{"id":46841,"date":"2025-07-27T10:00:54","date_gmt":"2025-07-27T07:00:54","guid":{"rendered":"https:\/\/coinengineer.net\/blog\/?p=46841"},"modified":"2025-07-27T00:18:29","modified_gmt":"2025-07-26T21:18:29","slug":"what-is-paycoin-pci-payprotocol-review","status":"publish","type":"post","link":"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/","title":{"rendered":"What is Paycoin (PCI)? PayProtocol Review\u00a0"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_71 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/#What_is_Paycoin_PCI_PayProtocol_Review\" title=\"What is Paycoin (PCI)? PayProtocol Review\u00a0\">What is Paycoin (PCI)? PayProtocol Review\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/#How_Does_the_Project_Work\" title=\"How Does the Project Work?\u00a0\">How Does the Project Work?\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/#Core_Use_Cases\" title=\"Core Use Cases\u00a0\">Core Use Cases\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/#Paycoin_PCI_Features\" title=\"Paycoin (PCI) Features\u00a0\">Paycoin (PCI) Features\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/#Team_and_Partners\" title=\"Team and Partners\u00a0\">Team and Partners\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/#Token_Information\" title=\"Token Information\u00a0\">Token Information\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/#Token_Distribution\" title=\"Token Distribution\u00a0\">Token Distribution\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/#PayProtocol_Ecosystem_Components\" title=\"PayProtocol Ecosystem Components\u00a0\">PayProtocol Ecosystem Components\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/#PayProtocol_Bridge\" title=\"PayProtocol Bridge\u00a0\">PayProtocol Bridge\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/#Business_Model\" title=\"Business Model\u00a0\">Business Model\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/#Notable_Achievements\" title=\"Notable Achievements\u00a0\">Notable Achievements\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/#Roadmap\" title=\"Roadmap\u00a0\">Roadmap\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/#Social_Media_Community\" title=\"Social Media &amp; Community\u00a0\">Social Media &amp; Community\u00a0<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_is_Paycoin_PCI_PayProtocol_Review\"><\/span><span data-contrast=\"auto\">What is Paycoin (PCI)? PayProtocol Review<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span data-contrast=\"auto\"><strong>PayProtocol<\/strong> is a blockchain-powered <strong>digital payment<\/strong> solution developed by South Korea-based payment company <strong>Danal<\/strong>. It aims to eliminate the high transaction fees, long settlement times, and intermediary costs associated with traditional payment systems. Built on a private Hyperledger Fabric blockchain, it supports various digital assets (like <strong>BTC, ETH, USDT<\/strong>) and is accepted at over 150,000 stores and major retail chains in Korea. <strong>Paycoin (PCI)<\/strong> is the native token used within the PayProtocol ecosystem. The project seeks to promote the everyday use of crypto for real-world purchases.<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-46844 \" src=\"https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/paycoin-pci-1024x576.jpg\" alt=\"\" width=\"790\" height=\"444\" srcset=\"https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/paycoin-pci-1024x576.jpg 1024w, https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/paycoin-pci-300x169.jpg 300w, https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/paycoin-pci-768x432.jpg 768w, https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/paycoin-pci.jpg 1200w\" sizes=\"auto, (max-width: 790px) 100vw, 790px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_Does_the_Project_Work\"><\/span><span data-contrast=\"auto\">How Does the Project Work?<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span data-contrast=\"auto\"><strong>PayProtocol<\/strong> enables direct payments by connecting users, merchants, and wallet providers. The system consists of the following layers:<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n<ul>\n<li><span data-contrast=\"auto\"><strong>Blockchain<\/strong> Layer: Built on Hyperledger Fabric. Blocks contain PCI transactions and user data.<\/span><br \/>\n<span data-contrast=\"auto\"> The PayProtocol blockchain is responsible for verifying and processing payment and transaction orders. Within this network, core features enable interoperability between the network and participants. Only authorized peers can generate blocks and process payment requests, ensuring security, stability, and scalability.<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Protocol Layer: Includes API and SDK integrations.<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Service Layer: Connects POS systems, mobile apps, and third-party wallets.<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<\/ul>\n<p><span data-contrast=\"auto\">Blocks are created at least once per second. If over 500 transactions occur, block generation speeds up. All data is processed by authorized validators on the network.