What are 'parents' in Kaspa's blockDAG?

In Kaspa's blockDAG, 'parents' are the blocks that a newly created block directly references in its header. In a traditional blockchain, each block points back to only one previous block, forming a single chain. In a blockDAG, a block can reference multiple prior blocks at once — those referenced blocks are its parents — and this referencing is what creates the explicit, traceable relationships that define the DAG structure. Understanding parents matters because they are the mechanism that allows Kaspa to track and order parallel blocks, which is the foundation of its ability to process more transactions without discarding work.