What is G-Series Stablecoin 2.0?

G-Series Stablecoin 2.0 (“G-Series”) is a family of FX-pegged stablecoins issued on top of the WANNA protocol.

Each G-Series token is designed to track the value of a specific fiat currency (e.g., KRW, JPY, THB, VND) while being collateralized primarily by USD-denominated assets such as USDT, USDC, and GUSD.

Examples:

• GKRW – Korean won–pegged stablecoin

• GJPY – Japanese yen–pegged stablecoin

• GTHB – Thai baht–pegged stablecoin

• GVND – Vietnamese dong–pegged stablecoin

In the initial phase, G-Series operates as a “Stablecoin 2.0” layer:

• backed by over-collateralized USD stablecoin reserves via GUSD

• providing multi-currency exposure and settlement for users, services, and institutions

Over time, as regulations mature, G-Series is designed to transition toward hybrid collateral structures, incorporating regulated local stablecoins and bank-style instruments where feasible.

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1. Design Goals of G-Series

1) Multi-Currency Access on Top of USD Liquidity

Enable users to hold, send, and settle in local currency units without leaving the on-chain USD ecosystem.

• Mechanism: USD liquidity and risk are managed centrally at the GUSD layer, while G-Series exposes users to FX-denominated balances.

2) Stability and Risk-Aware FX Pegging

Maintain a stable link to the target fiat currency through:

• robust collateralization via GUSD and underlying USD stablecoins

• FX-aware risk parameters (collateral ratios, buffers, haircuts)

• conservative guardrails that prioritize solvency and peg resilience

3) Interoperable Settlement Layer

Serve as a neutral, shared settlement layer across:

• exchanges and DeFi protocols

• payment and remittance services

• RWA and brokerage platforms

G-Series is intended to function as open infrastructure, not a closed ecosystem token.

4) Regulatory Migration Path

Start with a crypto-native structure (over-collateralized USD stablecoins) and gradually integrate:

• regulated local stablecoins

• trust and custody structures

• licensed FX/payment providers

as regulatory frameworks become clearer in each jurisdiction.

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2. Peg Mechanism and Collateral Structure

1) FX-Linked Pegging

Each G-Series stablecoin is soft-pegged to its target fiat currency through an FX-aware collateral model:

• Backing: G-Series tokens are backed by GUSD (and underlying USD stablecoins).

• Data: FX rates are obtained from multi-source oracles.

• Constraints: Minting and burning are governed by FX-linked guardrails, including:

  • minimum collateral ratios

  • safety margins σ\sigmaσ

  • FX-sensitive haircuts

  • liquidity coverage indicators (FX-LCR)

2) Two-Layer Collateral System via GUSD

• Base Layer (GUSD) Backed by an over-collateralized pool of USDT, USDC, and selected RWAs.

• G-Series Layer GKRW, GJPY, GTHB, GVND, etc. issued on top of GUSD with FX-aware parameters.

Benefit: This structure allows centralized management of USD risk at the GUSD layer, while distributing multi-currency issuance at the G-Series layer.

3) Future Hybrid Collateral

In the medium to long term, a portion of G-Series collateral may shift to include:

• regulated local stablecoins

• tokenized deposits and similar instruments

subject to strict legal, transparency, and risk criteria.

This aligns G-Series more closely with local financial systems while preserving the benefit of global USD liquidity.

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3. Minting and Burning of G-Series

At the protocol level, G-Series minting and burning are designed to be:

• open and programmable

• protected by on-chain compliance oracles and quantitative risk guardrails

1) Minting Flow (High Level)

• Input: The user (or an integrated service) supplies GUSD (or other supported inputs routed via GUSD) to the protocol.

• Validation:

  • checks the address against a sanctions/compliance oracle

  • references USD / target-fiat FX rates

  • applies haircuts and buffers

  • verifies that:

    • collateral ratios

    • FX-LCR remain within healthy ranges

• Output: If all checks pass, the requested G-Series tokens are minted. If risk limits are breached or the address is flagged, the transaction reverts.

2) Burning Flow

• Input: The user sends G-Series tokens to the protocol and calls the burn/redeem function.

• Process: The G-Series tokens are burned, reducing total supply.

• Output: The user receives the corresponding amount of GUSD, based on current FX rates and buffers.

Users can then:

• hold GUSD

• further redeem GUSD into USDT/USDC through the GUSD redemption process

Compliance and sanctions checks apply throughout this flow.

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4. Use Cases of G-Series

1) Multi-Currency Treasury and Settlement

Web3 projects and exchanges can:

• manage treasuries

• settle transactions

in local currency units (e.g., GKRW, GJPY) while relying on deep USD-backed collateral under the hood.

2) On-Chain FX and Hedging

Traders and funds can adjust FX exposures on-chain by swapping between GUSD and various G-Series assets, without the friction of traditional off-chain FX accounts or bank products.

3) Payments and In-App Pricing

Wallets and apps can:

• denominate balances and prices in local currencies via G-Series,

• settle internally in GUSD/USDT/USDC

• connect to off-chain rails through partners

4) Brokerage and RWA Integration

As the ecosystem expands, G-Series can be used as:

• collateral for leveraged positions

• settlement assets for RWA trades and brokerage flows

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5. Relationship Summary

• GUSD: the base USD stablecoin and reserve core.

• G-Series: the FX-pegged expansion layer built on that reserve.

• Flow: $\text{Local Currency} \leftrightarrow \text{G-Series} \leftrightarrow \text{GUSD} \leftrightarrow \text{USDT/USDC}$

leverage the depth of global USD liquidity, while exposing users to a regulation-aware, multi-currency stablecoin layer via G-Series Stablecoin 2.0.