<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n<p><span data-ccp-props=\"{}\"> <img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-46846 size-full\" src=\"https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/pay-protokol-network.png\" alt=\"\" width=\"840\" height=\"368\" srcset=\"https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/pay-protokol-network.png 840w, https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/pay-protokol-network-300x131.png 300w, https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/pay-protokol-network-768x336.png 768w\" sizes=\"auto, (max-width: 840px) 100vw, 840px\" \/><\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Core_Use_Cases\"><\/span><span data-contrast=\"auto\">Core Use Cases<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><span data-contrast=\"auto\">Direct use in product\/service payments<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Low-cost wallet-to-wallet transfers (0.1% fee)<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Consumer campaigns and reward systems<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\"><a href=\"https:\/\/coinengineer.net\/blog\/category\/project-review\/defi-projects\/\"><strong>DeFi<\/strong> <\/a>and NFT compatibility via Ethereum bridge<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Paycoin_PCI_Features\"><\/span><span data-contrast=\"auto\">Paycoin (PCI) Features<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><span data-contrast=\"auto\">Fast and low-cost blockchain-based payment solution<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Private and permissioned Hyperledger Fabric infrastructure<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Supports multiple digital assets: <strong>BTC, ETH, USDT<\/strong><\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Accepted in 150,000+ stores and major retail chains in South Korea<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Ultra-low transfer fee of 0.1% between wallets<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Easy integration with API and SDK support<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Promotes everyday crypto usage<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Strong partners include Huobi, Bithumb, and Coinone<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Team_and_Partners\"><\/span><span data-contrast=\"auto\">Team and Partners<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span data-contrast=\"auto\">Paycoin is developed by South Korea-based PayProtocol. It has partnered with Huobi Korea Prime and 150,000+ merchants and retail chains in the past.<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n<ul>\n<li><span data-contrast=\"auto\">CEO: Jung Wook Shin<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">CTO: Su Jin Lim<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Director: Kyung Pyo Hong<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<\/ul>\n<p><span data-contrast=\"auto\">Crypto exchange partners include:<\/span> <span data-contrast=\"auto\"><strong>Bithumb<\/strong>, Coinone, Korbit, Bitget, <strong>Huobi Global<\/strong><\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n<p><span data-ccp-props=\"{}\"> <img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-46847 \" src=\"https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/kripto-borsa-ortakliklar-1024x464.png\" alt=\"\" width=\"760\" height=\"344\" srcset=\"https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/kripto-borsa-ortakliklar-1024x464.png 1024w, https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/kripto-borsa-ortakliklar-300x136.png 300w, https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/kripto-borsa-ortakliklar-768x348.png 768w, https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/kripto-borsa-ortakliklar.png 1204w\" sizes=\"auto, (max-width: 760px) 100vw, 760px\" \/><\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Token_Information\"><\/span><span data-contrast=\"auto\">Token Information<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><strong>Token Name: Paycoin\u00a0<\/strong><\/li>\n<li><span data-contrast=\"auto\">Symbol: PCI<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Network: Hyperledger Fabric (permissioned blockchain)<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\"><a href=\"https:\/\/coinmarketcap.com\/currencies\/payprotocol\/\"><strong>Total Supply<\/strong><\/a>: 1.9 billion PCI (post-burn)<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Circulating Supply: 1.05 billion PCI<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Initial Supply: 3.94 billion PCI<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<\/ul>\n<p><span data-ccp-props=\"{}\"> <img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-46848 size-full\" src=\"https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/token-pci.png\" alt=\"\" width=\"591\" height=\"359\" srcset=\"https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/token-pci.png 591w, https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/token-pci-300x182.png 300w\" sizes=\"auto, (max-width: 591px) 100vw, 591px\" \/><\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Token_Distribution\"><\/span><span data-contrast=\"auto\">Token Distribution<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><span data-contrast=\"auto\"><strong>Huobi Prime<\/strong> \u2013 1%: Released via Huobi Korea Prime<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Reserve \u2013 11%: For development, exchange integration, technical support (not sold on the market)<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Ecosystem Incentives \u2013 24%: For merchant PCI adoption, customer rewards, and