diff --git a/cl/beacon/handler/format.go b/cl/beacon/handler/format.go
index fc938d646..ba734568b 100644
--- a/cl/beacon/handler/format.go
+++ b/cl/beacon/handler/format.go
@@ -68,51 +68,6 @@ func (r *beaconResponse) withVersion(version clparams.StateVersion) (out *beacon
 	return out
 }
 
-//// In case of it being a json we need to also expose finalization, version, etc...
-//type beaconHandlerFn func(r *http.Request) *beaconResponse
-//
-//func beaconHandlerWrapper(fn beaconHandlerFn, supportSSZ bool) func(w http.ResponseWriter, r *http.Request) {
-//	return func(w http.ResponseWriter, r *http.Request) {
-//		accept := r.Header.Get("Accept")
-//		isSSZ := !strings.Contains(accept, "application/json") && strings.Contains(accept, "application/stream-octect")
-//		start := time.Now()
-//		defer func() {
-//			log.Debug("[Beacon API] finished", "method", r.Method, "path", r.URL.Path, "duration", time.Since(start))
-//		}()
-//
-//		resp := fn(r)
-//		if resp.internalError != nil {
-//			http.Error(w, resp.internalError.Error(), http.StatusInternalServerError)
-//			log.Debug("[Beacon API] failed", "method", r.Method, "err", resp.internalError.Error(), "ssz", isSSZ)
-//			return
-//		}
-//
-//		if resp.apiError != nil {
-//			http.Error(w, resp.apiError.err.Error(), resp.apiError.code)
-//			log.Debug("[Beacon API] failed", "method", r.Method, "err", resp.apiError.err.Error(), "ssz", isSSZ)
-//			return
-//		}
-//
-//		if isSSZ && supportSSZ {
-//			data := resp.Data
-//			// SSZ encoding
-//			encoded, err := data.(ssz.Marshaler).EncodeSSZ(nil)
-//			if err != nil {
-//				http.Error(w, err.Error(), http.StatusInternalServerError)
-//				log.Debug("[Beacon API] failed", "method", r.Method, "err", err, "accepted", accept)
-//				return
-//			}
-//			w.Header().Set("Content-Type", "application/octet-stream")
-//			w.Write(encoded)
-//			return
-//		}
-//		w.Header().Set("Content-Type", "application/json")
-//		if err := json.NewEncoder(w).Encode(resp); err != nil {
-//			log.Warn("[Beacon API] failed", "method", r.Method, "err", err, "ssz", isSSZ)
-//		}
-//	}
-//}
-
 type chainTag int
 
 var (
diff --git a/cl/gossip/gossip.go b/cl/gossip/gossip.go
new file mode 100644
index 000000000..05d335273
--- /dev/null
+++ b/cl/gossip/gossip.go
@@ -0,0 +1,25 @@
+package gossip
+
+import (
+	"strconv"
+	"strings"
+)
+
+const (
+	TopicNameBeaconBlock             = "beacon_block"
+	TopicNameBeaconAggregateAndProof = "beacon_aggregate_and_proof"
+	TopicNameVoluntaryExit           = "voluntary_exit"
+	TopicNameProposerSlashing        = "proposer_slashing"
+	TopicNameAttesterSlashing        = "attester_slashing"
+	TopicNameBlsToExecutionChange    = "bls_to_execution_change"
+
+	TopicNamePrefixBlobSidecar = "blob_sidecar_"
+)
+
+func TopicNameBlobSidecar(d int) string {
+	return TopicNamePrefixBlobSidecar + strconv.Itoa(d)
+}
+
+func IsTopicBlobSidecar(d string) bool {
+	return strings.Contains(d, TopicNamePrefixBlobSidecar)
+}
diff --git a/cl/phase1/network/gossip_manager.go b/cl/phase1/network/gossip_manager.go
index abc33f3d6..d7a0543b3 100644
--- a/cl/phase1/network/gossip_manager.go
+++ b/cl/phase1/network/gossip_manager.go
@@ -3,10 +3,12 @@ package network
 import (
 	"context"
 	"fmt"
-	"github.com/ledgerwatch/erigon-lib/common"
 	"sync"
 
+	"github.com/ledgerwatch/erigon-lib/common"
+
 	"github.com/ledgerwatch/erigon/cl/freezer"
+	"github.com/ledgerwatch/erigon/cl/gossip"
 	"github.com/ledgerwatch/erigon/cl/phase1/forkchoice"
 	"github.com/ledgerwatch/erigon/cl/sentinel/peers"
 
@@ -96,8 +98,8 @@ func (g *GossipManager) onRecv(ctx context.Context, data *sentinel.GossipData, l
 	// If the deserialization fails, an error is logged and the loop returns to the next iteration.
 	// If the deserialization is successful, the object is set to the deserialized value and the loop returns to the next iteration.
 	var object ssz.Unmarshaler
-	switch data.Type {
-	case sentinel.GossipType_BeaconBlockGossipType:
+	switch data.Name {
+	case gossip.TopicNameBeaconBlock:
 		object = cltypes.NewSignedBeaconBlock(g.beaconConfig)
 		if err := object.DecodeSSZ(common.CopyBytes(data.Data), int(version)); err != nil {
 			g.sentinel.BanPeer(ctx, data.Peer)
@@ -142,19 +144,19 @@ func (g *GossipManager) onRecv(ctx context.Context, data *sentinel.GossipData, l
 		}
 		g.mu.RUnlock()
 
