The rise of digital finance has brought two transformative concepts to the forefront: global stablecoins and central bank digital currencies (CBDCs). These innovations are reshaping how we think about money, payments, and financial infrastructure. In this article, we explore the key differences between account-based and token-based financial systems, analyze major projects like Libra, and examine the design and implications of China’s Digital Currency/Electronic Payment (DC/EP) system.
The Emergence of Global Stablecoins
In October 2025, the G7’s stablecoin working group introduced the term global stablecoin, primarily in response to Facebook’s proposed Libra project. But the idea of digital money isn’t new. It traces back to Satoshi Nakamoto’s 2008 Bitcoin whitepaper, which envisioned a peer-to-peer electronic cash system that operates without intermediaries.
Bitcoin solved the double-spending problem using proof-of-work, cryptographic hashing, and digital signatures. However, its high price volatility prevents it from functioning as reliable everyday money. Today, Bitcoin is more commonly seen as “digital gold” — a store of value rather than a medium of exchange.
To address volatility, blockchain innovators have experimented with various stablecoin models:
- Expanding usage: Theoretically controversial and practically challenging due to the chicken-and-egg problem.
- Increasing block size: As seen with Bitcoin Cash, this improves scalability but not price stability.
- Algorithmic supply adjustments: Complex algorithms struggle to match unpredictable demand shifts.
- Collateralization with risky assets: Works in limited contexts but lacks scalability.
- Fiat-backed reserves: Pioneered by Tether (USDT) and its predecessor Realcoin, this model has proven effective and widely adopted.
Fiat-collateralized stablecoins use a dual approach:
- Leverage blockchain for settlement efficiency, programmability, decentralization, and openness.
- Anchor token value to real-world assets via economic mechanisms.
This framework enables stablecoins to function as practical digital money — a concept now being adopted by both private firms and central banks.
👉 Discover how digital currencies are transforming global finance today.
Financial Infrastructure: Account Paradigm vs Token Paradigm
Modern financial systems operate under two paradigms: account-based and token-based.
The Account-Based System
Traditional banking relies on a two-tier structure:
- Individuals and businesses hold deposit accounts at commercial banks.
- Commercial banks maintain reserve accounts at the central bank.
Money exists as liabilities across this system:
- Cash = central bank liability to the public.
- Reserves = central bank liability to banks.
- Deposits = bank liability to customers.
Transactions within this system require trusted intermediaries:
- Domestic transfers: Adjust balances within or across banks via payment systems.
- Cross-border payments: Involve correspondent banking networks, where banks hold nostro (our account abroad) and vostro (their account here) accounts.
Despite popular belief, SWIFT is not a payment system — it handles messaging. Actual fund movement occurs through national real-time gross settlement (RTGS) systems like Fedwire (USD), CHIPS (USD), or CIPS (CNY).
Costs in cross-border payments stem largely from:
- Locked liquidity in correspondent accounts (34%).
- Treasury operations (27%).
- FX processing (15%).
- Compliance (13%).
Improving speed and reducing cost requires rethinking the underlying infrastructure.
The Token-Based System
In contrast, blockchain introduces a token paradigm:
- Tokens are programmable digital units representing value.
- Ownership is secured via asymmetric cryptography.
- Transactions occur directly between addresses without intermediaries.
- Consensus algorithms prevent double-spending.
- Settlement is final and instantaneous — “transaction equals settlement.”
Tokens themselves have no intrinsic value. Their worth comes from being pegged to real-world assets through regulated mechanisms. This process — known as asset tokenization — requires three core rules:
- Issuance: 1:1 backing by reserve assets.
- Redemption: Guaranteed two-way exchange between token and asset.
- Transparency: Regular third-party audits to verify reserves.
When these rules are followed, market arbitrage keeps token prices aligned with their underlying value. Violations weaken this mechanism and risk de-pegging.
While account systems prioritize identity verification (KYC), token systems emphasize accessibility and pseudonymity. Every user can generate a public-private key pair and interact on-chain. Balances and transactions are public; identities are not — offering privacy benefits but posing challenges for AML/CFT compliance.
Libra: A Private Sector Vision for Digital Money
Libra (now Diem) was proposed as a global stablecoin backed by a basket of fiat currencies — USD (50%), EUR (18%), JPY (14%), GBP (11%), SGD (7%). Its goal: low volatility, broad acceptance, and interoperability.
Key Design Features
- Reserve Structure: Fully backed by short-term government bonds and bank deposits held by regulated custodians.
- Stability Mechanism: Authorized dealers trade directly with the reserve, ensuring price stability.
- Technology: Initially built on a permissioned blockchain (consortium chain) with up to 1,000 transactions per second.