discounts<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Marketing \u2013 14%: Global promotions, airdrops, South Korea market growth<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Operations \u2013 9%: Daily operations, system maintenance<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Team \u2013 5%: For developers, project managers, stakeholders<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Advisors \u2013 10%: Strategic and technical experts<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Global Marketing \u2013 26%: User acquisition and cross-border expansion (300M PCI locked and vesting over 5 years)<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"PayProtocol_Ecosystem_Components\"><\/span><span data-contrast=\"auto\">PayProtocol Ecosystem Components<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><span data-contrast=\"auto\"><strong>PayProtocol Network<\/strong>: Central system that validates all transactions<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\"><strong>Wallet Providers<\/strong>: Mobile apps accepting PCI via API\/SDK<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\"><strong>Merchants<\/strong>: Vendors accepting PCI and rewarding users<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\"><strong>Users<\/strong>: Individuals using PCI to buy goods and services<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"PayProtocol_Bridge\"><\/span><span data-contrast=\"auto\">PayProtocol Bridge<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span data-contrast=\"auto\">Since Paycoin runs on Hyperledger, it\u2019s not natively compatible with DeFi\/NFT platforms. A wrapped Ethereum version (<strong>wPCI<\/strong>) allows 1:1 conversion without affecting the total circulating supply.<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Business_Model\"><\/span><span data-contrast=\"auto\">Business Model<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><span data-contrast=\"auto\">A 2% fee is applied on international <strong>PCI payments<\/strong> (98% goes to merchants)<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">PCI transfers carry a 0.1% network fee (paid by sender)<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Validators don\u2019t earn fees but are rewarded through business development opportunities<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Businesses can integrate loyalty points with PCI<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Notable_Achievements\"><\/span><span data-contrast=\"auto\">Notable Achievements<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><span data-contrast=\"auto\">Integrated at over 150,000 stores (South Korea)<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">3.2 million active users<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Up to $1 million daily transaction volume<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Zero security breach incidents<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<\/ul>\n<p><span data-ccp-props=\"{}\"> <img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-46849 size-full\" src=\"https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/paycoin-basarilar.png\" alt=\"\" width=\"886\" height=\"244\" srcset=\"https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/paycoin-basarilar.png 886w, https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/paycoin-basarilar-300x83.png 300w, https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/paycoin-basarilar-768x212.png 768w\" sizes=\"auto, (max-width: 886px) 100vw, 886px\" \/><\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Roadmap\"><\/span><span data-contrast=\"auto\">Roadmap<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><span data-contrast=\"auto\">2019: Launched, early user acquisition<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">2022: Over 50% token supply burned<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">2023: Service paused due to regulatory issues in South Korea<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">2024\u20132026: <strong>DeFi, NFT<\/strong> integration, global marketing, regulatory compliance, cross-border expansion<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Q3 2024: Global franchise &amp; merchant acquisition<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Q4 2024: Infrastructure integration &amp; deployment<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">2025: Development of Paycoin&#8217;s own sidechain<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">2026: Unlocking of all cross-border tokens<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<\/ul>\n<p><span data-ccp-props=\"{}\"> <img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-46850 size-full\" src=\"https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/roadmap.png\" alt=\"\" width=\"857\" height=\"163\" srcset=\"https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/roadmap.png 857w, https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/roadmap-300x57.png 300w, https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/roadmap-768x146.png 768w\" sizes=\"auto, (max-width: 857px) 100vw, 857px\" \/><\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Social_Media_Community\"><\/span><span data-contrast=\"auto\">Social Media &amp; Community<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><a href=\"https:\/\/payprotocol.io\/\"><strong>Website<\/strong><\/a><\/li>\n<li><a