Excited to introduce one of our PayChain Open Beta partner, @paywallethq. This will be the first web wallet for #PCI on both Hyperledger Fabric and EVM-based chains!

New $PCI Merchant: emart24! We are thrilled to announce that emart24 will be joining the Paycoin merchant network. Users will be able to pay with $BTC, $ETH and $PCI in any emart24 convenient stores in Korea. Emart24 official site: emart24.co.kr/ 🏪

🟦 FAQ Series – PayChain: Expanding Global Payment Infrastructure One of the biggest changes in the Whitepaper V10 update is the introduction of #PayChain. #PayChain is an EVM-based mainnet designed to scale PayProtocol's existing Hyperledger-based payment infrastructure to a global level, serving as the core pillar for overcoming structural limitations in payments and settlements and evolving into an open payment network. While PayProtocol has focused on regulatory friendliness and stability centered on the domestic payment market, will serve as a new expansion layer interconnected with global services, stablecoins, and Web3 payments. This FAQ addresses the most frequently asked questions about #PayChain's structure, role, technical features, and future direction. Q1. Why build PayChain when PayProtocol already exists? What's the difference between the two chains? PayProtocol chose a dual-layer structure to secure both stability and scalability simultaneously. The #Hyperledger-based L1 mainnet safely records payment data and serves as a 'settlement network' ensuring legal finality and accounting transparency. It's similar to how card payment systems confirm transaction records and reconcile data with financial institutions. Hyperledger L1 already operates stably as a domestic payment and remittance infrastructure, providing a regulatory-friendly environment that can be verified at any time. However, the permissioned network structure has limitations in global expansion and integration with various blockchain ecosystems. Users want seamless payments regardless of which stablecoin they use, and businesses want to manage transactions scattered across multiple chains in a single system. #PayChain is being built as an EVM-based expansion network to meet these needs. It directly connects with major blockchains like @ethereum, @base, @avax, and @trondao, synchronizing issuance, burn, and settlement records into a single global unified ledger. Core data is recorded on the PayProtocol mainnet to ensure legal credibility. Q2. What changes does PayChain bring to existing merchants and users? With #PayChain, merchants and users can enjoy a simple and integrated payment experience without being aware of blockchain technology's complexity. From a user perspective, they receive the same payment experience regardless of the type of stablecoin they hold. For example, whether using Tron-based $USDT, Ethereum-based $USDC, or KRW stablecoins, #PayChain processes them all identically. Notably, users don't need to hold separate native tokens (like $ETH) as gas fees are automatically paid with stablecoins or $PCI, allowing even beginners to easily start digital asset payments. From a merchant perspective, they can support stablecoin payments from all major blockchains with just one #PayChain integration. There's no need to manage separate wallets for each chain or build settlement processes, and it directly connects with existing accounting systems, tax invoices, and ERP, simplifying business workflows. Additionally, without tracking transaction records scattered across multiple chains, merchants can view all payment and settlement records in real-time on #PayChain's integrated dashboard. It provides the same convenience as managing payments from multiple card companies through a single PG system. Q3. Will the Hyperledger mainnet be discontinued? No. The Hyperledger mainnet will be maintained for the time being and continue to operate as the core layer responsible for legal finality and settlement stability. PayProtocol has been operating actual services on Hyperledger for years, verifying payment reliability and stability. This stability will be maintained even after #PayChain's introduction. #PayChain is not replacing the existing infrastructure but being added for global expansion and Web3 payment integration. Initially, a dual structure will operate with the Hyperledger mainnet handling legal finality and regulatory reporting, while #PayChain manages multi-chain payment processing and global settlement. In the long term, as #PayChain matures, the center of payment and settlement data will be gradually integrated into #PayChain, and this process will proceed carefully with service stability as the top priority. Q4. Can services other than payments be built on PayChain? Yes, it's possible. #PayChain is EVM-compatible, allowing general smart contract development. However, #PayChain is designed as a lightweight structure specialized in payments and settlements, eliminating unnecessary complexity and optimized for fast, low-cost payment processing. Rather than providing all features like general-purpose blockchains, it focuses on natively providing core modules needed for payment infrastructure (gas abstraction, compliance hooks, depeg defense, etc.). Various payment-linked services can be built on this structure: - #P2F (Pay-to-Finance) - Payment data-based micro-lending systems - On-chain rewards and loyalty programs - Subscription payment automation systems - Cross-border remittance and exchange services - Creator support platforms Q5. How is the PayChain ecosystem structured and what are the requirements to participate? #PayChain is a participatory payment infrastructure where all participants perform roles based on $PCI and receive rewards. Main participants are divided into validators and bridge operators, each staking $PCI according to their responsibilities and contributing to network stability. Validators verify that all transactions on #PayChain are accurate and unaltered. Like a bank's audit team, they ensure the integrity of transaction records. Bridge operators safely transmit asset movements and settlement data between major blockchains like Ethereum, Base, Avalanche, Tron and #PayChain. It's similar to international remittance systems that mediate fund transfers between banks in different countries. #PayChain participants are required to stake $PCI, which serves as an economic guarantee that they won't harm the network. Through this structure, #PayChain secures the high level of reliability needed for payment infrastructure even in a decentralized environment. General users and merchants can conveniently use payment services without technical burden on the stable environment created by these infrastructure participants. Q6. Are you considering introducing native $USDC or $USDT on PayChain? #PayChain is fundamentally designed as a stablecoin-centric payment chain. To ensure payment stability and practical usability, stablecoins pegged to fiat currency values are used as core payment assets. We are currently in discussions with major global stablecoin issuers like $USDC and $USDT, aiming to natively support them on #PayChain. Q7. When will PayChain be launched? #PayChain is preparing for testnet launch in the first half of 2026 and will conduct real transaction environment verification with key payment partners and validators. 📌 Useful links: Whitepaper V10👉payprotocol.io/white-paper

