diff --git a/pkg/cannon/deriver/beacon/eth/v1/beacon_blob.go b/pkg/cannon/deriver/beacon/eth/v1/beacon_blob.go
index 41459674..1eccd435 100644
--- a/pkg/cannon/deriver/beacon/eth/v1/beacon_blob.go
+++ b/pkg/cannon/deriver/beacon/eth/v1/beacon_blob.go
@@ -2,6 +2,7 @@ package v1
 
 import (
 	"context"
+	"encoding/hex"
 	"fmt"
 	"time"
 
@@ -232,7 +233,7 @@ func (b *BeaconBlobDeriver) createEventFromBlob(ctx context.Context, blob *deneb
 		Data: &xatu.DecoratedEvent_EthV1BeaconBlockBlobSidecar{
 			EthV1BeaconBlockBlobSidecar: &xatuethv1.BlobSidecar{
 				Slot:            &wrapperspb.UInt64Value{Value: uint64(blob.Slot)},
-				Blob:            blob.Blob[:],
+				Blob:            fmt.Sprintf("0x%s", hex.EncodeToString(blob.Blob[:])),
 				Index:           &wrapperspb.UInt64Value{Value: uint64(blob.Index)},
 				BlockRoot:       blob.BlockRoot.String(),
 				BlockParentRoot: blob.BlockParentRoot.String(),
diff --git a/pkg/proto/eth/v1/blob.pb.go b/pkg/proto/eth/v1/blob.pb.go
index 246c5b87..4eacdc89 100644
--- a/pkg/proto/eth/v1/blob.pb.go
+++ b/pkg/proto/eth/v1/blob.pb.go
@@ -26,7 +26,7 @@ type BlobSidecar struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Blob            []byte                  `protobuf:"bytes,1,opt,name=blob,proto3" json:"blob,omitempty"`
+	Blob            string                  `protobuf:"bytes,1,opt,name=blob,proto3" json:"blob,omitempty"`
 	KzgCommitment   string                  `protobuf:"bytes,2,opt,name=kzg_commitment,proto3" json:"kzg_commitment,omitempty"`
 	KzgProof        string                  `protobuf:"bytes,3,opt,name=kzg_proof,proto3" json:"kzg_proof,omitempty"`
 	Slot            *wrapperspb.UInt64Value `protobuf:"bytes,4,opt,name=slot,proto3" json:"slot,omitempty"`
@@ -68,11 +68,11 @@ func (*BlobSidecar) Descriptor() ([]byte, []int) {
 	return file_pkg_proto_eth_v1_blob_proto_rawDescGZIP(), []int{0}
 }
 
-func (x *BlobSidecar) GetBlob() []byte {
+func (x *BlobSidecar) GetBlob() string {
 	if x != nil {
 		return x.Blob
 	}
-	return nil
+	return ""
 }
 
 func (x *BlobSidecar) GetKzgCommitment() string {
@@ -133,7 +133,7 @@ var file_pkg_proto_eth_v1_blob_proto_rawDesc = []byte{
 	0x6c, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x77, 0x72, 0x61, 0x70,
 	0x70, 0x65, 0x72, 0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0xe1, 0x02, 0x0a, 0x0b, 0x42,
 	0x6c, 0x6f, 0x62, 0x53, 0x69, 0x64, 0x65, 0x63, 0x61, 0x72, 0x12, 0x12, 0x0a, 0x04, 0x62, 0x6c,
-	0x6f, 0x62, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0c, 0x52, 0x04, 0x62, 0x6c, 0x6f, 0x62, 0x12, 0x26,
+	0x6f, 0x62, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x62, 0x6c, 0x6f, 0x62, 0x12, 0x26,
 	0x0a, 0x0e, 0x6b, 0x7a, 0x67, 0x5f, 0x63, 0x6f, 0x6d, 0x6d, 0x69, 0x74, 0x6d, 0x65, 0x6e, 0x74,
 	0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0e, 0x6b, 0x7a, 0x67, 0x5f, 0x63, 0x6f, 0x6d, 0x6d,
 	0x69, 0x74, 0x6d, 0x65, 0x6e, 0x74, 0x12, 0x1c, 0x0a, 0x09, 0x6b, 0x7a, 0x67, 0x5f, 0x70, 0x72,
diff --git a/pkg/proto/eth/v1/blob.proto b/pkg/proto/eth/v1/blob.proto
index 8031a9f5..b1f22002 100644
--- a/pkg/proto/eth/v1/blob.proto
+++ b/pkg/proto/eth/v1/blob.proto
@@ -7,7 +7,7 @@ import "google/protobuf/wrappers.proto";
 option go_package = "github.com/ethpandaops/xatu/pkg/proto/eth/v1";
 
 message BlobSidecar {
-  bytes blob = 1;
+  string blob = 1;
   string kzg_commitment = 2 [ json_name = "kzg_commitment" ];
   string kzg_proof = 3 [ json_name = "kzg_proof" ];
   google.protobuf.UInt64Value slot = 4;