diff --git a/main.sql b/main.sql
index fabe89e..0580eb8 100644
--- a/main.sql
+++ b/main.sql
@@ -14,6 +14,7 @@ WITH abc AS (
         CAST(NULLIF(NULLIF(LOWER(TRIM(thx.summary_risk_score::text)), ''), 'none') AS DOUBLE PRECISION) AS summary_risk_score,
         CAST(NULLIF(NULLIF(LOWER(TRIM(thx.cpu_clock::text)), ''), 'none') AS DOUBLE PRECISION) AS cpu_clock,
         CAST(NULLIF(NULLIF(thx.true_ip_first_seen::text, ''), 'None') AS DATE) AS true_ip_first_seen,
+        NULLIF(NULLIF(LOWER(TRIM(thx.ssn_hash::text)), ''), 'none') AS ssn_hash,
         CAST(NULLIF(NULLIF(thx.ssn_hash_first_seen::text, ''),'None') AS DATE) AS ssn_hash_first_seen,
         thx.account_email_attributes,
         CAST(NULLIF(NULLIF(LOWER(TRIM(thx.tps_ip_latitude::text)), ''), 'none') AS DOUBLE PRECISION) AS tps_ip_latitude,
@@ -56,6 +57,7 @@ current_app AS (
         application_ssn,
         application_customer_type,
         zip,
+        NULLIF(NULLIF(LOWER(TRIM($input_ssn_hash::text)), ''), 'none') AS ssn_hash,
         $input_ip_address AS input_ip_address,
         $input_ip_connection_type AS input_ip_connection_type,
         $input_ip_isp AS input_ip_isp,
@@ -259,7 +261,7 @@ clusters_g2 AS (
 input_ip_velocity_population AS (
     SELECT
         cur.current_app_key,
-        NULLIF(app.application_ssn, '') AS application_ssn,
+        NULLIF(NULLIF(LOWER(TRIM(thx.ssn_hash::text)), ''), 'none') AS ssn_hash,
         NULLIF(NULLIF(LOWER(TRIM(up.zip::text)), ''), 'none') AS zip
     FROM current_app cur
     JOIN public.thx AS thx
@@ -277,7 +279,7 @@ input_ip_velocity_population AS (
 
     SELECT
         current_app_key,
-        application_ssn,
+        ssn_hash,
         zip
     FROM current_app
     WHERE input_ip_address IS NOT NULL
@@ -288,8 +290,8 @@ input_ip_velocity AS (
     SELECT
         current_app_key,
         COUNT(DISTINCT CASE
-            WHEN LOWER(TRIM(application_ssn::text)) NOT IN ('', 'nan', 'null', 'none', 'n/a')
-            THEN application_ssn
+            WHEN LOWER(TRIM(ssn_hash::text)) NOT IN ('', 'nan', 'null', 'none', 'n/a')
+            THEN ssn_hash
             ELSE NULL
         END) AS input_ip_distinct_ssn_24h,
         COUNT(DISTINCT CASE
diff --git a/request_schema.json b/request_schema.json
index 10972a1..e2dc69c 100644
--- a/request_schema.json
+++ b/request_schema.json
@@ -32,6 +32,10 @@
     "input_ip_isp": {
       "type": ["string", "null"],
       "description": "Current application THX input IP ISP."
+    },
+    "input_ssn_hash": {
+      "type": ["string", "null"],
+      "description": "Current application THX SSN hash."
     }
   },
   "required": []