-	case sentinel.GossipType_VoluntaryExitGossipType:
+	case gossip.TopicNameVoluntaryExit:
 		if err := operationsContract[*cltypes.SignedVoluntaryExit](ctx, g, l, data, int(version), "voluntary exit", g.forkChoice.OnVoluntaryExit); err != nil {
 			return err
 		}
-	case sentinel.GossipType_ProposerSlashingGossipType:
+	case gossip.TopicNameProposerSlashing:
 		if err := operationsContract[*cltypes.ProposerSlashing](ctx, g, l, data, int(version), "proposer slashing", g.forkChoice.OnProposerSlashing); err != nil {
 			return err
 		}
-	case sentinel.GossipType_AttesterSlashingGossipType:
+	case gossip.TopicNameAttesterSlashing:
 		if err := operationsContract[*cltypes.AttesterSlashing](ctx, g, l, data, int(version), "attester slashing", g.forkChoice.OnAttesterSlashing); err != nil {
 			return err
 		}
-	case sentinel.GossipType_BlsToExecutionChangeGossipType:
+	case gossip.TopicNameBlsToExecutionChange:
 		if err := operationsContract[*cltypes.SignedBLSToExecutionChange](ctx, g, l, data, int(version), "bls to execution change", g.forkChoice.OnBlsToExecutionChange); err != nil {
 			return err
 		}
diff --git a/cl/rpc/rpc.go b/cl/rpc/rpc.go
index 0ada88e81..338edaac3 100644
--- a/cl/rpc/rpc.go
+++ b/cl/rpc/rpc.go
@@ -186,7 +186,7 @@ func (b *BeaconRpcP2P) PropagateBlock(block *cltypes.SignedBeaconBlock) error {
 	}
 	_, err = b.sentinel.PublishGossip(b.ctx, &sentinel.GossipData{
 		Data: encoded,
-		Type: sentinel.GossipType_BeaconBlockGossipType,
+		Name: "beacon_block",
 	})
 	return err
 }
diff --git a/cl/sentinel/gossip.go b/cl/sentinel/gossip.go
index 4eb2b01e2..7067d79bf 100644
--- a/cl/sentinel/gossip.go
+++ b/cl/sentinel/gossip.go
@@ -21,6 +21,7 @@ import (
 
 	"github.com/ledgerwatch/erigon-lib/common"
 	"github.com/ledgerwatch/erigon/cl/fork"
+	"github.com/ledgerwatch/erigon/cl/gossip"
 	"github.com/ledgerwatch/log/v3"
 	pubsub "github.com/libp2p/go-libp2p-pubsub"
 	"github.com/libp2p/go-libp2p/core/peer"
@@ -36,50 +37,38 @@ var (
 
 const SSZSnappyCodec = "ssz_snappy"
 
-type TopicName string
-
-const (
-	BeaconBlockTopic             TopicName = "beacon_block"
-	BeaconAggregateAndProofTopic TopicName = "beacon_aggregate_and_proof"
-	VoluntaryExitTopic           TopicName = "voluntary_exit"
-	ProposerSlashingTopic        TopicName = "proposer_slashing"
-	AttesterSlashingTopic        TopicName = "attester_slashing"
-	BlsToExecutionChangeTopic    TopicName = "bls_to_execution_change"
-	BlobSidecarTopic             TopicName = "blob_sidecar_%d" // This topic needs an index
-)
-
 type GossipTopic struct {
-	Name     TopicName
+	Name     string
 	CodecStr string
 }
 
 var BeaconBlockSsz = GossipTopic{
-	Name:     BeaconBlockTopic,
+	Name:     gossip.TopicNameBeaconBlock,
 	CodecStr: SSZSnappyCodec,
 }
 
 var BeaconAggregateAndProofSsz = GossipTopic{
-	Name:     BeaconAggregateAndProofTopic,
+	Name:     gossip.TopicNameBeaconAggregateAndProof,
 	CodecStr: SSZSnappyCodec,
 }
 
 var VoluntaryExitSsz = GossipTopic{
-	Name:     VoluntaryExitTopic,
+	Name:     gossip.TopicNameVoluntaryExit,
 	CodecStr: SSZSnappyCodec,
 }
 
 var ProposerSlashingSsz = GossipTopic{
-	Name:     ProposerSlashingTopic,
+	Name:     gossip.TopicNameProposerSlashing,
 	CodecStr: SSZSnappyCodec,
 }
 
 var AttesterSlashingSsz = GossipTopic{
-	Name:     AttesterSlashingTopic,
+	Name:     gossip.TopicNameAttesterSlashing,
 	CodecStr: SSZSnappyCodec,
 }
 
 var BlsToExecutionChangeSsz = GossipTopic{
-	Name:     BlsToExecutionChangeTopic,
+	Name:     gossip.TopicNameBlsToExecutionChange,
 	CodecStr: SSZSnappyCodec,
 }
 
