A tool designed to estimate the degree of ancestry from a particular Indigenous group or tribe is often implemented through online resources or specialized software. These tools typically require users to input information about their ancestors, such as tribal affiliation and percentage of Native “blood,” to generate a visual representation or numerical estimate of an individual’s “blood quantum.” For example, if someone has a parent who is a full member of a tribe and another parent of non-Native heritage, the tool might calculate a blood quantum of one-half.
This process is frequently used for enrollment in federally recognized tribes, access to tribal services, and affirmation of cultural identity. Historically, the concept originated with colonial governments as a method of controlling Indigenous populations and access to resources. While the concept is controversial due to its imposed nature and potential inaccuracies, it continues to hold significance in the contemporary context of tribal sovereignty and self-determination.
