The prototype of the product should be ready even before approaching any entity to raise funds. Once this goal is achieved start writing your own questionnaire and answer six important questions to raise funds or capital from any entity.
The most important question to be answered is who is your trusted reliable resource. The most trusted reliable resource for your fintech blockchain based technology is to identify your paying clients or customers. IDENTIFYING right data points is going to open many avenues to funding opportunities. If you wish get more insight feel free to ask me next course of success model to raise funds.
All the best !!