endorsements from SWIFT (which integrated CCIP in its tokenized asset experiments), ANZ Bank (which used CCIP for cross-chain stablecoin transfers), and several BIS-affiliated central bank experiments.
CCIP provides three capabilities relevant to institutional tokenization: cross-chain token transfers (moving tokenized securities between blockchains), cross-chain messaging (coordinating settlement steps across platforms), and programmable token transfers (attaching compliance conditions and payment instructions to cross-chain transfers). For tokenized Treasury products available on multiple chains (BENJI on Stellar, Ethereum, Polygon, Avalanche), CCIP could enable seamless cross-chain transfers while maintaining the compliance restrictions (KYC whitelist verification) required for regulated securities.
Regulatory Implications of Interoperability
Cross-chain interoperability creates regulatory challenges that single-chain tokenized securities do not face. When a tokenized bond transfers from a platform regulated under EU DLT Pilot Regime to a platform regulated under Singapore MAS licensing, which jurisdiction’s settlement finality rules govern? If the transfer fails mid-process — the bond leaves one chain but doesn’t arrive on the other — which regulatory framework provides investor protection?
The legal framework analysis for cross-chain tokenized securities requires attention to governing law clauses that specify which jurisdiction’s laws apply regardless of the blockchain platform. Luxembourg law and Swiss DLT Act provide the most developed legal frameworks for cross-chain scenarios, with explicit provisions for DLT-based securities that may transfer between platforms.
The G20 tokenization roadmap addresses interoperability regulation through the cross-border mutual recognition agenda — if tokenized securities are recognized across jurisdictions, cross-chain transfers between platforms in different jurisdictions carry less legal risk. The regulatory compliance infrastructure for cross-chain transfers must maintain audit trails that satisfy regulators in both the originating and destination jurisdictions.
Interoperability Economics
The economic case for interoperability investment is driven by the cost of fragmentation. Currently, institutional participants in tokenized markets must maintain connectivity with multiple platforms — each requiring separate onboarding, technology integration, compliance configuration, and operational support. For a global bank like JPMorgan or HSBC that participates in tokenized bond issuance, tokenized repo, and digital custody across multiple platforms, the annual technology cost of multi-platform integration can exceed $10 million.
Universal interoperability — through Canton Network, SWIFT, or a combination — would reduce this cost by providing a single integration point that connects to all platforms. The cost analysis for institutional tokenization programs should include interoperability costs as a significant line item, particularly during the current fragmented market phase.
DTCC’s approach to interoperability — connecting tokenized collateral management with both blockchain-based and traditional settlement systems — provides a model for institutional interoperability that prioritizes backward compatibility with existing infrastructure while enabling forward-looking blockchain integration.
According to BIS research, interoperability is the “most critical infrastructure challenge” for institutional tokenization, ahead of smart contract risk, custody expansion, and regulatory harmonization. The tokenized bond market forecast projects that functional interoperability between major institutional platforms is a prerequisite for the base case scenario ($50-100B by 2030), with the timeline for achieving production-grade interoperability estimated at 2027-2028.
Fnality International and Wholesale Payment Interoperability
Fnality International — a consortium of 15 global banks including Goldman Sachs, BNP Paribas, Barclays, UBS, and Nasdaq — is developing regulated wholesale payment systems on distributed ledger technology. Fnality’s Utility Settlement Coin (USC) concept creates tokenized central bank money representations across five currencies (USD, EUR, GBP, JPY, CAD) for payment-versus-payment (PvP) and delivery-versus-payment (DvP) settlement of tokenized assets. Fnality received regulatory approval from the Bank of England in 2023 to operate as a systemic payment system, making it the first DLT-based payment infrastructure recognized as systemically important.
For cross-chain interoperability, Fnality addresses the cash leg challenge. While Canton Network and CCIP handle security token interoperability, Fnality provides the multi-currency payment infrastructure that enables atomic DvP across blockchains and jurisdictions. A tokenized bond sold by a European investor to an Asian buyer could settle with the security transferring through Canton and the payment executing through Fnality’s multi-currency USC network — achieving simultaneous cross-border DvP without correspondent banking chains. The DTCC, processing $2.4 quadrillion in annual settlements, has engaged with Fnality on connectivity between traditional CSD-based settlement and DLT-based payment systems. The total RWA tokenization market at $20 billion in TVL (excluding stablecoins) with 630,000+ holders requires this kind of payment infrastructure to scale beyond single-platform deployments to the cross-platform, cross-border transactions that institutional capital markets demand.
HQLAx Collateral Interoperability
HQLAx provides another critical interoperability layer for institutional tokenization, specifically for collateral mobility. The platform enables banks to transfer ownership of high-quality liquid assets (HQLA) across triparty agents (Euroclear, Clearstream, BNY Mellon) without physically moving securities, using Digital Collateral Records on R3 Corda. HQLAx processed EUR 100 billion+ in collateral transfers by late 2025, with participants including Goldman Sachs, JPMorgan, Credit Suisse, BNP Paribas, and Deutsche Boerse. The integration of HQLAx collateral interoperability with Broadridge DLR tokenized repo settlement and DTCC tokenized collateral services creates a multi-layer interoperability stack: Canton Network for application-level connectivity, HQLAx for collateral mobility, Fnality for payment settlement, and SWIFT for messaging orchestration. This layered approach reflects the institutional reality that no single interoperability protocol can address all dimensions of cross-platform tokenized asset operations.
The total RWA tokenization market at $20 billion in TVL (excluding stablecoins) with 630,000+ holders is distributed across multiple platforms — Goldman Sachs GS DAP, HSBC Orion, JPMorgan Kinexys ($700B+ processed), Broadridge DLR ($385 billion daily), and BlackRock BUIDL ($2.01B AUM) — creating the economic imperative for interoperability. Without cross-platform connectivity, these institutional deployments operate as isolated silos, limiting the composability and collateral mobility that tokenization promises. The BIS tokenization blueprint identifies interoperability as the architectural prerequisite for a unified tokenized financial ecosystem, emphasizing that the long-term value of tokenization depends not on individual platform deployments but on the network effects created when platforms connect through shared interoperability infrastructure. DTCC, settling $2.4 quadrillion annually, represents the ultimate interoperability challenge: connecting blockchain-based settlement with the existing post-trade infrastructure that processes the vast majority of global securities transactions. According to IMF analysis, cross-border interoperability for tokenized assets could reduce international settlement costs by 50-80%, generating significant efficiency gains for emerging market participants that currently face the highest cross-border transaction costs.
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