diff --git a/x/tx/signing/textual/duration_test.go b/x/tx/signing/textual/duration_test.go
index 63b9463a56..baf015e5e3 100644
--- a/x/tx/signing/textual/duration_test.go
+++ b/x/tx/signing/textual/duration_test.go
@@ -10,7 +10,6 @@ import (
 	"cosmossdk.io/x/tx/signing/textual"
 	"github.com/stretchr/testify/require"
 
-	"google.golang.org/protobuf/proto"
 	"google.golang.org/protobuf/reflect/protoreflect"
 	dpb "google.golang.org/protobuf/types/known/durationpb"
 )
@@ -54,7 +53,7 @@ func TestDurationJSON(t *testing.T) {
 			msg := val.Message().Interface()
 			require.IsType(t, &dpb.Duration{}, msg)
 			duration := msg.(*dpb.Duration)
-			require.True(t, proto.Equal(duration, tc.Proto), "%v vs %v", duration, tc.Proto)
+			require.Equal(t, duration.AsDuration(), tc.Proto.AsDuration(), "%v vs %v", duration, tc.Proto)
 		})
 	}
 }
diff --git a/x/tx/signing/textual/fuzz_test.go b/x/tx/signing/textual/fuzz_test.go
index fa9e466414..c2e0908a44 100644
--- a/x/tx/signing/textual/fuzz_test.go
+++ b/x/tx/signing/textual/fuzz_test.go
@@ -2,8 +2,13 @@ package textual_test
 
 import (
 	"context"
+	"encoding/json"
+	"os"
 	"testing"
 
+	"google.golang.org/protobuf/reflect/protoreflect"
+	tspb "google.golang.org/protobuf/types/known/timestamppb"
+
 	"cosmossdk.io/x/tx/signing/textual"
 )
 
@@ -28,3 +33,71 @@ func FuzzIntValueRendererParse(f *testing.F) {
 		_, _ = ivr.Parse(ctx, []textual.Screen{{Content: input}})
 	})
 }
+
+func FuzzTimestampValueRendererParse(f *testing.F) {
+	if testing.Short() {
+		f.Skip()
+	}
+
+	// 1. Firstly add some seed valid content.
+	f.Add("2006-01-02T15:04:05Z")
+	f.Add("1970-01-01T00:00:00.00000001Z")
+	f.Add("2022-07-14T11:22:20.983Z")
+	f.Add("1969-12-31T23:59:59Z")
+
+	// 2. Now fuzz it.
+	tvr := textual.NewTimestampValueRenderer()
+	ctx := context.Background()
+	f.Fuzz(func(t *testing.T, input string) {
+		_, _ = tvr.Parse(ctx, []textual.Screen{{Content: input}})
+	})
+}
+
+func FuzzTimestampJSONParseToParseRoundTrip(f *testing.F) {
+	// 1. Use the seeds from testdata and mutate them.
+	seed, err := os.ReadFile("./internal/testdata/timestamp.json")
+	if err != nil {
+		f.Fatal(err)
+	}
+	f.Add(seed)
+
+	f.Fuzz(func(t *testing.T, input []byte) {
+		var testCases []timestampJsonTest
+		if err := json.Unmarshal(input, &testCases); err != nil {
+			return
+		}
+
+		for _, tc := range testCases {
+			rend := textual.NewTimestampValueRenderer()
+
+			// If it successfully JSON unmarshals let's test it out.
+			var screens []textual.Screen
+			var err error
+
+			if tc.Proto != nil {
+				screens, err = rend.Format(context.Background(), protoreflect.ValueOf(tc.Proto.ProtoReflect()))
+				if err != nil {
+					continue
+				}
+			}
+
+			val, err := rend.Parse(context.Background(), screens)
+			if err != nil {
+				continue
+			}
+
+			msg := val.Message().Interface()
+			gotTs, ok := msg.(*tspb.Timestamp)
+			if !ok {
+				t.Fatalf("Wrong type for timestamp: %T", msg)
+			}
+			// Please avoid using proto.Equal to compare timestamps given they aren't
+			// in standardized form and will produce false positives for example given input:
+			//  []byte(`[{"proto":{"nanos":1000000000}}]`)
+			// Per issue: https://github.com/cosmos/cosmos-sdk/issues/15761
+			if !gotTs.AsTime().Equal(tc.Proto.AsTime()) {
+				t.Fatalf("Roundtrip mismatch\n\tGot:  %#v\n\tWant: %#v", gotTs, tc.Proto)
+			}
+		}
+	})
+}
diff --git a/x/tx/signing/textual/testdata/fuzz/FuzzIntValueRendererParse/5838cdfae7b16cde b/x/tx/signing/textual/testdata/fuzz/FuzzIntValueRendererParse/5838cdfae7b16cde
new file mode 100644
index 0000000000..64c3abaff8
--- /dev/null
+++ b/x/tx/signing/textual/testdata/fuzz/FuzzIntValueRendererParse/5838cdfae7b16cde
@@ -0,0 +1,2 @@
+go test fuzz v1
+string("")
diff --git a/x/tx/signing/textual/testdata/fuzz/FuzzIntValueRendererParse/e521654378d1371f b/x/tx/signing/textual/testdata/fuzz/FuzzIntValueRendererParse/e521654378d1371f
new file mode 100644
index 0000000000..9272cbf954
--- /dev/null
+++ b/x/tx/signing/textual/testdata/fuzz/FuzzIntValueRendererParse/e521654378d1371f
@@ -0,0 +1,2 @@
+go test fuzz v1
+string("\xb0\x1b\x16d@L0@'")
diff --git a/x/tx/signing/textual/testdata/fuzz/FuzzTimestampJSON/7fee543ff80f1279 b/x/tx/signing/textual/testdata/fuzz/FuzzTimestampJSON/7fee543ff80f1279
new file mode 100644
index 0000000000..7a94f035b2
--- /dev/null
+++ b/x/tx/signing/textual/testdata/fuzz/FuzzTimestampJSON/7fee543ff80f1279
@@ -0,0 +1,2 @@
+go test fuzz v1
+[]byte("[{\"proto\":{\"nAnos\":1000000000}}]")
diff --git a/x/tx/signing/textual/timestamp_test.go b/x/tx/signing/textual/timestamp_test.go
index c700188dcc..c94448b433 100644
--- a/x/tx/signing/textual/timestamp_test.go
+++ b/x/tx/signing/textual/timestamp_test.go
@@ -11,7 +11,6 @@ import (
 	"cosmossdk.io/x/tx/signing/textual"
 	"github.com/stretchr/testify/require"
 
