Token Utility — $QB

The $QB token powers the full QBridge ecosystem. Unlike many governance-only tokens, $QB is deeply embedded into protocol function, access, and security.

🔁 Core Utilities of $QB

Utility Area	Description
🔐 Access Control	Required for issuers to unlock compliance, metadata, and transport modules
📡 Messaging Fees	Used as the gas-equivalent for bridging and metadata relay operations
🎓 Governance	Enables voting on compliance logic, chain expansion, protocol upgrades
💸 Staking	Secures bridge nodes, enables role-based rewards + slashing

---

⚙️ 1. Cross-Chain Fees

Each cross-chain RWA transport consumes $QB in proportion to:

• Payload size

• Risk score (dynamic)

• Oracle queries

• zkLedger write bandwidth

📎 Example: Transferring a tokenized bond with identity + metadata + real-time price may cost ~5–20 $QB depending on region and complexity.

---

🧑‍⚖️ 2. Governance Participation

$QB holders can propose or vote on:

• ✅ Which chains to support

• ✅ Which registries to integrate (Verra, GLEIF, etc.)

• ✅ zkLedger audit protocol parameters

• ✅ Risk engine model updates (AI training inputs)

🧠 Optional: Governance can be gated by KYC proof to align with compliant DAO frameworks.

---

💰 3. Staking & Validator Incentives

Bridge nodes that validate transfers and enforce policy checkpoints stake $QB to:

• Prove skin in the game

• Earn protocol rewards (from bridging activity)

• Face slashing on misconduct / offline behavior

📊 Rewards Pool: 40% of bridge fees redistributed to stakers (protocol-adjustable)

---

🧠 Visual Suggestion: $QB Lifecycle Flow

plaintextCopyEdit            +------------------------+
            |    RWA Issuer Sends    |
            |    Cross-Chain Token   |
            +-----------+------------+
                        |
                Consumes $QB Fee
                        ↓
            +------------------------+
            | Bridge Nodes Validate  |
            | & Stake $QB            |
            +-----------+------------+
                        ↓
            +------------------------+
            | zkLedger Logs Transfer |
            | + Reward Distribution  |
            +------------------------+

---

🧠 Utility Access Modes

Actor	Must Hold $QB?	Reason
RWA Issuer	✅	Unlock bridge + compliance modules
dApp Integrator	❌ (Optional)	Uses APIs + metadata feeds
Bridge Validator	✅	Staking required to secure events
Auditor	❌	Read access to zkLedger
DAO Voter	✅	Governance rights proportional