- Governance: Managed by the Libra Association — a Switzerland-based nonprofit with equal voting rights for members.
Monetary Implications
Libra resembles the IMF’s Special Drawing Right (SDR) — a supranational currency. It does not create new money; issuance scales only with reserve growth.
Even if Libra were used in lending, any resulting deposits would exist in traditional accounts — not as Libra tokens — so no significant monetary expansion would occur unless those deposits circulated widely.
Libra offers potential benefits:
- Financial inclusion via simple mobile wallets.
- Low-cost global transactions.
- Seamless integration into digital platforms.
But key limitations remain:
- No native pricing ecosystem — users must convert Libra to local currency for purchases.
- Limited scalability under current consortium chain design.
- Governance transparency concerns.
👉 See how next-generation payment networks are redefining money movement.
Risks and Regulatory Challenges
Market and Liquidity Risk
If reserves are invested in illiquid or risky assets, sudden redemptions could force fire sales, threatening solvency. Unlike banks, Libra has no lender of last resort.
Custodial Risk
Though held by investment-grade custodians, these institutions aren’t risk-free. If central banks become custodians, Libra could effectively become a “synthetic CBDC.”
Cross-Border Capital Flows
Libra enables frictionless international transfers, potentially destabilizing capital controls in emerging economies — especially those prone to dollarization during crises.
Regulatory Uncertainty
Key questions remain:
- Is Libra a security under U.S. law (Howey Test)?
- Could it fall under EU investment fund regulations?
- How will data privacy and tax compliance be enforced?
Regulators worldwide are scrutinizing such projects for KYC, AML, CFT, and consumer protection risks.
People's Bank of China DC/EP: A Central Bank Response
China’s Digital Currency/Electronic Payment (DC/EP) represents a state-led alternative to private stablecoins.
Core Design Principles
- M0 Replacement: Digital yuan replaces physical cash; no interest paid.
- Two-Tier Operation: Central bank issues to commercial banks; banks distribute to the public.
- Cryptographic Form: Each unit is an encrypted string with unique ID, amount, owner, and central bank signature.
- Centralized Ledger: Uses a UTXO-like model managed by the central bank — avoiding blockchain performance limits.
- Controllable Anonymity: Transactions visible only to the central bank unless illegal activity is suspected.
- Programmability: Supports smart contracts for policy applications like targeted stimulus.
- System Agnosticism: Works across devices and channels — even offline.
Unlike Libra, DC/EP uses no public blockchain. Instead, it combines token-like usability with centralized control — achieving efficiency without sacrificing oversight.
Impact on Payments
DC/EP mirrors post-"break-direct-link" third-party payments in structure but differs critically:
| Feature | Third-Party Payments | DC/EP |
|---|---|---|
| Model | Account-coupled | Token-based |
| Anonymity | None | Controllable |
| Interoperability | Platform-specific | Universal legal tender |
| Policy Utility | Limited | High (e.g., macroprudential tools) |
DC/EP strengthens monetary policy enforcement, anti-money laundering efforts, and financial inclusion.
DC/EP and RMB Internationalization
While CIPS already supports cross-border RMB payments via bank accounts, DC/EP lowers entry barriers:
- Foreign users need only a wallet — not a Chinese bank account.
- Transactions are inherently cross-border.
- Enables faster adoption in trade, investment, and remittances.
However, full RMB internationalization requires more than technology:
- Free convertibility
- Exchange rate stability
- Deep financial markets
- Strong legal protections
Digital currency facilitates international use but doesn’t guarantee it.
Frequently Asked Questions
Q: What is the difference between a stablecoin and a CBDC?
A: Stablecoins are typically issued by private entities and pegged to assets like fiat currency. CBDCs are digital forms of sovereign currency issued by central banks.
Q: Can stablecoins replace traditional money?
A: Only if they achieve widespread adoption, regulatory compliance, and stable valuation — significant hurdles remain.
Q: Is blockchain necessary for digital currencies?
A: Not always. While Libra uses a consortium chain, China’s DC/EP relies on a centralized ledger — showing that token-like features can exist without decentralized consensus.
Q: How does DC/EP ensure privacy?
A: Through “controllable anonymity” — users’ identities are hidden from merchants and banks but accessible to authorities when required by law.
Q: Will DC/EP disrupt commercial banks?
A: Unlikely. It operates within the existing two-tier system, where banks remain crucial for distribution and customer service.
Q: Could Libra threaten national monetary sovereignty?
A: Yes — especially in countries with weak currencies or unstable financial systems, where Libra could enable rapid dollarization-like shifts.
👉 Explore the future of digital money and stay ahead of the curve.