{"file":"docs/seed/Minimum_Database_Model.txt","start":62,"end":73,"lines":[{"number":62,"text":"key_policy_versions"},{"number":63,"text":"id"},{"number":64,"text":"logical_key_id"},{"number":65,"text":"version"},{"number":66,"text":"canonical_policy"},{"number":67,"text":"policy_hash"},{"number":68,"text":"created_by_owner_id"},{"number":69,"text":"created_by_key_id"},{"number":70,"text":"created_at"},{"number":71,"text":"superseded_at"},{"number":72,"text":""},{"number":73,"text":"Policies are immutable. A change creates a new policy version."}]}