1.a) Name of the IT system referred to in this responsible declaration : Quipu App
1.b) Identifier code of the IT system referred to in item a) of this responsible declaration : 1Q
1.c) Full identifier of the specific version of the IT system referred to in this responsible declaration : 5.3.5
1.d) Components —hardware and software— of the IT system referred to in this responsible declaration, together with a brief description of what the system does and its main functionalities: It is purely a software product that enables invoicing and the management of issued invoices. The application is accessible from any device with an internet connection —no local installation is required— via a web browser or a mobile app compatible with common operating systems. The product is designed to operate exclusively online (cloud-based), hosted on secure infrastructure managed by the producing entity, which users access through individual authentication. Access can take place from different devices or by different users, with permission and role controls, allowing collaboration among several profiles within the same invoicing environment. The software offers the usual features for this kind of application: capturing invoicing data, issuing invoices, consulting invoices, viewing statistics, exporting invoicing data, integrating means of payment, and performing reconciliations. The system also includes additional administrative and treasury-management functions, multiple integrations with third-party services (such as banks, accounting tools, or business-management platforms), and an open API that allows external developers to connect their own applications. The software lets users manage several invoicing sets independently, each of which separately complies with the regulations mentioned in section 1.k) of this responsible declaration, as though, in practice, they were distinct invoicing IT systems.