diff --git a/proofs/simple.pism b/proofs/simple.pism
index 04838daac..3cb4ea3f3 100644
--- a/proofs/simple.pism
+++ b/proofs/simple.pism
@@ -19,17 +19,20 @@ start
     ec_add public public ak
     emit_ec public
 
-    alloc_binary preimage
-    ec_repr repr_ak ak
-    binary_extend preimage repr_ak
-    static_assert_binary_size preimage 256
-    blake2s ivk preimage CRH_IVK
-    binary_clone ivk2 ivk
-    emit_binary ivk
-    binary_truncate ivk2 JUBJUB_FR_CAPACITY
-    u64_as_binary_le value_bits param:value
-    ec_mul pk_d value_bits public
-    pedersen_hash cm ivk NOTE_COMMIT
-    ec_get_u cur cm
+    # Below lines are random garbage
+    # Uncomment them to test
+
+    #alloc_binary preimage
+    #ec_repr repr_ak ak
+    #binary_extend preimage repr_ak
+    #static_assert_binary_size preimage 256
+    #blake2s ivk preimage CRH_IVK
+    #binary_clone ivk2 ivk
+    #emit_binary ivk
+    #binary_truncate ivk2 JUBJUB_FR_CAPACITY
+    #u64_as_binary_le value_bits param:value
+    #ec_mul pk_d value_bits public
+    #pedersen_hash cm ivk NOTE_COMMIT
+    #ec_get_u cur cm
 end