Patent attributes
Implementations provide a flexible schema for efficiently querying chainable event blocks on user-identified data fields. An example method includes receiving at least one query parameter and, responsive to receiving the at least one query parameter, identifying an event access data record that includes a group identifier and a field matching the query parameter. The method also includes locating potential responsive blocks, the potential responsive blocks being event blocks in a chain that include the group identifier, and each of the potential responsive blocks also including content and a hash of a predecessor block. The method also includes identifying a first block of the potential responsive blocks that has content that includes the field matching the query parameter, and providing the first block as a response to the query.