@@ -105,7 +94,7 @@ func NewGossipManager(
 func GossipSidecarTopics(maxBlobs uint64) (ret []GossipTopic) {
 	for i := uint64(0); i < maxBlobs; i++ {
 		ret = append(ret, GossipTopic{
-			Name:     TopicName(fmt.Sprintf(string(BlobSidecarTopic), i)),
+			Name:     gossip.TopicNameBlobSidecar(int(i)),
 			CodecStr: SSZSnappyCodec,
 		})
 	}
@@ -204,7 +193,7 @@ func (s *Sentinel) SubscribeGossip(topic GossipTopic, opts ...pubsub.TopicOpt) (
 	if err != nil {
 		return nil, fmt.Errorf("failed to join topic %s, err=%w", path, err)
 	}
-	topicScoreParams := s.topicScoreParams(string(topic.Name))
+	topicScoreParams := s.topicScoreParams(topic.Name)
 	if topicScoreParams != nil {
 		sub.topic.SetScoreParams(topicScoreParams)
 	}
@@ -225,7 +214,7 @@ func (s *Sentinel) Unsubscribe(topic GossipTopic, opts ...pubsub.TopicOpt) (err
 
 func (s *Sentinel) topicScoreParams(topic string) *pubsub.TopicScoreParams {
 	switch {
-	case strings.Contains(topic, string(BeaconBlockTopic)):
+	case strings.Contains(topic, gossip.TopicNameBeaconBlock):
 		return s.defaultBlockTopicParams()
 	/*case strings.Contains(topic, GossipAggregateAndProofMessage):
 	return defaultAggregateTopicParams(activeValidators), nil
@@ -334,14 +323,14 @@ func (s *GossipSubscription) Close() {
 }
 
 type GossipMessage struct {
-	From  peer.ID
-	Topic TopicName
-	Data  []byte
+	From      peer.ID
+	TopicName string
+	Data      []byte
 }
 
 // this is a helper to begin running the gossip subscription.
 // function should not be used outside of the constructor for gossip subscription
-func (s *GossipSubscription) run(ctx context.Context, sub *pubsub.Subscription, topic string) {
+func (s *GossipSubscription) run(ctx context.Context, sub *pubsub.Subscription, topicName string) {
 	defer func() {
 		if r := recover(); r != nil {
 			log.Error("[Sentinel Gossip] Message Handler Crashed", "err", r)
@@ -359,16 +348,16 @@ func (s *GossipSubscription) run(ctx context.Context, sub *pubsub.Subscription,
 				if errors.Is(err, context.Canceled) {
 					return
 				}
-				log.Warn("[Sentinel] fail to decode gossip packet", "err", err, "topic", topic)
+				log.Warn("[Sentinel] fail to decode gossip packet", "err", err, "topicName", topicName)
 				return
 			}
 			if msg.GetFrom() == s.host {
 				continue
 			}
 			s.ch <- &GossipMessage{
-				From:  msg.GetFrom(),
-				Topic: TopicName(topic),
-				Data:  common.Copy(msg.Data),
+				From:      msg.GetFrom(),
+				TopicName: topicName,
+				Data:      common.Copy(msg.Data),
 			}
 		}
 	}
diff --git a/cl/sentinel/sentinel_gossip_test.go b/cl/sentinel/sentinel_gossip_test.go
index a5fcac8a1..5ef8b2082 100644
--- a/cl/sentinel/sentinel_gossip_test.go
+++ b/cl/sentinel/sentinel_gossip_test.go
@@ -85,7 +85,7 @@ func TestSentinelGossipOnHardFork(t *testing.T) {
 
 	ans := <-ch
 	require.Equal(t, ans.Data, msg)
-	previousTopic = string(ans.Topic)
+	previousTopic = ans.TopicName
 
 	bcfg.AltairForkEpoch = clparams.MainnetBeaconConfig.AltairForkEpoch
 	bcfg.InitializeForkSchedule()
@@ -94,12 +94,12 @@ func TestSentinelGossipOnHardFork(t *testing.T) {
 	msg = []byte("hello1")
 	go func() {
 		// delay to make sure that the connection is established
-		sub1 = sentinel1.subManager.GetMatchingSubscription(string(BeaconBlockSsz.Name))
+		sub1 = sentinel1.subManager.GetMatchingSubscription(BeaconBlockSsz.Name)
 		sub1.Publish(msg)
 	}()
 
 	ans = <-ch
 	require.Equal(t, ans.Data, msg)
-	require.NotEqual(t, previousTopic, ans.Topic)
+	require.NotEqual(t, previousTopic, ans.TopicName)
 
 }
diff --git a/cl/sentinel/service/notifiers.go b/cl/sentinel/service/notifiers.go
index 8af9b991a..7297dc818 100644
--- a/cl/sentinel/service/notifiers.go
+++ b/cl/sentinel/service/notifiers.go
@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"sync"
 