🟦 FAQ Series – Paycoin (PCI): The Core Utility Token of the PayProtocol Ecosystem In line with last week’s release of our Whitepaper V10, we’re kicking off the FAQ series. The first topic that we are going cover will be the core utility token of the #PayProtocol Ecosystem - $PCI (Paycoin) $PCI is evolving beyond a simple payment token – it is the native asset of #PayChain and a core tool for its governance participation. In the lastest version of our Whitepaper, we have redefined the value-circulation structure, burn mechanisms, and transparent distribution model for $PCI. In this content, we’ll answer the most frequently asked questions around $PCI’s role and structural changes. Q1. How has the value of $PCI been enhanced through the latest Whitepaper? The V10 update fundamentally strengthens $PCI’s demand generation and value circulation models. 1. Utility Expansion via PayChain: PayChain’s gas system is designed around $PCI. Even when users pay fees in stablecoins, they’re converted to $PCI for sequencer rewards and burns. In addition, sequencers and bridge operators must stake $PCI as collateral, directly creating real transactional demand. 2. Burn Mechanism: More network activity means more $PCI burned. This deflationary design strengthens long-term value through a self-reinforcing cycle. 3. Restructured Distribution: All 844M foundation-held $PCI will be locked, with only 3.4 % (28.8 M) of these being unlocked over 2 years — minimizing extra supply. 4. Governance Participation: Stake $PCI to join on-chain governance and vote on key ecosystem parameters. 5. Payment & Settlement Incentives: Ongoing $PCI-based payment incentives sustain real utility and adoption. Q2. What is the relationship between $PCI and PayChain? PayChain is an EVM-based blockchain built entirely around $PCI. All gas fees on PayChain are ultimately settled in $PCI — used for sequencer rewards and token burns. Sequencer staking, bridge collateral, governance voting, and incentive distribution all depend on $PCI, making it the core asset that powers the PayChain ecosystem. Q3. What is wPCI, and how does it differ from Hyperledger $PCI and PayChain $PCI? Both represent the same economic value, but they operate in different environments and serve different purposes. The Hyperledger $PCI supports domestic payments and remittances, already used in real services through the PayCoin App — ensuring proven settlement stability and legal finality. The upcoming PayChain $PCI runs in an open EVM environment, designed for global expansion and DeFi integration. It will be used for gas fees, sequencer staking, bridge security, governance, and incentives — especially in the P2F (Pay-to-Finance) model that connects real-world payments with DeFi liquidity. Over time, PayProtocol plans to gradually migrate from the Hyperledger mainnet to PayChain, combining Hyperledger’s stability with PayChain’s openness to build a unified blockchain payment infrastructure. Q4. Which wallets support $PCI? - Hyperledger $PCI: PayCoin App (native) - PayChain $PCI: Any EVM-compatible wallet (MetaMask, OKX Wallet, Rabby, etc.) Q5. Can the 50% of fees that are returned to the foundation be sold on the market? These fees are reinvested into ecosystem growth and market sales are technically possible. However, these tokens collected from fees come from the existing circulating supply rather than newly issued tokens, so their impact on the market remains limited. Q6. Where can I check burned $PCI? For Hyperledger, $PCI burns occur based on monthly aggregated payments and remittances. Records are viewable on the PayProtocol Scan explorer. For PayChain, each transaction triggers real-time burning. Its dedicated explorer will disclose these details upon release. Q7. With 844 million $PCI held by the foundation and only 28.8 million unlocked over two years, is that excessive? Are additional burns or lock-ups planned? Correct. Only up to 28.8 million $PCI (3.4 %) will be unlocked in the next two years from the foundation's holdings. Post that, new plans for additional lock-ups or burns will be established and governed via the upcoming governance dashboard. Q8. Are additional listings of $PCI planned? PayProtocol prioritizes strategic over rapid listings. Official announcements will follow once opportunities are confirmed. 📌 Useful links: Whitepaper V10 👉 payprotocol.io/white-paper