href=\"https:\/\/x.com\/payprotocol\"><strong>Twitter<\/strong><\/a><\/li>\n<li><a href=\"https:\/\/t.me\/Paycoin_Korea\"><strong>Telegram<\/strong><\/a><\/li>\n<li><a href=\"https:\/\/medium.com\/payprotocol\"><strong>Medium<\/strong><\/a><\/li>\n<\/ul>\n<p><em class=\"darkmysite_style_txt_border darkmysite_processed\" data-darkmysite_alpha_bg=\"rgba(0, 0, 0, 0)\">You can also freely share your thoughts and comments about the topic in the comment section. Additionally, don\u2019t forget to follow us on our\u00a0<a class=\"darkmysite_style_txt_border darkmysite_style_link darkmysite_processed\" href=\"https:\/\/t.me\/coinengineernews\" target=\"_blank\" rel=\"nofollow noopener\" data-darkmysite_alpha_bg=\"rgba(0, 0, 0, 0)\"><strong class=\"darkmysite_style_txt_border darkmysite_processed\" data-darkmysite_alpha_bg=\"rgba(0, 0, 0, 0)\">Telegram,\u00a0<\/strong><\/a><a class=\"darkmysite_style_txt_border darkmysite_style_link darkmysite_processed\" href=\"https:\/\/www.youtube.com\/@CoinEngineer\" target=\"_blank\" rel=\"nofollow noopener\" data-darkmysite_alpha_bg=\"rgba(0, 0, 0, 0)\"><strong class=\"darkmysite_style_txt_border darkmysite_processed\" data-darkmysite_alpha_bg=\"rgba(0, 0, 0, 0)\">YouTube<\/strong><\/a>,\u00a0and\u00a0<a class=\"darkmysite_style_txt_border darkmysite_style_link darkmysite_processed\" href=\"https:\/\/twitter.com\/coinengineers\" target=\"_blank\" rel=\"nofollow noopener\" data-darkmysite_alpha_bg=\"rgba(0, 0, 0, 0)\"><strong class=\"darkmysite_style_txt_border darkmysite_processed\" data-darkmysite_alpha_bg=\"rgba(0, 0, 0, 0)\">Twitter<\/strong><\/a>\u00a0channels for the latest\u00a0<a class=\"darkmysite_style_txt_border darkmysite_style_link darkmysite_processed\" title=\"News\" href=\"https:\/\/coinengineer.net\/blog\/news\/\" data-internallinksmanager029f6b8e52c=\"7\" data-darkmysite_alpha_bg=\"rgba(0, 0, 0, 0)\">news<\/a>\u00a0and updates.<\/em><\/p>\n<p><span data-ccp-props=\"{}\">\u00a0<\/span><br \/>\n<script type=\"text\/javascript\" src=\"https:\/\/files.coinmarketcap.com\/static\/widget\/currency.js\"><\/script><\/p>\n<div class=\"coinmarketcap-currency-widget\" data-currencyid=\"5275\" data-base=\"USD\" data-secondary=\"\" data-ticker=\"true\" data-rank=\"true\" data-marketcap=\"true\" data-volume=\"true\" data-statsticker=\"true\" data-stats=\"USD\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>What is Paycoin (PCI)? PayProtocol Review\u00a0 PayProtocol is a blockchain-powered digital payment solution developed by South Korea-based payment company Danal. It aims to eliminate the high transaction fees, long settlement times, and intermediary costs associated with traditional payment systems. Built on a private Hyperledger Fabric blockchain, it supports various digital assets (like BTC, ETH, USDT)<\/p>\n","protected":false},"author":36,"featured_media":46842,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18,5],"tags":[13484,21438,21439,21435,21436,13622,21437],"class_list":["post-46841","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-altcoin-projects","category-project-review","tag-blockchain-payments","tag-crypto-shopping","tag-defi-bridge-token","tag-hyperledger-pci","tag-payprotocol-token","tag-south-korea-crypto","tag-wrapped-pci"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is Paycoin (PCI)? PayProtocol Review\u00a0 - Coin Engineer<\/title>\n<meta name=\"description\" content=\"Paycoin (PCI) is a blockchain-based digital payment token used in over 150,000 stores, enabling fast, low-cost crypto transactions.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is Paycoin (PCI)? PayProtocol Review\u00a0 - Coin Engineer\" \/>\n<meta property=\"og:description\" content=\"Paycoin (PCI) is a blockchain-based digital payment token used in over 150,000 stores, enabling fast, low-cost crypto transactions.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/\" \/>\n<meta property=\"og:site_name\" content=\"Coin Engineer\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-27T07:00:54+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-07-26T21:18:29+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/what-is-payprotocol.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1280\" \/>\n\t<meta property=\"og:image:height\" content=\"720\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Yeliz Akmaca\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Yeliz Akmaca\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/\",\"url\":\"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/\",\"name\":\"What is Paycoin (PCI)? PayProtocol Review\u00a0 - Coin Engineer\",\"isPartOf\":{\"@id\":\"https:\/\/coinengineer.net\/blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/what-is-payprotocol.png\",\"datePublished\":\"2025-07-27T07:00:54+00:00\",\"dateModified\":\"2025-07-26T21:18:29+00:00\",\"author\":{\"@id\":\"https:\/\/coinengineer.net\/blog\/#\/schema\/person\/5f900e6c865999388c1ea494e5953442\"},\"description\":\"Paycoin (PCI) is a blockchain-based digital payment token used in over 150,000 stores, enabling fast, low-cost crypto transactions.