Use Cases

QBridge isn’t theoretical — it solves tangible problems across finance, compliance, and asset interoperability. Below are five use cases where QBridge transforms legacy processes into quantum-secure,

🏛 Tokenized U.S. Treasuries

Example: Ondo, MatrixDock, or Franklin Templeton issuing T-bills on-chain

🔁 Challenge:

• Tokens issued on Ethereum or private L2s

• Secondary market liquidity exists on Solana or other chains

• Jurisdictional compliance (e.g. U.S. investor whitelist) must persist cross-chain

✅ QBridge Enables:

• Seamless transfer of T-bills with legal wrapper metadata

• Enforced whitelist on both origin and destination chain

• Long-term durability via quantum-proof asset security

📎 "T-BILL-43B", jurisdiction: US, maturity: 06/2027, yield: 5.2%

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🏢 Commercial Real Estate Shares

Tokenized building ownership — e.g. in Hong Kong, Tokyo

🔁 Challenge:

• Real estate tokens hold yield rights, occupancy metadata, tenant tags

• Legal rights must survive cross-chain transfers

✅ QBridge Enables:

• Full metadata persistence

• Investor eligibility enforcement (e.g. local vs foreign ownership laws)

• Chain-agnostic real estate liquidity

📎 "RE-UNIT-HK", ownership: 3%, yield-share: 1.7 ETH/yr, restricted: CN investors

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📄 Invoicing & Trade Finance

Cross-border exporters tokenize invoices for liquidity

🔁 Challenge:

• Invoice issued on Polygon or Base

• Needs to be collateralized on Solana DeFi (or vice versa)

• Risk rating + issuer data must travel with invoice

✅ QBridge Enables:

• Enriched token transfer: invoice metadata, terms, ratings

• AI-based counterparty scoring

• Enforced maturity enforcement by receiving protocol

📎 "INV-3021", amount: $75K, due: 60 days, issuer risk: A-

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🌿 Carbon Credits

On-chain credits linked to registries like Verra or Gold Standard

🔁 Challenge:

• Prevent double counting across chain hops

• Maintain retirement status and provenance

✅ QBridge Enables:

• Registry ID and retirement metadata embedded in bridge payload

• zkLedger enforces transparency

• Prevents credit duplication/sale fraud

📎 "CC-VERRA-218", issued: 2022, retired: yes, linked chain: Polygon

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💼 Private Equity & VC Shares

Tokenized SAFE, equity contracts, and fund shares

🔁 Challenge:

• Shares issued on private L2s (for compliance)

• Need to trade on DeFi (public) under strict eligibility constraints

✅ QBridge Enables:

• Uses zkKYC for investor eligibility enforcement

• On-chain proof of accreditation — no user data leak

• Controlled trading zones per region/fund

📎 "SAFE-ALPHA", Series B, lock-up: 6 mo, accredited-only

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🧠 Visual Suggestion: Use Case Cards Grid

Each card:

• Top left: Icon or image (e.g. bank, building, invoice)

• Center: Use case title

• Bottom: Short 3-bullet benefit list

• Expand on click (accordion or modal) to view metadata structure + flowchart