This visualization renders a Merkle tree, a cryptographic data structure where each node’s ID is derived from its children’s hashes. Using D3 v5’s `tree` layout and `hierarchy` on a JSON file, it draws horizontal links with `linkHorizontal` and displays each node’s full hash as text, sized inversely by depth. The SVG output supports zooming via D3’s `zoom` behavior, and text styling uses the Playfair Display font with white shadows for readability.