📘 PayProtocol White Paper V10 (Rebranded) We are thrilled to release our latest White Paper V10 (Rebranded), presenting the next stage of the blockchain-based payment infrastructure. This updated white paper outlines our vision for structural innovation across the ecosystem — emphasizing PayChain, Stablecoin Infrastructure, P2F (Pay-to-Finance), and the $PCI Token Economy as the core pillars. 🌐 PayChain, Expanding the Global Payment System PayChain is a purpose-built chain designed to fundamentally expand payment and settlement infrastructure. It introduces a two-layer structure that bridges traditional systems with a blockchain-based global network. - Paycoin L1: Hyperledger-based mainnet providing legal finality and regulatory compliance - PayChain L2: EVM-based extension layer enabling global settlement, liquidity management, and stablecoin operations PayChain serves as a dedicated blockchain for payments, providing convenience to both users and merchants while supporting regulation-friendly Web3 transactions. Key Features - Gas Abstraction: Allows users to execute transactions without holding a native token (e.g., ETH). Transactions are automatically sponsored through an Account Abstraction-based Paymaster, enabling a simplified, gas-agnostic user experience. - Performance & Finality: Delivers instant soft finality for user transactions, with financial and legal finality guaranteed through periodic L1 checkpoints. - Governance: Core parameters such as gas fees, incentives, and burn ratios are managed via on-chain governance, with delegation mechanisms expanding community participation. - Interoperability: PayChain supports a multi-chain environment via Cross-chain Messaging, ensuring seamless connectivity with external networks. We aim to establish a secure and open global blockchain payment infrastructure through the combined operation of PayChain and the Paycoin mainnet. 💵 Stablecoin Platform, A Trusted Hub for Global Settlement Built atop PayChain, the PayProtocol Stablecoin Platform serves as a global hub for fiat-backed stablecoin settlement. It connects multiple stablecoin systems and ensures transparent, compliant transaction flows. Core Components: - Cross-chain Messaging & Anchoring: Synchronizes mint/burn/settlement events across chains to prevent duplication. - Multi-chain Oracle: Verifies exchange rates, circulation, and data consistency across multiple networks. - Gas Sponsorship: Enables designated sponsors to cover transaction fees on behalf of users, providing an optimal UX. - Compliance Framework: Enforces on-chain KYC-based transaction control for regulatory alignment. Through this architecture, we aim to enable a stablecoin-based, real-world payment ecosystem that bridges traditional finance and Web3. 💰 P2F (Pay-to-Finance) — Combining Payments and Financial Activity P2F is PayProtocol’s newly designed Web3-native payment model, merging DeFi mechanisms with traditional payment flows. It enhances the value of payments by transforming every transaction into a yield-generating financial action. Process Overview: - Payment & Deposit: User payment assets are automatically deposited into a liquidity pool. - Liquidity Utilization: Funds remain in the pool and generate interest until settlement. - Settlement Request: Merchants can request settlement at any chosen time, with rewards varying by liquidity pool status and duration. - Reward Distribution: Yield generated within the pool is distributed among users, merchants, and the protocol. P2F seamlessly integrates with existing PayProtocol payment infrastructure. Merchants can adopt P2F without additional onboarding complexity, while users maintain the same familiar payment experience. 🔥 PCI Burn & Circulation Model — Building a Sustainable Value Cycle The latest white paper introduces a new burn and distribution model for the $PCI token, aimed at ensuring sustainable value creation within the ecosystem. 1. PCI Burn Model A portion of transaction fees from payments and transfers will be burned, ensuring that network activity directly contributes to the asset’s long-term value. - 50% of payment transaction fees are burned - 50% of transfer transaction fees are burned 2. PCI Circulation & Lockup Model The $PCI token’s distribution model has been restructured to establish a transparent and predictable operating framework. - Foundation Holdings: 844 million $PCI locked (100%) - Scheduled Unlock: 28.8 million $PCI (3.4% of holdings) to be unlocked over two years All $PCI lockup and release schedules are transparently executed on Arbitrum, with real-time data available on the official PayProtocol website. Read PayProtocol White Paper V10 (Rebranded) 👉 payprotocol.io/white-paper

Paycoin x KBW 2025 Recap✨

New $PCI Merchant: GS25! We are super thrilled to announce that @funGS25 will be joining the Paycoin merchant network. Users will be able to pay with $BTC, $ETH and $PCI in any GS25 convenient stores in Korea. 🏪