-	"github.com/ledgerwatch/erigon-lib/gointerfaces/sentinel"
+	"github.com/ledgerwatch/erigon/cl/gossip"
 )
 
 const (
@@ -12,10 +12,9 @@ const (
 )
 
 type gossipObject struct {
-	data      []byte              // gossip data
-	t         sentinel.GossipType // determine which gossip message we are notifying of
-	pid       string              // pid is the peer id of the sender
-	blobIndex *uint32             // index of the blob
+	data []byte // gossip data
+	t    string // determine which gossip message we are notifying of
+	pid  string // pid is the peer id of the sender
 }
 
 type gossipNotifier struct {
@@ -30,7 +29,7 @@ func newGossipNotifier() *gossipNotifier {
 	}
 }
 
-func (g *gossipNotifier) notify(t sentinel.GossipType, data []byte, pid string) {
+func (g *gossipNotifier) notify(t string, data []byte, pid string) {
 	g.mu.Lock()
 	defer g.mu.Unlock()
 
@@ -43,18 +42,15 @@ func (g *gossipNotifier) notify(t sentinel.GossipType, data []byte, pid string)
 	}
 }
 
-func (g *gossipNotifier) notifyBlob(t sentinel.GossipType, data []byte, pid string, blobIndex int) {
+func (g *gossipNotifier) notifyBlob(data []byte, pid string, blobIndex int) {
 	g.mu.Lock()
 	defer g.mu.Unlock()
 
-	index := new(uint32)
-	*index = uint32(blobIndex)
 	for _, ch := range g.notifiers {
 		ch <- gossipObject{
-			data:      data,
-			t:         t,
-			pid:       pid,
-			blobIndex: index,
+			data: data,
+			t:    gossip.TopicNameBlobSidecar(blobIndex),
+			pid:  pid,
 		}
 	}
 }
diff --git a/cl/sentinel/service/service.go b/cl/sentinel/service/service.go
index 850157ea0..d43b40cb6 100644
--- a/cl/sentinel/service/service.go
+++ b/cl/sentinel/service/service.go
@@ -3,7 +3,6 @@ package service
 import (
 	"bytes"
 	"context"
-	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -13,6 +12,7 @@ import (
 	"time"
 
 	"github.com/ledgerwatch/erigon-lib/diagnostics"
+	"github.com/ledgerwatch/erigon/cl/gossip"
 	"github.com/ledgerwatch/erigon/cl/sentinel"
 	"github.com/ledgerwatch/erigon/cl/sentinel/httpreqresp"
 
@@ -50,7 +50,7 @@ func NewSentinelServer(ctx context.Context, sentinel *sentinel.Sentinel, logger
 // extractBlobSideCarIndex takes a topic and extract the blob sidecar
 func extractBlobSideCarIndex(topic string) int {
 	// compute the index prefixless
-	startIndex := strings.Index(topic, string(sentinel.BlobSidecarTopic)) + len(sentinel.BlobSidecarTopic)
+	startIndex := strings.Index(topic, gossip.TopicNamePrefixBlobSidecar) + len(gossip.TopicNamePrefixBlobSidecar)
 	endIndex := strings.Index(topic[:startIndex], "/")
 	blobIndex, err := strconv.Atoi(topic[startIndex:endIndex])
 	if err != nil {
@@ -77,28 +77,30 @@ func (s *SentinelServer) PublishGossip(_ context.Context, msg *sentinelrpc.Gossi
 	// Snappify payload before sending it to gossip
 	compressedData := utils.CompressSnappy(msg.Data)
 
-	s.trackPeerStatistics(msg.GetPeer().Pid, false, msg.Type.String(), "unknown", len(compressedData))
+	s.trackPeerStatistics(msg.GetPeer().Pid, false, msg.Name, "unknown", len(compressedData))
 
 	var subscription *sentinel.GossipSubscription
 
-	switch msg.Type {
-	case sentinelrpc.GossipType_BeaconBlockGossipType:
-		subscription = manager.GetMatchingSubscription(string(sentinel.BeaconBlockTopic))
-	case sentinelrpc.GossipType_AggregateAndProofGossipType:
-		subscription = manager.GetMatchingSubscription(string(sentinel.BeaconAggregateAndProofTopic))
-	case sentinelrpc.GossipType_VoluntaryExitGossipType:
-		subscription = manager.GetMatchingSubscription(string(sentinel.VoluntaryExitTopic))
-	case sentinelrpc.GossipType_ProposerSlashingGossipType:
-		subscription = manager.GetMatchingSubscription(string(sentinel.ProposerSlashingTopic))
-	case sentinelrpc.GossipType_AttesterSlashingGossipType:
-		subscription = manager.GetMatchingSubscription(string(sentinel.AttesterSlashingTopic))
-	case sentinelrpc.GossipType_BlobSidecarType:
-		if msg.BlobIndex == nil {
-			return &sentinelrpc.EmptyMessage{}, errors.New("cannot publish sidecar blob with no index")
-		}
-		subscription = manager.GetMatchingSubscription(fmt.Sprintf(string(sentinel.BlobSidecarTopic), *msg.BlobIndex))
+	// TODO: this is still wrong... we should build a subscription here to match exactly, meaning that downstream consumers should be
+	// in charge of keeping track of fork id.
+	switch msg.Name {
+	case gossip.TopicNameBeaconBlock:
+		subscription = manager.GetMatchingSubscription(msg.Name)
+	case gossip.TopicNameBeaconAggregateAndProof:
+		subscription = manager.GetMatchingSubscription(msg.Name)
+	case gossip.TopicNameVoluntaryExit:
+		subscription = manager.GetMatchingSubscription(msg.Name)
+	case gossip.TopicNameProposerSlashing:
+		subscription = manager.GetMatchingSubscription(msg.Name)
+	case gossip.TopicNameAttesterSlashing:
+		subscription = manager.GetMatchingSubscription(msg.Name)
 	default:
-		return &sentinelrpc.EmptyMessage{}, nil
+		switch {
+		case gossip.IsTopicBlobSidecar(msg.Name):
+			subscription = manager.GetMatchingSubscription(msg.Name)
+		default:
+			return &sentinelrpc.EmptyMessage{}, nil
+		}
 	}
 	if subscription == nil {
 		return &sentinelrpc.EmptyMessage{}, nil
@@ -122,11 +124,10 @@ func (s *SentinelServer) SubscribeGossip(_ *sentinelrpc.EmptyMessage, stream sen
 		case packet := <-ch:
 			if err := stream.Send(&sentinelrpc.GossipData{
 				Data: packet.data,
-				Type: packet.t,
+				Name: packet.t,
 				Peer: &sentinelrpc.Peer{
 					Pid: packet.pid,
 				},
-				BlobIndex: packet.blobIndex,
 			}); err != nil {
 				s.logger.Warn("[Sentinel] Could not relay gossip packet", "reason", err)
 			}
@@ -274,10 +275,10 @@ func (s *SentinelServer) ListenToGossip() {
 
