Identify the raster-processing dependencies of saved Survey Event masks

event_mask_key(context, selection, group, stream_id)

Arguments

context: Current Study Area context GeoPackage.
selection: Current Survey Collection selection GeoPackage.
group: Reviewed acquisition-group GeoPackage.
stream_id: One Stream in the group.

Value

Stable recipe digest covering geometry, grid, identities, native method and GIS versions. Unrelated labels, dates and metadata revisions are excluded. This is a reuse key, not a checksum of a raster or scientific approval.