PayPal Is Rebuilding the Payment System: The Future of Global Payments Moving onto Ethereum

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PayPal’s Onchain Shift: From PYUSD to an Ethereum Backend, ENS Integration, and Real Payment Flows

This article is published in its current form and will be updated in two days with the final Daily Crypto Times (DCT) format.

PayPal, used by hundreds of millions of people around the world, is quietly but rapidly transforming into an onchain financial infrastructure company. This shift is not a simple blockchain experiment; it is a structural transition where the core payment backend is being redesigned on top of Ethereum. In particular, the recently announced integration with Ethereum Name Service (ENS) clearly shows PayPal’s intention to extend onchain payments all the way to real user experience. Below, we break down PayPal’s onchain strategy into four stages.

1) Issuing the PYUSD Stablecoin: The Starting Point of the Onchain Strategy

In 2023, PayPal launched PYUSD (PayPal USD), officially kicking off its onchain strategy. PYUSD is issued by Paxos and is a 1:1 USD-backed stablecoin regulated by the New York State Department of Financial Services (NYDFS). It is issued as an ERC-20 token on Ethereum and can be used for direct transfers within PayPal and Venmo.

At this stage, PayPal became an onchain payment network operator with its own settlement token, and PYUSD has since become the core asset for all subsequent onchain payments and settlements.

2) PayPal’s Onchain Payment Infrastructure: Rebuilding the Payment Backend on Ethereum

After issuing PYUSD, PayPal began migrating the core components of its payment backend—settlement, transfers, record-keeping, and address management—onto an Ethereum-based architecture. In other words, PayPal has adopted Ethereum as its global payment and settlement infrastructure.

2-1. The Blockchain PayPal Uses: Ethereum Mainnet

PayPal’s onchain payment infrastructure is built around Ethereum mainnet. PYUSD is an ERC-20 token, ENS is a naming service running on Ethereum, and onchain transfers are processed as Ethereum transactions. Address mapping and verification are also performed by querying Ethereum smart contracts. PayPal is effectively using Ethereum as something close to a payment operating system.

2-2. How Ethereum Is Used as the Payment Backend

Onchain Transfers (Transfer Layer)

When PayPal sends PYUSD, it triggers real transactions on the Ethereum network. PYUSD is transferred from an onchain wallet controlled by PayPal to the recipient’s Ethereum address, and this process is transparently recorded on the blockchain.

Onchain Settlement (Settlement Layer)

In traditional card networks, settlement can take one to three days. PayPal replaces this with Ethereum block finality, which ranges from a few seconds to a few minutes. By settling transactions recorded in its internal ledger on Ethereum, either immediately or in batches, PayPal can significantly reduce the cost and time of global transfers.

Onchain Address Management (Identity Layer)

PayPal maps user accounts to Ethereum addresses and ENS names. This allows PayPal to link KYC-verified accounts with onchain addresses and build a structure where onchain payments and regulatory compliance can coexist.

Onchain Data Queries (Verification Layer)

For its ENS integration, PayPal directly queries the ENS Registry and Resolver smart contracts on Ethereum. Through this, it verifies whether an ENS name actually exists, which address it points to, and how PayPal-related metadata is configured. Ethereum thus serves not only as a payment network but also as a public database that PayPal can read from and write to.

2-3. What It Means to Rebuild the Payment Backend Onchain

The traditional payment backend relied on bank settlement networks, card networks, and PayPal’s internal ledger. In contrast, the onchain backend is built around Ethereum settlement, PYUSD onchain transfers, an ENS-based addressing system, and public blockchain records. PayPal is redesigning the core functions of payments on top of Ethereum, which is less a feature add-on and more a structural transformation of its payment infrastructure.

3) PayPal and ENS Integration: Making Onchain Addressing Human-Friendly

PayPal has integrated with Ethereum Name Service (ENS) so that users can send funds using ENS names like younchan.eth instead of long hexadecimal addresses. This integration simplifies user experience while also involving a backend process where PayPal directly queries and verifies ENS records onchain.

3-1. Linking an ENS Name to a PayPal Account

Users can link their ENS name to their PayPal account. When they do, PayPal queries the ENS Registry and Resolver on Ethereum to retrieve the following information:

  • The owner of the ENS name
  • The configured resolver address
  • The Ethereum address (addr record) that the resolver points to
  • PayPal-related text records (e.g., PayPal account ID, verification status)

Through this process, PayPal registers the ENS name as the user’s onchain ID and ties together the ENS name, the PayPal account, and the Ethereum address into a single identity framework.

3-2. How PayPal Interacts with ENS

ENS is a smart contract–based naming system running on Ethereum mainnet. PayPal uses Ethereum RPC to directly query ENS smart contracts.

  • owner(namehash("younchan.eth")) to check the owner
  • resolver(namehash("younchan.eth")) to get the resolver address
  • addr(namehash("younchan.eth")) to obtain the actual Ethereum address
  • text(namehash("younchan.eth"), "paypal") to read PayPal-related metadata

Based on this information, PayPal verifies whether the ENS name exists, whether it points to a valid address, and whether it is correctly linked to the corresponding PayPal account. In doing so, PayPal can safely connect KYC-verified accounts with onchain addresses and ENS names.

3-3. The Significance of ENS Integration

ENS serves as an onchain user identifier for PayPal. Users can share an ENS name instead of a complex address, and PayPal can reduce address input errors and fraud risk through ENS. As a result, the global remittance experience becomes as simple as entering a phone number or email address, and PayPal’s onchain network naturally extends down to the everyday user level.

4) PayPal Onchain Payment Scenario

Finally, let’s look at how PayPal’s onchain payments actually work in practice, breaking down the flow by clearly distinguishing between the sender and recipient addresses.

4-1. Payment Request Stage

The sender initiates a transfer in the PayPal app. The recipient can provide an ENS name (for example, younchan.eth) or PayPal account information. The user does not need to be aware of the onchain structure; they interact with a familiar interface.

4-2. Address Mapping Stage

PayPal queries ENS to resolve the ENS name into a real Ethereum address. On the sender side, an onchain address linked to a KYC-verified PayPal account is used. At this stage, PayPal maps the sender’s account, the recipient’s ENS name, and the recipient’s Ethereum address.

4-3. Funding Stage

PayPal secures the required funds from the sender’s PayPal balance, linked bank account, card, or existing PYUSD holdings. This process is similar to a traditional PayPal payment, but what follows—settlement onchain—is fundamentally different.

4-4. Onchain Transfer Stage

An onchain wallet controlled by PayPal acts as the sender. From this wallet, PYUSD is transferred to the recipient’s Ethereum address. The transaction is recorded on the Ethereum blockchain and can be inspected via a block explorer if needed.

4-5. Settlement and Receipt Stage

On the sender’s side, settlement is completed when PYUSD is debited from the PayPal onchain wallet. On the recipient’s side, PYUSD arrives at the Ethereum address pointed to by the ENS name. The recipient can check their balance via the PayPal app or an external wallet.

Conclusion

PayPal’s onchain strategy starts with the issuance of PYUSD and extends through the construction of an Ethereum-based payment backend, ENS integration, and the implementation of real onchain payment scenarios. Through this process, PayPal is gradually evolving from a traditional payment company into an operator of onchain financial infrastructure.

Among these steps, ENS integration is a key milestone that elevates user experience to the level of familiar web services, while Ethereum becomes the new foundation for payment and settlement chosen by PayPal.

Younchan Jung
Researcher exploring structural shifts in AI, blockchain, and the on‑chain economy.

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