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10/23/2024

Solana Leads the Future of Blockchain Payments and On-Chain Finance

The PayFi concept was introduced by Lily Liu, President of the Solana Foundation, in her keynote address "The Rise of PayFi: Realizing the Vision of Crypto" at the 7th EthCC conference. Key PayFi concepts: * Emphasis on "instant settlement," particularly valuable in speculative trading. * Enables a new "Buy Now, Earn Later" model, opening new avenues for creator monetization, invoice financing, and payment risk management. * The core advantage of the PayFi vision: It

Solana Leads the Future of Blockchain Payments and On-Chain Finance

The PayFi concept was introduced by Lily Liu, President of the Solana Foundation, in her keynote address "The Rise of PayFi: Realizing the Vision of Crypto" at the 7th EthCC conference.

Key PayFi Concepts:

  • Emphasis on "instant settlement," particularly valuable in speculative trading.
  • Enables a new "Buy Now, Earn Later" model, opening new avenues for creator monetization, invoice financing, and payment risk management.
  • The core advantage of the PayFi vision: It leverages Solana's high performance to bridge the gap between the real world and the blockchain. That said, regulation and scalability remain the biggest hurdles to widespread adoption.

Lily Liu offers a concise explanation of PayFi: "PayFi is about creating new financial markets around the time value of money. On-chain finance can enable new financial primitives and product experiences that are not possible in traditional finance or even Web2 finance."

I. What Is PayFi?

PayFi, short for Payment Finance, is an innovative new model that merges payments and finance. It was introduced by Lily Liu, President of the Solana Foundation, at the EthCC conference in July 2024. Its core focus is on "instant settlement" to boost the efficiency of speculative transactions and various financial activities. As defined by Lily Liu, PayFi is a programmable financial architecture that enables new financial innovations at the payments layer while processing payment transactions automatically. Summary of the content via Elponcho:

The PayFi Vision:

"Build a programmable money system within an open financial system, empowering users with economic sovereignty and self-custody."

PayFi Applications:

New technology creates new markets. PayFi supports a "Buy Now, Earn Later" model — leveraging on-chain finance and instant settlement capabilities to let on-chain yield immediately cover real-time spending needs. For example, a user could deposit $50 on-chain to earn interest. That interest and yield could then be used to pay for a "free" cup of coffee.

Beyond that, PayFi can support milestone-based creator monetization (e.g., a YouTube creator receiving ad revenue incrementally as they hit 1 million views), as well as invoice financing, payment processing risk management, and the development of global private credit pools on the Solana chain. Lily Liu believes PayFi will surpass DeFi in the future and lead the next wave of financial innovation.

Solana and PayFi:

Lily Liu believes Solana stands out in the blockchain world thanks to its high performance, consistently demonstrating fast transaction speeds and low costs. It holds advantages in capital liquidity and talent. Clearly, Solana is a strong candidate to bring the PayFi vision to life.

Three Key Factors for Blockchain Success:

Lily Liu identifies three key factors for blockchain success: fast transactions and low costs, a large user base, and a strong developer community. She states that Solana is currently the only ecosystem that fully possesses all three.

The Future of PayFi and Solana:

In her talk, Lily Liu shared a range of financial application scenarios built on Solana, including supply chain finance, credit lending, credit cards, corporate credit, interbank repo markets, and insurance markets. These applications demonstrate the enormous potential of Solana combined with PayFi to revolutionize traditional financial systems in the future.

In the article "Understanding PayFi: The Next Narrative for Solana," Lily Liu explains that the heart of PayFi lies in the time value of money, illustrated through three key examples:

  • Buy Now, Earn Later: While most people are familiar with "Buy Now, Pay Later," "Buy Now, Earn Later" is nearly the inverse. The former optimizes cash flow by paying in installments and incurring some interest cost, while the latter involves investing funds in DeFi products, earning yield through lending, and then using that yield to pay for consumption. This sacrifices cash flow but avoids drawing down principal.
  • Creator Monetization: Many creators face cash flow challenges during the content creation process. Creating content takes time and money, while revenue is typically delayed. This gap can lead to financial shortfalls that affect the pace of content production. Under Lily Liu's vision, PayFi can help creators accelerate monetization. For example, if a video is projected to earn $10,000 but takes a month to collect, the creator could use PayFi to immediately receive $9,000 in cash, realizing income early. While this sacrifices some earnings, it improves cash flow.
  • Accounts Receivable: Accounts receivable is a common financial relationship between businesses and customers, representing amounts owed to a business by its clients. The existence of accounts receivable can sometimes leave businesses facing cash flow shortfalls. To address this, businesses typically pledge receivables to finance companies or sell them at a discount to get immediate cash and maintain stable cash flow. PayFi aims to further simplify and optimize this process. By accelerating settlement via blockchain and improving capital turnover efficiency, it lowers the barrier for more businesses to access this supply chain finance tool and accelerates capital flow.

