diff --git a/lib/ae_mdw/oracles.ex b/lib/ae_mdw/oracles.ex
index 369e9481f..6f7651366 100644
--- a/lib/ae_mdw/oracles.ex
+++ b/lib/ae_mdw/oracles.ex
@@ -385,27 +385,25 @@ defmodule AeMdw.Oracles do
     query_format = :aeo_oracles.query_format(oracle_rec)
     response_format = :aeo_oracles.response_format(oracle_rec)
     query_fee = :aeo_oracles.query_fee(oracle_rec)
-    v3? = Keyword.get(opts, :v3?, false)
 
-    oracle =
-      %{
-        oracle: Enc.encode(:oracle_pubkey, pk),
-        active: is_active?,
-        active_from: register_height,
-        register_time: DbUtil.block_index_to_time(state, register_bi),
-        expire_height: expire_height,
-        approximate_expire_time:
-          DbUtil.height_to_time(state, expire_height, last_gen, last_micro_time),
-        register: expand_bi_txi_idx(state, register_bi_txi_idx, opts),
-        register_tx_hash: Enc.encode(:tx_hash, Txs.txi_to_hash(state, register_txi)),
-        query_fee: query_fee,
-        format: %{
-          query: query_format,
-          response: response_format
-        }
+    oracle = %{
+      oracle: Enc.encode(:oracle_pubkey, pk),
+      active: is_active?,
+      active_from: register_height,
+      register_time: DbUtil.block_index_to_time(state, register_bi),
+      expire_height: expire_height,
+      approximate_expire_time:
+        DbUtil.height_to_time(state, expire_height, last_gen, last_micro_time),
+      register: expand_bi_txi_idx(state, register_bi_txi_idx, opts),
+      register_tx_hash: Enc.encode(:tx_hash, Txs.txi_to_hash(state, register_txi)),
+      query_fee: query_fee,
+      format: %{
+        query: query_format,
+        response: response_format
       }
+    }
 
-    if v3? do
+    if Keyword.get(opts, :v3?, false) do
       oracle
     else
       Map.put(oracle, :extends, Enum.map(extends, &expand_bi_txi_idx(state, &1, opts)))
@@ -447,7 +445,7 @@ defmodule AeMdw.Oracles do
       Keyword.get(opts, :v3?, false) ->
         state
         |> Txs.fetch!(txi)
-        |> Map.put("tx_hash", Enc.encode(:tx_hash, Txs.txi_to_hash(state, txi)))
+        |> put_in(["tx", "tx_hash"], Enc.encode(:tx_hash, Txs.txi_to_hash(state, txi)))
         |> Map.drop(["tx_index"])
 
       Keyword.get(opts, :expand?, false) ->
diff --git a/lib/ae_mdw_web/controllers/oracle_controller.ex b/lib/ae_mdw_web/controllers/oracle_controller.ex
index 41731b443..a50d2ee50 100644
--- a/lib/ae_mdw_web/controllers/oracle_controller.ex
+++ b/lib/ae_mdw_web/controllers/oracle_controller.ex
@@ -15,7 +15,7 @@ defmodule AeMdwWeb.OracleController do
 
   @spec oracle(Conn.t(), map()) :: Conn.t()
   def oracle(%Conn{assigns: %{state: state, opts: opts}} = conn, %{"id" => id}) do
-    with opts <- [{:v3, true} | opts],
+    with opts <- [{:v3?, true} | opts],
          {:ok, oracle_pk} <- Validate.id(id, [:oracle_pubkey]),
          {:ok, oracle} <- Oracles.fetch(state, oracle_pk, opts) do
       format_json(conn, oracle)
diff --git a/test/ae_mdw_web/controllers/oracle_controller_test.exs b/test/ae_mdw_web/controllers/oracle_controller_test.exs
index b05018960..e4ecaf3f3 100644
--- a/test/ae_mdw_web/controllers/oracle_controller_test.exs
+++ b/test/ae_mdw_web/controllers/oracle_controller_test.exs
@@ -1,4 +1,5 @@
 defmodule AeMdwWeb.OracleControllerTest do
+  alias AeMdw.Db.Format
   use AeMdwWeb.ConnCase
   @moduletag skip_store: true
 
@@ -156,6 +157,83 @@ defmodule AeMdwWeb.OracleControllerTest do
   end
 
   describe "oracles" do
+    test "it retrieves an oracle", %{
+      conn: conn,
+      store: store,
+      inactive_oracles: [oracle_id1 | _],
+      encoded_pks: [encoded_oracle_id | _]
+    } do
+      account_pk1 = <<7::256>>
+      account_id1 = :aeser_id.create(:account, account_pk1)
+      oracle_id = :aeser_id.create(:oracle, oracle_id1)
+
+      {:ok, oracle_query_aetx1} =
+        :aeo_query_tx.new(%{
+          sender_id: account_id1,
+          nonce: 1,
+          oracle_id: oracle_id,
+          query: "query-1",
+          query_fee: 11,
+          query_ttl: {:delta, 111},
+          response_ttl: {:delta, 1_111},
+          fee: 11_111
+        })
+
+      signed_tx1 = :aetx_sign.new(oracle_query_aetx1, [])
+      block_hash = <<950::256>>
+
+      with_mocks [
+        {Oracle, [:passthrough], [oracle_tree!: fn _block_hash -> :aeo_state_tree.empty() end]},
+        {Format, [:passthrough],
+         [
+           to_map: fn _state, {:tx, _index, hash, {_kb_index, _mb_index}, _mb_time} ->
+             %{
+               "hash" => Enc.encode(:tx_hash, hash),
+               "tx" => %{
+                 "abi_version" => 0,
+                 "account_id" => Enc.encode(:account_pubkey, account_pk1),
+                 "nonce" => 1,
+                 "fee" => 11_111,
+                 "oracle_ttl" => %{"type" => "delta", "value" => 111},
+                 "query_fee" => 11,
+                 "type" => "OracleRegisterTx",
+                 "version" => 1,
+                 "tx_hash" => Enc.encode(:tx_hash, hash)
+               }
+             }
+           end
+         ]},
+        {:aeo_state_tree, [:passthrough], [get_oracle: fn _pk, _tree -> TS.core_oracle() end]},
+        {:aec_db, [],
+         [
+           get_header: fn <<height::256>> -> <<height::256>> end,
+           find_tx_with_location: fn _tx_hash -> {block_hash, signed_tx1} end
+         ]},
+        {:aec_headers, [:passthrough],
+         [time_in_msecs: fn <<height::256>> -> @node_times[height] end]}
+      ] do
+        assert oracle =
+                 conn
+                 |> with_store(store)
+                 |> get("/v3/oracles/#{encoded_oracle_id}")
+                 |> json_response(200)
+
+        exp1_time = @node_times[@exp1]
+        reg_time1 = @node_times[901]
+
+        assert %{
+                 "oracle" => ^encoded_oracle_id,
+                 "approximate_expire_time" => ^exp1_time,
+                 "register_time" => ^reg_time1,
+                 "register_tx_hash" => tx_hash,
+                 "register" => %{
+                   "hash" => tx_hash,
+                   "tx" => %{"type" => "OracleRegisterTx", "tx_hash" => tx_hash}
+                 }
+               } = oracle
+      end
+    end
+
     test "it retrieves active oracles first", %{
       conn: conn,
       store: store,