What this song renders
The setting is firmly documented. The Ipatiev House really was designated the ‘House of Special Purpose’ (Dom osobogo naznacheniya) in Bolshevik administrative usage; the windows were whitewashed and later barred, a palisade fence enclosed the yard, and the family dug a kitchen garden during their captivity — small details attested in the captivity record.
The tightening the second verse describes is also documented: the early, comparatively lax guards were replaced by a harder internal detachment under Yakov Yurovsky in July 1918, and the family’s letters, walks, and contact were progressively restricted as the end approached. The song images all of this rather than stating it.
‘The word’ that the chorus walks in — the execution order — is the album’s seam into the next track, where the sentence is read in the cellar. The phrase ‘a name for the killing, before they did it’ is the song’s interpretation of the euphemism, not a contemporary quotation.
The ‘House of Special Purpose’ name, the whitewashed windows, the palisade, the kitchen garden, and the hardening of the guard are documented or well-attested. The lure ‘down for a photograph’ rests largely on the killers’ own single-tradition accounts. See Truth & Legend.