 func (s *SentinelServer) handleGossipPacket(pkt *sentinel.GossipMessage) error {
 	var err error
-	s.logger.Trace("[Sentinel Gossip] Received Packet", "topic", pkt.Topic)
+	s.logger.Trace("[Sentinel Gossip] Received Packet", "topic", pkt.TopicName)
 
 	data := pkt.Data
-	topic := string(pkt.Topic)
+	topic := pkt.TopicName
 	// If we use snappy codec then decompress it accordingly.
 	if strings.Contains(topic, sentinel.SSZSnappyCodec) {
 		data, err = utils.DecompressSnappy(data)
@@ -294,21 +295,21 @@ func (s *SentinelServer) handleGossipPacket(pkt *sentinel.GossipMessage) error {
 	s.trackPeerStatistics(string(textPid), true, msgType, msgCap, len(data))
 
 	// Check to which gossip it belongs to.
-	if strings.Contains(topic, string(sentinel.BeaconBlockTopic)) {
-		s.gossipNotifier.notify(sentinelrpc.GossipType_BeaconBlockGossipType, data, string(textPid))
-	} else if strings.Contains(topic, string(sentinel.BeaconAggregateAndProofTopic)) {
-		s.gossipNotifier.notify(sentinelrpc.GossipType_AggregateAndProofGossipType, data, string(textPid))
-	} else if strings.Contains(topic, string(sentinel.VoluntaryExitTopic)) {
-		s.gossipNotifier.notify(sentinelrpc.GossipType_VoluntaryExitGossipType, data, string(textPid))
-	} else if strings.Contains(topic, string(sentinel.ProposerSlashingTopic)) {
-		s.gossipNotifier.notify(sentinelrpc.GossipType_ProposerSlashingGossipType, data, string(textPid))
-	} else if strings.Contains(topic, string(sentinel.AttesterSlashingTopic)) {
-		s.gossipNotifier.notify(sentinelrpc.GossipType_AttesterSlashingGossipType, data, string(textPid))
-	} else if strings.Contains(topic, string(sentinel.BlsToExecutionChangeTopic)) {
-		s.gossipNotifier.notify(sentinelrpc.GossipType_BlsToExecutionChangeGossipType, data, string(textPid))
-	} else if strings.Contains(topic, string(sentinel.BlobSidecarTopic)) {
+	if strings.Contains(topic, string(gossip.TopicNameBeaconBlock)) {
+		s.gossipNotifier.notify(gossip.TopicNameBeaconBlock, data, string(textPid))
+	} else if strings.Contains(topic, string(gossip.TopicNameBeaconAggregateAndProof)) {
+		s.gossipNotifier.notify(gossip.TopicNameBeaconAggregateAndProof, data, string(textPid))
+	} else if strings.Contains(topic, string(gossip.TopicNameVoluntaryExit)) {
+		s.gossipNotifier.notify(gossip.TopicNameVoluntaryExit, data, string(textPid))
+	} else if strings.Contains(topic, string(gossip.TopicNameProposerSlashing)) {
+		s.gossipNotifier.notify(gossip.TopicNameProposerSlashing, data, string(textPid))
+	} else if strings.Contains(topic, string(gossip.TopicNameAttesterSlashing)) {
+		s.gossipNotifier.notify(gossip.TopicNameAttesterSlashing, data, string(textPid))
+	} else if strings.Contains(topic, string(gossip.TopicNameBlsToExecutionChange)) {
+		s.gossipNotifier.notify(gossip.TopicNameBlsToExecutionChange, data, string(textPid))
+	} else if gossip.IsTopicBlobSidecar(topic) {
 		// extract the index
-		s.gossipNotifier.notifyBlob(sentinelrpc.GossipType_BlobSidecarType, data, string(textPid), extractBlobSideCarIndex(topic))
+		s.gossipNotifier.notifyBlob(data, string(textPid), extractBlobSideCarIndex(topic))
 	}
 	return nil
 }
diff --git a/erigon-lib/gointerfaces/downloader/downloader_grpc.pb.go b/erigon-lib/gointerfaces/downloader/downloader_grpc.pb.go
index d3a0468ff..369c9b494 100644
--- a/erigon-lib/gointerfaces/downloader/downloader_grpc.pb.go
+++ b/erigon-lib/gointerfaces/downloader/downloader_grpc.pb.go
@@ -31,7 +31,7 @@ const (
 //
 // For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
 type DownloaderClient interface {
-	// Erigon "download once" - means restart/upgrade will not download files (and will be fast)
+	// Erigon "download once" - means restart/upgrade/downgrade will not download files (and will be fast)
 	// After "download once" - Erigon will produce and seed new files
 	// Downloader will able: seed new files (already existing on FS), download uncomplete parts of existing files (if Verify found some bad parts)