II. How PayFi Integrates with DeFi: RWA as the Bridge to a New Narrative

The origins of blockchain technology can be traced back to Satoshi Nakamoto's landmark white paper "Bitcoin: A Peer-to-Peer Electronic Cash System," published in 2008. This laid the foundation for a new era of decentralized payments — not only creating new forms of currency but fundamentally transforming the payment systems deeply embedded in traditional finance. PayFi uses blockchain technology and smart contracts, leveraging digital assets and decentralized finance (DeFi) tools to manage capital flows. Its core philosophy is to optimize the time value of money and shorten settlement times through decentralized technology. Key operating principles include:

  • Time Value of Money (TVM): PayFi emphasizes improving the time value of money, helping users maximize capital efficiency. For instance, users can deposit funds into lending platforms and use the generated interest to cover everyday expenses. As an example: when buying a $5 cup of coffee, a user could lock $50 in a fund. Once the accrued interest is sufficient to cover the cost of the coffee, the principal remains untouched.
  • Automated Smart Contracts: Smart contracts are the backbone of PayFi. They can automatically execute complex financial operations based on predefined conditions, minimizing intermediary involvement, accelerating transactions, and reducing costs.
  • Real-World Asset (RWA) Tokenization: PayFi tokenizes real-world assets such as real estate and accounts receivable, facilitating cross-border payments and capital flows. This not only improves liquidity for physical assets but also provides a new platform for global transactions.
  • As the crypto ecosystem demands assets with sustainable value, RWAs have naturally emerged as a popular choice. Over the past two years, tokenized treasury bonds offering 4–5% yields have become the go-to option for on-chain capital, rapidly reaching a total value of $2 billion. With inflation and central bank rate-cut signals emerging, treasury yields have declined, pushing capital to seek other high-yield, low-risk assets. This creates an opportunity for PayFi to rise within the RWA space.

Typical PayFi use cases may include:

  • Cross-Border Payment Finance: Arf transforms traditional cross-border payments by providing on-chain liquidity solutions for financial institutions. It supports 24/7 instant settlement, transparency, and low-cost payments based on USDC, eliminating the need for pre-funded accounts globally. Cross-border payment finance delivers high capital efficiency and scalability.
  • Digital Asset-Backed Corporate Cards: Rain provides Web3 teams with USDC-backed corporate card settlement liquidity. Companies commit funds to a vault with a preset credit limit. At the end of each billing cycle, assets are automatically liquidated on-chain to settle outstanding corporate card balances, reshaping expense management.
  • Trade Finance: BSOS integrates Enterprise Resource Planning (ERP) platforms with on-chain liquidity to create real-world assets (RWAs) within supply chains. It offers short-term financing options to meet businesses' financial needs.

Real-World Assets (RWA) applications may include:

  • Instant RWA Settlement: Even highly liquid assets like tokenized treasury bonds or funds typically require 2–4 days to settle because the underlying assets need to be liquidated before redemption. On-chain liquidity pools enable 24/7 real-time subscription and redemption of these assets, ensuring fast and transparent transactions.
  • DePIN Finance: With the rapid expansion of the DePIN ecosystem, many projects are built around the concept of sharing large-scale infrastructure construction costs and redistributing future value. For example, TLay provides critical trusted infrastructure to accelerate DePIN adoption. Peaq customizes L1 for DePIN and provides functionality enabling machines to transact efficiently with each other or interact with humans, supporting the growth of the machine economy.

Meanwhile, the rise of stablecoins has become the bridge connecting fiat currency to blockchain, driving the first wave of real-world payment use cases. Since 2014, stablecoins have experienced exponential growth, reflecting surging demand for blockchain innovation in the payments space. Currently, stablecoins support approximately $20 billion in organic payments annually — approaching Visa's annual payment processing volume. While the crypto ecosystem continues to address challenges such as poor user experience, significant latency, high transaction costs, and compliance in order to unlock the full potential of stablecoins, there remains room for further growth.

Looking back at the history of payment systems, financial mechanisms have played a critical role in driving their advancement. For example:

  • Credit Cards: Contribute $1.6 trillion annually to merchant payments, demonstrating how finance drives widespread adoption and practical utility.
  • Trade Finance: Provides $10 trillion in annual financial support for B2B payments, underscoring the pivotal role of finance in global commerce.
  • Cross-Border Payments: Supports global remittances and payments with $4 trillion in pre-funded capital. Today, 1 in 6 households worldwide relies on remittances for their livelihood.
  • Without payment finance, global liquidity would be severely constrained. Similarly, without financial mechanisms, the utility and adoption of internet-native currencies would be hindered. PayFi was born to address these limitations. Lily Liu, President of the Solana Foundation, introduced the concept of "PayFi" and articulated its vision: "PayFi is about creating new financial markets around the time value of money. On-chain finance can enable new financial primitives and product experiences that are not possible in traditional finance or even Web2 finance."

III. Thoughts on PayFi

Solana has consistently led the charge in driving the crypto market forward with a variety of narratives, continuously stimulating speculative market activity. The biggest advantage of this new narrative — PayFi — is that it returns to blockchain's inherent potential to disrupt traditional finance. It leverages decentralized and secure properties to reduce fraud risk and enhance transaction integrity. It also eliminates the intermediary institutions involved in traditional financial payment processing, moving the entire transaction process on-chain and lowering the barrier for users to participate in finance. From a narrative standpoint, PayFi serves as a bridge between RWA and DeFi, connecting them to the real world.

Although PayFi has the potential to enable large-scale blockchain applications in the future, it still faces several challenges that could limit widespread adoption. First is regulation. Global financial institutions have yet to fully understand or establish regulatory frameworks for blockchain operations. The first hurdle to connecting with the real world is legal legitimacy. Another obstacle is scalability. Blockchain networks can experience congestion during peak periods, affecting transaction speeds and costs. Synchronizing block speeds across different chains is a challenge. The market may also lack acceptance. Currently, businesses and users have relatively low acceptance of new technologies — mentioning blockchain still encounters hesitation and resistance. For blockchain to fully penetrate real-world channels, it must continuously optimize accessibility across more regions, and its breakout effect beyond its own circle needs ongoing improvement.