Arx Research announced a $6.1 million seed round led by Castle Island Ventures, with investors including Inflection, Placeholder, Seed Club Ventures, and 1kx. The funding will support a handheld point-of-sale terminal that processes both native stablecoin payments via NFC and traditional EMV card transactions, offering merchants a single device for cryptocurrency and fiat payments. The official statement highlights near-zero fees for stablecoin transactions and seamless integration with established payment rails.