 	ProhibitNewDownloads(ctx context.Context, in *ProhibitNewDownloadsRequest, opts ...grpc.CallOption) (*emptypb.Empty, error)
@@ -101,7 +101,7 @@ func (c *downloaderClient) Stats(ctx context.Context, in *StatsRequest, opts ...
 // All implementations must embed UnimplementedDownloaderServer
 // for forward compatibility
 type DownloaderServer interface {
-	// Erigon "download once" - means restart/upgrade will not download files (and will be fast)
+	// Erigon "download once" - means restart/upgrade/downgrade will not download files (and will be fast)
 	// After "download once" - Erigon will produce and seed new files
 	// Downloader will able: seed new files (already existing on FS), download uncomplete parts of existing files (if Verify found some bad parts)
 	ProhibitNewDownloads(context.Context, *ProhibitNewDownloadsRequest) (*emptypb.Empty, error)
diff --git a/erigon-lib/gointerfaces/sentinel/sentinel.pb.go b/erigon-lib/gointerfaces/sentinel/sentinel.pb.go
index 0fc32fe89..35477c388 100644
--- a/erigon-lib/gointerfaces/sentinel/sentinel.pb.go
+++ b/erigon-lib/gointerfaces/sentinel/sentinel.pb.go
@@ -21,68 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-type GossipType int32
-
-const (
-	// Global gossip topics.
-	GossipType_BeaconBlockGossipType          GossipType = 0
-	GossipType_AggregateAndProofGossipType    GossipType = 1
-	GossipType_VoluntaryExitGossipType        GossipType = 2
-	GossipType_ProposerSlashingGossipType     GossipType = 3
-	GossipType_AttesterSlashingGossipType     GossipType = 4
-	GossipType_BlobSidecarType                GossipType = 5
-	GossipType_BlsToExecutionChangeGossipType GossipType = 6
-)
-
-// Enum value maps for GossipType.
-var (
-	GossipType_name = map[int32]string{
-		0: "BeaconBlockGossipType",
-		1: "AggregateAndProofGossipType",
-		2: "VoluntaryExitGossipType",
-		3: "ProposerSlashingGossipType",
-		4: "AttesterSlashingGossipType",
-		5: "BlobSidecarType",
-		6: "BlsToExecutionChangeGossipType",
-	}
-	GossipType_value = map[string]int32{
-		"BeaconBlockGossipType":          0,
-		"AggregateAndProofGossipType":    1,
-		"VoluntaryExitGossipType":        2,
-		"ProposerSlashingGossipType":     3,
-		"AttesterSlashingGossipType":     4,
-		"BlobSidecarType":                5,
-		"BlsToExecutionChangeGossipType": 6,
-	}
-)
-
-func (x GossipType) Enum() *GossipType {
-	p := new(GossipType)
-	*p = x
-	return p
-}
-
-func (x GossipType) String() string {
-	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
-}
-
-func (GossipType) Descriptor() protoreflect.EnumDescriptor {
-	return file_p2psentinel_sentinel_proto_enumTypes[0].Descriptor()
-}
-
-func (GossipType) Type() protoreflect.EnumType {
-	return &file_p2psentinel_sentinel_proto_enumTypes[0]
-}
-
-func (x GossipType) Number() protoreflect.EnumNumber {
-	return protoreflect.EnumNumber(x)
-}
-
-// Deprecated: Use GossipType.Descriptor instead.
-func (GossipType) EnumDescriptor() ([]byte, []int) {
-	return file_p2psentinel_sentinel_proto_rawDescGZIP(), []int{0}
-}
-
 type EmptyMessage struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -173,10 +111,9 @@ type GossipData struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Data      []byte     `protobuf:"bytes,1,opt,name=data,proto3" json:"data,omitempty"` // SSZ encoded data
-	Type      GossipType `protobuf:"varint,2,opt,name=type,proto3,enum=sentinel.GossipType" json:"type,omitempty"`
-	Peer      *Peer      `protobuf:"bytes,3,opt,name=peer,proto3,oneof" json:"peer,omitempty"`
-	BlobIndex *uint32    `protobuf:"varint,4,opt,name=blob_index,json=blobIndex,proto3,oneof" json:"blob_index,omitempty"` // Blob identifier for EIP4844
+	Data []byte `protobuf:"bytes,1,opt,name=data,proto3" json:"data,omitempty"` // SSZ encoded data
+	Name string `protobuf:"bytes,2,opt,name=name,proto3" json:"name,omitempty"`
+	Peer *Peer  `protobuf:"bytes,3,opt,name=peer,proto3,oneof" json:"peer,omitempty"`
 }
 
 func (x *GossipData) Reset() {
@@ -218,11 +155,11 @@ func (x *GossipData) GetData() []byte {
 	return nil
 }
 
