PHICOIN (PHI) is a high-performance Proof-of-Work (PoW) Infrastructure designed to deliver speed, security, and broad scalability for decentralized applications. Its ASIC-resistant algorithm, Phihash, prioritizes GPU mining fairness and decentralization, while 15-second block times enable rapid transaction throughput. A dynamic memory requirement phases out outdated hardware, fostering efficiency and long-term ecological sustainability.PHICOIN has built in Decentralized Domain Name Service (DDNS), which stores domain records on-chain and leverages IPFS for distributed, tamper-proof data. This approach provides fast, low-cost domain updates. PHICOIN’s ecosystem promotes fair mining incentives, supports continuous development, and sets a robust foundation for diverse applications—from infrastructure solutions to next-generation internet services.Phicoin’s team has extensive technical and financial expertise. Its blockchain has been professionally designed and planned, resulting in a long-term inflation rate of less than 2%, offering strong potential for appreciation. The whitepaper is available at https://arxiv.org/html