The version in force of a shape's lineage: the live row at its home and family when a read
found it. One type for one fact, named by each holder's field for how the row relates to it —
successor on a folded shape's refusal, in_force on a query trace's artifact ask. The type
carries the refusal's name; a trace entry whose shape was not amended names the asked row itself.
{
"shape_id": "31ac396b-c69d-49ad-bb94-019763bcfde0",
"shape_version": 0
}