-func (x *GossipData) GetType() GossipType {
+func (x *GossipData) GetName() string {
 	if x != nil {
-		return x.Type
+		return x.Name
 	}
-	return GossipType_BeaconBlockGossipType
+	return ""
 }
 
 func (x *GossipData) GetPeer() *Peer {
@@ -232,13 +169,6 @@ func (x *GossipData) GetPeer() *Peer {
 	return nil
 }
 
-func (x *GossipData) GetBlobIndex() uint32 {
-	if x != nil && x.BlobIndex != nil {
-		return *x.BlobIndex
-	}
-	return 0
-}
-
 type Status struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -492,92 +422,73 @@ var file_p2psentinel_sentinel_proto_rawDesc = []byte{
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+	0x73, 0x65, 0x6e, 0x74, 0x69, 0x6e, 0x65, 0x6c, 0x3b, 0x73, 0x65, 0x6e, 0x74, 0x69, 0x6e, 0x65,
+	0x6c, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -592,48 +503,45 @@ func file_p2psentinel_sentinel_proto_rawDescGZIP() []byte {
 	return file_p2psentinel_sentinel_proto_rawDescData
 }
 
-var file_p2psentinel_sentinel_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
 var file_p2psentinel_sentinel_proto_msgTypes = make([]protoimpl.MessageInfo, 7)
 var file_p2psentinel_sentinel_proto_goTypes = []interface{}{
-	(GossipType)(0),      // 0: sentinel.GossipType
-	(*EmptyMessage)(nil), // 1: sentinel.EmptyMessage
-	(*Peer)(nil),         // 2: sentinel.Peer
-	(*GossipData)(nil),   // 3: sentinel.GossipData
-	(*Status)(nil),       // 4: sentinel.Status
-	(*PeerCount)(nil),    // 5: sentinel.PeerCount
-	(*RequestData)(nil),  // 6: sentinel.RequestData
-	(*ResponseData)(nil), // 7: sentinel.ResponseData
-	(*types.H256)(nil),   // 8: types.H256
+	(*EmptyMessage)(nil), // 0: sentinel.EmptyMessage
+	(*Peer)(nil),         // 1: sentinel.Peer
+	(*GossipData)(nil),   // 2: sentinel.GossipData
+	(*Status)(nil),       // 3: sentinel.Status
+	(*PeerCount)(nil),    // 4: sentinel.PeerCount
+	(*RequestData)(nil),  // 5: sentinel.RequestData
+	(*ResponseData)(nil), // 6: sentinel.ResponseData
+	(*types.H256)(nil),   // 7: types.H256
 }
 var file_p2psentinel_sentinel_proto_depIdxs = []int32{
-	0,  // 0: sentinel.GossipData.type:type_name -> sentinel.GossipType
-	2,  // 1: sentinel.GossipData.peer:type_name -> sentinel.Peer
-	8,  // 2: sentinel.Status.finalized_root:type_name -> types.H256
-	8,  // 3: sentinel.Status.head_root:type_name -> types.H256
-	2,  // 4: sentinel.ResponseData.peer:type_name -> sentinel.Peer
-	1,  // 5: sentinel.Sentinel.SubscribeGossip:input_type -> sentinel.EmptyMessage
-	6,  // 6: sentinel.Sentinel.SendRequest:input_type -> sentinel.RequestData
-	4,  // 7: sentinel.Sentinel.SetStatus:input_type -> sentinel.Status
-	1,  // 8: sentinel.Sentinel.GetPeers:input_type -> sentinel.EmptyMessage
-	2,  // 9: sentinel.Sentinel.BanPeer:input_type -> sentinel.Peer
-	2,  // 10: sentinel.Sentinel.UnbanPeer:input_type -> sentinel.Peer
-	2,  // 11: sentinel.Sentinel.PenalizePeer:input_type -> sentinel.Peer
-	2,  // 12: sentinel.Sentinel.RewardPeer:input_type -> sentinel.Peer
-	3,  // 13: sentinel.Sentinel.PublishGossip:input_type -> sentinel.GossipData
-	3,  // 14: sentinel.Sentinel.SubscribeGossip:output_type -> sentinel.GossipData
-	7,  // 15: sentinel.Sentinel.SendRequest:output_type -> sentinel.ResponseData
-	1,  // 16: sentinel.Sentinel.SetStatus:output_type -> sentinel.EmptyMessage
-	5,  // 17: sentinel.Sentinel.GetPeers:output_type -> sentinel.PeerCount
-	1,  // 18: sentinel.Sentinel.BanPeer:output_type -> sentinel.EmptyMessage
-	1,  // 19: sentinel.Sentinel.UnbanPeer:output_type -> sentinel.EmptyMessage
-	1,  // 20: sentinel.Sentinel.PenalizePeer:output_type -> sentinel.EmptyMessage
-	1,  // 21: sentinel.Sentinel.RewardPeer:output_type -> sentinel.EmptyMessage
-	1,  // 22: sentinel.Sentinel.PublishGossip:output_type -> sentinel.EmptyMessage
-	14, // [14:23] is the sub-list for method output_type
-	5,  // [5:14] is the sub-list for method input_type
-	5,  // [5:5] is the sub-list for extension type_name
-	5,  // [5:5] is the sub-list for extension extendee
-	0,  // [0:5] is the sub-list for field type_name
+	1,  // 0: sentinel.GossipData.peer:type_name -> sentinel.Peer
+	7,  // 1: sentinel.Status.finalized_root:type_name -> types.H256
+	7,  // 2: sentinel.Status.head_root:type_name -> types.H256
+	1,  // 3: sentinel.ResponseData.peer:type_name -> sentinel.Peer
+	0,  // 4: sentinel.Sentinel.SubscribeGossip:input_type -> sentinel.EmptyMessage
+	5,  // 5: sentinel.Sentinel.SendRequest:input_type -> sentinel.RequestData
+	3,  // 6: sentinel.Sentinel.SetStatus:input_type -> sentinel.Status
+	0,  // 7: sentinel.Sentinel.GetPeers:input_type -> sentinel.EmptyMessage
+	1,  // 8: sentinel.Sentinel.BanPeer:input_type -> sentinel.Peer
+	1,  // 9: sentinel.Sentinel.UnbanPeer:input_type -> sentinel.Peer
+	1,  // 10: sentinel.Sentinel.PenalizePeer:input_type -> sentinel.Peer
+	1,  // 11: sentinel.Sentinel.RewardPeer:input_type -> sentinel.Peer
+	2,  // 12: sentinel.Sentinel.PublishGossip:input_type -> sentinel.GossipData
+	2,  // 13: sentinel.Sentinel.SubscribeGossip:output_type -> sentinel.GossipData
+	6,  // 14: sentinel.Sentinel.SendRequest:output_type -> sentinel.ResponseData
+	0,  // 15: sentinel.Sentinel.SetStatus:output_type -> sentinel.EmptyMessage
+	4,  // 16: sentinel.Sentinel.GetPeers:output_type -> sentinel.PeerCount
+	0,  // 17: sentinel.Sentinel.BanPeer:output_type -> sentinel.EmptyMessage
+	0,  // 18: sentinel.Sentinel.UnbanPeer:output_type -> sentinel.EmptyMessage
+	0,  // 19: sentinel.Sentinel.PenalizePeer:output_type -> sentinel.EmptyMessage
+	0,  // 20: sentinel.Sentinel.RewardPeer:output_type -> sentinel.EmptyMessage
+	0,  // 21: sentinel.Sentinel.PublishGossip:output_type -> sentinel.EmptyMessage
+	13, // [13:22] is the sub-list for method output_type
+	4,  // [4:13] is the sub-list for method input_type
+	4,  // [4:4] is the sub-list for extension type_name
+	4,  // [4:4] is the sub-list for extension extendee
+	0,  // [0:4] is the sub-list for field type_name
 }
 