-	"google.golang.org/protobuf/proto"
 	"google.golang.org/protobuf/reflect/protoreflect"
 	dur "google.golang.org/protobuf/types/known/durationpb"
 	tspb "google.golang.org/protobuf/types/known/timestamppb"
@@ -31,12 +30,21 @@ type timestampJsonTest struct {
 	Text  string
 }
 
-func TestTimestampJsonTestcases(t *testing.T) {
+func TestTimestampJsonTestcasesTestData(t *testing.T) {
 	raw, err := os.ReadFile("./internal/testdata/timestamp.json")
 	require.NoError(t, err)
+	testTimestampJsonTestcases(t, raw)
+}
 
+// Tests to ensure that we compare standardized forms of the final timestamppb.Timestamp.
+// Please see issue https://github.com/cosmos/cosmos-sdk/issues/15761
+func TestTimestampJsonTestcasesExtraneousNanos(t *testing.T) {
+	testTimestampJsonTestcases(t, []byte(`[{"proto":{"nAnos":1000000000},"text":"1970-01-01T00:00:01Z"}]`))
+}
+
+func testTimestampJsonTestcases(t *testing.T, raw []byte) {
 	var testcases []timestampJsonTest
-	err = json.Unmarshal(raw, &testcases)
+	err := json.Unmarshal(raw, &testcases)
 	require.NoError(t, err)
 
 	for i, tc := range testcases {
@@ -64,7 +72,11 @@ func TestTimestampJsonTestcases(t *testing.T) {
 			msg := val.Message().Interface()
 			require.IsType(t, &tspb.Timestamp{}, msg)
 			timestamp := msg.(*tspb.Timestamp)
-			require.True(t, proto.Equal(timestamp, tc.Proto))
+			// Please avoid using proto.Equal to compare timestamps given they aren't
+			// in standardized form and will produce false positives for example given input:
+			//  []byte(`[{"proto":{"nanos":1000000000}}]`)
+			// Per issue: https://github.com/cosmos/cosmos-sdk/issues/15761
+			require.True(t, timestamp.AsTime().Equal(tc.Proto.AsTime()))
 		})
 	}
 }