\",\"breadcrumb\":{\"@id\":\"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/#primaryimage\",\"url\":\"https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/what-is-payprotocol.png\",\"contentUrl\":\"https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/what-is-payprotocol.png\",\"width\":1280,\"height\":720,\"caption\":\"paycoin pc\u0131\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/coinengineer.net\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"What is Paycoin (PCI)? PayProtocol Review\u00a0\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/coinengineer.net\/blog\/#website\",\"url\":\"https:\/\/coinengineer.net\/blog\/\",\"name\":\"Coin Engineer\",\"description\":\"Btc, Coins, Pre-Sale, DeFi, NFT\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/coinengineer.net\/blog\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/coinengineer.net\/blog\/#\/schema\/person\/5f900e6c865999388c1ea494e5953442\",\"name\":\"Yeliz Akmaca\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/coinengineer.net\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/b399e2146177639d343205648bae3bdb3cd7bb9d02c7186f71149c7122151b69?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/b399e2146177639d343205648bae3bdb3cd7bb9d02c7186f71149c7122151b69?s=96&d=mm&r=g\",\"caption\":\"Yeliz Akmaca\"},\"url\":\"https:\/\/coinengineer.net\/blog\/author\/cmyelizz\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"What is Paycoin (PCI)? PayProtocol Review\u00a0 - Coin Engineer","description":"Paycoin (PCI) is a blockchain-based digital payment token used in over 150,000 stores, enabling fast, low-cost crypto transactions.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/","og_locale":"en_US","og_type":"article","og_title":"What is Paycoin (PCI)? PayProtocol Review\u00a0 - Coin Engineer","og_description":"Paycoin (PCI) is a blockchain-based digital payment token used in over 150,000 stores, enabling fast, low-cost crypto transactions.","og_url":"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/","og_site_name":"Coin Engineer","article_published_time":"2025-07-27T07:00:54+00:00","article_modified_time":"2025-07-26T21:18:29+00:00","og_image":[{"width":1280,"height":720,"url":"https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/what-is-payprotocol.png","type":"image\/png"}],"author":"Yeliz Akmaca","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Yeliz Akmaca","Est. reading time":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/","url":"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/","name":"What is Paycoin (PCI)? PayProtocol Review\u00a0 - Coin Engineer","isPartOf":{"@id":"https:\/\/coinengineer.net\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/#primaryimage"},"image":{"@id":"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/#primaryimage"},"thumbnailUrl":"https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/what-is-payprotocol.png","datePublished":"2025-07-27T07:00:54+00:00","dateModified":"2025-07-26T21:18:29+00:00","author":{"@id":"https:\/\/coinengineer.net\/blog\/#\/schema\/person\/5f900e6c865999388c1ea494e5953442"},"description":"Paycoin (PCI) is a blockchain-based digital payment token used in over 150,000 stores, enabling fast, low-cost crypto transactions.","breadcrumb":{"@id":"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/#primaryimage","url":"https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/what-is-payprotocol.png","contentUrl":"https:\/\/coinengineer.net\/blog\/wp-content\/uploads\/2025\/07\/what-is-payprotocol.png","width":1280,"height":720,"caption":"paycoin pc\u0131"},{"@type":"BreadcrumbList","@id":"https:\/\/coinengineer.net\/blog\/what-is-paycoin-pci-payprotocol-review\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/coinengineer.net\/blog\/"},{"@type":"ListItem","position":2,"name":"What is Paycoin (PCI)? PayProtocol Review\u00a0"}]},{"@type":"WebSite","@id":"https:\/\/coinengineer.net\/blog\/#website","url":"https:\/\/coinengineer.net\/blog\/","name":"Coin Engineer","description":"Btc, Coins, Pre-Sale, DeFi, NFT","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/coinengineer.net\/blog\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/coinengineer.net\/blog\/#\/schema\/person\/5f900e6c865999388c1ea494e5953442","name":"Yeliz Akmaca","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/coinengineer.net\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/b399e2146177639d343205648bae3bdb3cd7bb9d02c7186f71149c7122151b69?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/b399e2146177639d343205648bae3bdb3cd7bb9d02c7186f71149c7122151b69?s=96&d=mm&r=g","caption":"Yeliz Akmaca"},"url":"https:\/\/coinengineer.net\/blog\/author\/cmyelizz\/"}]}},"_links":{"self":[{"href":"https:\/\/coinengineer.net\/blog\/wp-json\/wp\/v2\/posts\/46841","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/coinengineer.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/coinengineer.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/coinengineer.net\/blog\/wp-json\/wp\/v2\/users\/36"}],"replies":[{"embeddable":true,"href":"https:\/\/coinengineer.net\/blog\/wp-json\/wp\/v2\/comments?post=46841"}],"version-history":[{"count":6,"href":"https:\/\/coinengineer.net\/blog\/wp-json\/wp\/v2\/posts\/46841\/revisions"}],"predecessor-version":[{"id":46854,"href":"https:\/\/coinengineer.net\/blog\/wp-json\/wp\/v2\/posts\/46841\/revisions\/46854"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/coinengineer.net\/blog\/wp-json\/wp\/v2\/media\/46842"}],"wp:attachment":[{"href":"https:\/\/coinengineer.net\/blog\/wp-json\/wp\/v2\/media?parent=46841"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/coinengineer.net\/blog\/wp-json\/wp\/v2\/categories?post=46841"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/coinengineer.net\/blog\/wp-json\/wp\/v2\/tags?post=46841"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}