 func init() { file_p2psentinel_sentinel_proto_init() }
@@ -733,14 +641,13 @@ func file_p2psentinel_sentinel_proto_init() {
 		File: protoimpl.DescBuilder{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_p2psentinel_sentinel_proto_rawDesc,
-			NumEnums:      1,
+			NumEnums:      0,
 			NumMessages:   7,
 			NumExtensions: 0,
 			NumServices:   1,
 		},
 		GoTypes:           file_p2psentinel_sentinel_proto_goTypes,
 		DependencyIndexes: file_p2psentinel_sentinel_proto_depIdxs,
-		EnumInfos:         file_p2psentinel_sentinel_proto_enumTypes,
 		MessageInfos:      file_p2psentinel_sentinel_proto_msgTypes,
 	}.Build()
 	File_p2psentinel_sentinel_proto = out.File
diff --git a/go.mod b/go.mod
index 89c44138b..c27a292f7 100644
--- a/go.mod
+++ b/go.mod
@@ -5,7 +5,6 @@ go 1.20
 require (
 	github.com/erigontech/mdbx-go v0.27.21
 	github.com/erigontech/silkworm-go v0.10.0
-	github.com/ledgerwatch/erigon-lib v1.0.0
 	github.com/ledgerwatch/log/v3 v3.9.0
 	github.com/ledgerwatch/secp256k1 v1.0.0
 )
@@ -58,6 +57,7 @@ require (
 	github.com/json-iterator/go v1.1.12
 	github.com/julienschmidt/httprouter v1.3.0
 	github.com/klauspost/compress v1.17.3
+	github.com/ledgerwatch/erigon-lib v1.0.0
 	github.com/libp2p/go-libp2p v0.31.0
 	github.com/libp2p/go-libp2p-mplex v0.9.0
 	github.com/libp2p/go-libp2p-pubsub v0.9.3