diff --git a/merkle_util_test.go b/merkle_util_test.go
index d9f1435e..faa2a605 100644
--- a/merkle_util_test.go
+++ b/merkle_util_test.go
@@ -223,7 +223,85 @@ func TestGetHistoricalSummariesBlockRootsProofProof(t *testing.T) {
 	}
 
 	historicalSummaryIndex := uint64(271)
-	beaconBlockHeaderToVerifyIndex = 8191 //(6397852 mod 8192)
+	beaconBlockHeaderToVerifyIndex = 8191 //(7421951 mod 8192)
+	beaconBlockHeaderToVerify, err := blockHeader.HashTreeRoot()
+	if err != nil {
+		fmt.Println("error", err)
+	}
+
+	// fmt.Println("THESE SHOULD BE", hex.EncodeToString(beaconBlockHeaderToVerify[:]))
+	// fmt.Println("THE SAME", hex.EncodeToString(beaconBlockHeaderToVerify[:]))
+	// fmt.Println("THESE SHOULD BE", hex.EncodeToString(oldBeaconStateTopLevelRoots.BlockRootsRoot[:]))
+	// fmt.Println("THE SAME", hex.EncodeToString(currentBeaconState.HistoricalSummaries[146].BlockSummaryRoot[:]))
+
+	oldBlockRoots := oldBeaconState.BlockRoots
+
+	historicalSummaryBlockHeaderProof, err := ProveBlockRootAgainstBeaconStateViaHistoricalSummaries(
+		currentBeaconStateTopLevelRoots,
+		currentBeaconState.HistoricalSummaries,
+		oldBlockRoots,
+		historicalSummaryIndex,
+		beaconBlockHeaderToVerifyIndex,
+	)
+
+	if err != nil {
+		fmt.Println("error")
+	}
+
+	currentBeaconStateRoot, _ := currentBeaconState.HashTreeRoot()
+
+	historicalBlockHeaderIndex := historicalSummaryListIndex<<((historicalSummaryListMerkleSubtreeNumLayers+1)+1+(blockRootsMerkleSubtreeNumLayers)) |
+		historicalSummaryIndex<<(1+blockRootsMerkleSubtreeNumLayers) |
+		blockSummaryRootIndex<<(blockRootsMerkleSubtreeNumLayers) | beaconBlockHeaderToVerifyIndex
+
+	flag := ValidateProof(currentBeaconStateRoot, historicalSummaryBlockHeaderProof, beaconBlockHeaderToVerify, historicalBlockHeaderIndex)
+	if flag != true {
+		fmt.Println("error 2")
+	}
+
+	assert.True(t, flag, "Proof %v failed\n")
+}
+
+func TestGetHistoricalSummariesBlockRootsProofProofCapellaAgainstDeneb(t *testing.T) {
+
+	//curl -H "Accept: application/json" https://data.spiceai.io/goerli/beacon/eth/v2/debug/beacon/states/7431952 -o deneb_goerli_slot_7431952.json --header 'X-API-Key: 343035|8b6ddd9b31f54c07b3fc18282b30f61c'
+	currentBeaconStateJSON, err := parseJSONFile("data/deneb_goerli_slot_7431952.json")
+
+	if err != nil {
+		fmt.Println("error parsing currentBeaconStateJSON")
+	}
+
+	//this is not the beacon state of the slot containing the old withdrawal we want to proof but rather
+	// its the state that was merklized to create a historical summary containing the slot that has that withdrawal, ie, 7421952 mod 8192 = 0
+	oldBeaconStateJSON, err := parseJSONFile("data/goerli_slot_6397952.json.json")
+	if err != nil {
+		fmt.Println("error parsing oldBeaconStateJSON")
+	}
+
+	var blockHeader phase0.BeaconBlockHeader
+	//blockHeader, err = ExtractBlockHeader("data/goerli_block_header_6397852.json")
+	blockHeader, err = ExtractBlockHeader("data/deneb_goerli_block_header_7421951.json")
+
+	if err != nil {
+		fmt.Println("blockHeader.UnmarshalJSON error", err)
+	}
+
+	var currentBeaconState deneb.BeaconState
+	var oldBeaconState deneb.BeaconState
+
+	ParseDenebBeaconStateFromJSON(*currentBeaconStateJSON, &currentBeaconState)
+	ParseDenebBeaconStateFromJSON(*oldBeaconStateJSON, &oldBeaconState)
+	fmt.Println("currentBeacon state historical summary lentgh is", len(currentBeaconState.HistoricalSummaries))
+
+	currentBeaconStateTopLevelRoots, _ := ComputeBeaconStateTopLevelRoots(&currentBeaconState)
+	//oldBeaconStateTopLevelRoots, _ := ComputeBeaconStateTopLevelRoots(&oldBeaconState)
+
+	if err != nil {
+		fmt.Println("error")
+	}
+
+	historicalSummaryIndex := uint64(271)
+	beaconBlockHeaderToVerifyIndex = 8191 //(7421951 mod 8192)
 	beaconBlockHeaderToVerify, err := blockHeader.HashTreeRoot()
 	if err != nil {
 		fmt.Println("error", err)