diff --git a/src/denom_data.ml b/src/denom_data.ml
index cde45055..e83a80a3 100644
--- a/src/denom_data.ml
+++ b/src/denom_data.ml
@@ -2,7 +2,6 @@ open Crypto
 
 type t = {
   pub: rsa_pub;
-  section_name: string;
   value: Amount.t;
   stamp_start: Timestamp.t;
   stamp_expire_withdraw: Timestamp.t;
diff --git a/src/http_management.ml b/src/http_management.ml
index 65842da2..33f76b2f 100644
--- a/src/http_management.ml
+++ b/src/http_management.ml
@@ -2,10 +2,9 @@ open Syntax
 open Api
 
 module Keys_get = struct
-  let mk_future_denom ~sm
+  let mk_future_denom ~sm ~section_name
       ({
          pub;
-         section_name;
          value;
          stamp_start;
          stamp_expire_withdraw;
@@ -75,7 +74,8 @@ module Keys_get = struct
     let future_denoms =
       Secmod.get_denoms_data sm
       |> List.filter (fun k -> Option.is_none k.Denom_data.master_sig)
-      |> List.map (fun denom -> mk_future_denom ~sm denom)
+      |> List.map (fun denom ->
+          mk_future_denom ~sm ~section_name:"TODO section_name" denom)
     in
     let master_pub = Config.Exchange.master_public_key in
     let denom_secmod_public_key = Secmod.get_sm_key_pub sm in
diff --git a/src/pg.ml b/src/pg.ml
index 4954e0d3..6e2ac29e 100644
--- a/src/pg.ml
+++ b/src/pg.ml
@@ -42,6 +42,22 @@ module Caqti_type = struct
   let wire_method = Caqti_type.string
   let payto_uri = Caqti_type.string
 
+  include struct
+    (* alias for hash *)
+
+    let fullpayto_hash = FullPaytoHash.caqti
+    let nomalizaedpayto_hash = NormalizedPaytoHash.caqti
+    let denomination_hash = DenominationHash.caqti
+    let privatecontract_hash = PrivateContractHash.caqti
+    let extensionspolicy_hash = ExtensionsPolicyHash.caqti
+    let merchantwire_hash = MerchantWireHash.caqti
+    let agecommitment_hash = AgeCommitmentHash.caqti
+    let blindedcoin_hash = BlindedCoinHash.caqti
+    let coinpub_hash = CoinPubHash.caqti
+    let outputcommitment_hash = OutputCommitmentHash.caqti
+    let planchets_hash = HashPlanchetsP.caqti
+  end
+
   let signkey_data =
     let master_sig = Bin_sig.ExchangeSigningKeyValidity.caqti in
     custom
@@ -63,6 +79,76 @@ module Caqti_type = struct
           })
       (t5 eddsa_pub time time time master_sig)
 
+  let denom_data =
+    let master_sig = Bin_sig.DenominationKeyValidity.caqti in
+    custom
+      ~encode:(fun
+          Denom_data.
+            {
+              pub;
+              value;
+              stamp_start;
+              stamp_expire_withdraw;
+              stamp_expire_deposit;
+              stamp_expire_legal;
+              fee_withdraw;
+              fee_deposit;
+              fee_refresh;
+              fee_refund;
+              age_mask;
+              h_pub;
+              master_sig;
+            }
+        ->
+        match master_sig with
+        | None -> Error "denom_data master_sig is none"
+        | Some master_sig ->
+            Ok
+              ( pub,
+                value,
+                stamp_start,
+                stamp_expire_withdraw,
+                stamp_expire_deposit,
+                stamp_expire_legal,
+                fee_withdraw,
+                fee_deposit,
+                fee_refresh,
+                fee_refund,
+                age_mask,
+                (h_pub, master_sig) ))
+      ~decode:(fun
+          ( pub,
+            value,
+            stamp_start,
+            stamp_expire_withdraw,
+            stamp_expire_deposit,
+            stamp_expire_legal,
+            fee_withdraw,
+            fee_deposit,
+            fee_refresh,
+            fee_refund,
+            age_mask,
+            (h_pub, master_sig) )
+        ->
+        Ok
+          {
+            pub;
+            value;
+            stamp_start;
+            stamp_expire_withdraw;
+            stamp_expire_deposit;
+            stamp_expire_legal;
+            fee_withdraw;
+            fee_deposit;
+            fee_refresh;
+            fee_refund;
+            age_mask;
+            h_pub;
+            master_sig= Some master_sig;
+          })
+      (t12 rsa_pub amount time time time time amount amount amount amount int
+         (t2 denomination_hash master_sig))
+
   let account_restrictions =
     custom
       ~encode:(fun l -> Api.encode (Jsont.list AccountRestriction.jsont) l)
@@ -122,22 +208,6 @@ module Caqti_type = struct
       Caqti_type.(
         t9 time time amount amount amount time_span int32 time_span master_sig)
 
-  include struct
-    (* alias for hash *)
-
-    let fullpayto_hash = FullPaytoHash.caqti
-    let nomalizaedpayto_hash = NormalizedPaytoHash.caqti
-    let denomination_hash = DenominationHash.caqti
-    let privatecontract_hash = PrivateContractHash.caqti
-    let extensionspolicy_hash = ExtensionsPolicyHash.caqti
-    let merchantwire_hash = MerchantWireHash.caqti
-    let agecommitment_hash = AgeCommitmentHash.caqti
-    let blindedcoin_hash = BlindedCoinHash.caqti
-    let coinpub_hash = CoinPubHash.caqti
-    let outputcommitment_hash = OutputCommitmentHash.caqti
-    let planchets_hash = HashPlanchetsP.caqti
-  end
-
   include Caqti_request.Infix
 end
 
@@ -204,7 +274,6 @@ let add_denomination_key =
     Denom_data.
       {
         pub;
-        section_name= _;
         value;
         stamp_start;
         stamp_expire_withdraw;
diff --git a/src/secmod.ml b/src/secmod.ml
index e3f959ac..901d9b6d 100644
--- a/src/secmod.ml
+++ b/src/secmod.ml
@@ -170,7 +170,6 @@ let db_lookup_denom_data conn ~section_name priv =
         Denom_data.
           {
             pub;
-            section_name;
             value;
             stamp_start;
             stamp_expire_withdraw;
@@ -294,7 +293,7 @@ let make_new_signkey () =
 let make_new_denom
     Config.Coin.
       {
-        section_name;
+        section_name= _;
         value;
         duration_withdraw;
         duration_spend;
@@ -325,7 +324,6 @@ let make_new_denom
     Denom_data.
       {
         pub;
-        section_name;
         value;
         stamp_start;
         stamp_expire_withdraw;