42 Authentication in the field of credit and debit cards, gift cards, consumer products, works of art, stamps, financial products, replacement parts, jewelry, medical products, pharmaceuticals, event and travel tickets, and data; Design and implementation of software and technology solutions for the purpose of product and document authentication and tracking, and brand monitoring and protection, to protect against counterfeiting, tampering, and diversion, and to ensure the integrity of genuine products and documents; Design, development, and implementation of software for authenticating user identification and identity documents, credit and debit cards, gift cards, financial products, consumer products, works of art, stamps, replacement parts, jewelry, manufactured goods, medical products, pharmaceuticals, event and travel tickets, and data