tree /lineage — parent→child forests

The census parent graph rendered as collapsible trees — one page per spine root (445 roots, 2,973 descendant edges), plus the 167 V1 children that have no parent getter at all (flat TBILL-parity era — each is its own root unless it later became a parent hub). Trees use native <details> elements — they collapse and expand without JavaScript. Class badges link into the entity pages. This is the reference view; the interactive /walker tool walks (and mints along) any of these trees with your own wallet.