diff --git a/api/grpc/relay/relay.pb.go b/api/grpc/relay/relay.pb.go
index a9d69a5fe..72dc48fbc 100644
--- a/api/grpc/relay/relay.pb.go
+++ b/api/grpc/relay/relay.pb.go
@@ -74,152 +74,6 @@ func (RelayError) EnumDescriptor() ([]byte, []int) {
 	return file_relay_relay_proto_rawDescGZIP(), []int{0}
 }
 
-// A request to upload one or more blobs.
-type UploadBlobsRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	// The blobs to upload.
-	Blobs []*BlobData `protobuf:"bytes,1,rep,name=blobs,proto3" json:"blobs,omitempty"`
-}
-
-func (x *UploadBlobsRequest) Reset() {
-	*x = UploadBlobsRequest{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_relay_relay_proto_msgTypes[0]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *UploadBlobsRequest) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*UploadBlobsRequest) ProtoMessage() {}
-
-func (x *UploadBlobsRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_relay_relay_proto_msgTypes[0]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use UploadBlobsRequest.ProtoReflect.Descriptor instead.
-func (*UploadBlobsRequest) Descriptor() ([]byte, []int) {
-	return file_relay_relay_proto_rawDescGZIP(), []int{0}
-}
-
-func (x *UploadBlobsRequest) GetBlobs() []*BlobData {
-	if x != nil {
-		return x.Blobs
-	}
-	return nil
-}
-
-// A blob, its header, and its encoded chunks.
-type BlobData struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	// The unencoded blob data.
-	Blob []byte `protobuf:"bytes,1,opt,name=blob,proto3" json:"blob,omitempty"`
-	// The encoded blob chunks.
-	Chunks []*common.ChunkData `protobuf:"bytes,2,rep,name=chunks,proto3" json:"chunks,omitempty"`
-}
-
-func (x *BlobData) Reset() {
-	*x = BlobData{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_relay_relay_proto_msgTypes[1]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *BlobData) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*BlobData) ProtoMessage() {}
-
-func (x *BlobData) ProtoReflect() protoreflect.Message {
-	mi := &file_relay_relay_proto_msgTypes[1]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use BlobData.ProtoReflect.Descriptor instead.
-func (*BlobData) Descriptor() ([]byte, []int) {
-	return file_relay_relay_proto_rawDescGZIP(), []int{1}
-}
-
-func (x *BlobData) GetBlob() []byte {
-	if x != nil {
-		return x.Blob
-	}
-	return nil
-}
-
-func (x *BlobData) GetChunks() []*common.ChunkData {
-	if x != nil {
-		return x.Chunks
-	}
-	return nil
-}
-
-// The reply to an UploadBlobs request.
-type UploadBlobsReply struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-}
-
-func (x *UploadBlobsReply) Reset() {
-	*x = UploadBlobsReply{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_relay_relay_proto_msgTypes[2]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *UploadBlobsReply) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*UploadBlobsReply) ProtoMessage() {}
-
-func (x *UploadBlobsReply) ProtoReflect() protoreflect.Message {
-	mi := &file_relay_relay_proto_msgTypes[2]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use UploadBlobsReply.ProtoReflect.Descriptor instead.
-func (*UploadBlobsReply) Descriptor() ([]byte, []int) {
-	return file_relay_relay_proto_rawDescGZIP(), []int{2}
-}
-
 // A request to fetch one or more blobs.
 type GetBlobsRequest struct {
 	state         protoimpl.MessageState
@@ -233,14 +87,14 @@ type GetBlobsRequest struct {
 	// is an unauthenticated request, this field should be empty.
 	RequesterId uint64 `protobuf:"varint,2,opt,name=requester_id,json=requesterId,proto3" json:"requester_id,omitempty"`
 	// If this is an authenticated request, this field will hold a signature by the requester
-	// on the header hashes being requested.
+	// on the blob hashes being requested.
 	RequesterSignature []byte `protobuf:"bytes,3,opt,name=requester_signature,json=requesterSignature,proto3" json:"requester_signature,omitempty"`
 }
 
 func (x *GetBlobsRequest) Reset() {
 	*x = GetBlobsRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_relay_relay_proto_msgTypes[3]
+		mi := &file_relay_relay_proto_msgTypes[0]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -253,7 +107,7 @@ func (x *GetBlobsRequest) String() string {
 func (*GetBlobsRequest) ProtoMessage() {}
 
 func (x *GetBlobsRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_relay_relay_proto_msgTypes[3]
+	mi := &file_relay_relay_proto_msgTypes[0]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -266,7 +120,7 @@ func (x *GetBlobsRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use GetBlobsRequest.ProtoReflect.Descriptor instead.
 func (*GetBlobsRequest) Descriptor() ([]byte, []int) {
-	return file_relay_relay_proto_rawDescGZIP(), []int{3}
+	return file_relay_relay_proto_rawDescGZIP(), []int{0}
 }
 
 func (x *GetBlobsRequest) GetBlobHashes() [][]byte {
@@ -304,7 +158,7 @@ type GetBlobsReply struct {
 func (x *GetBlobsReply) Reset() {
 	*x = GetBlobsReply{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_relay_relay_proto_msgTypes[4]
+		mi := &file_relay_relay_proto_msgTypes[1]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -317,7 +171,7 @@ func (x *GetBlobsReply) String() string {
 func (*GetBlobsReply) ProtoMessage() {}
 
 func (x *GetBlobsReply) ProtoReflect() protoreflect.Message {
-	mi := &file_relay_relay_proto_msgTypes[4]
+	mi := &file_relay_relay_proto_msgTypes[1]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -330,7 +184,7 @@ func (x *GetBlobsReply) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use GetBlobsReply.ProtoReflect.Descriptor instead.
 func (*GetBlobsReply) Descriptor() ([]byte, []int) {
-	return file_relay_relay_proto_rawDescGZIP(), []int{4}
+	return file_relay_relay_proto_rawDescGZIP(), []int{1}
 }
 
 func (x *GetBlobsReply) GetBlobs() []*RequestedBlob {
@@ -356,7 +210,7 @@ type RequestedBlob struct {
 func (x *RequestedBlob) Reset() {
 	*x = RequestedBlob{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_relay_relay_proto_msgTypes[5]
+		mi := &file_relay_relay_proto_msgTypes[2]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -369,7 +223,7 @@ func (x *RequestedBlob) String() string {
 func (*RequestedBlob) ProtoMessage() {}
 
 func (x *RequestedBlob) ProtoReflect() protoreflect.Message {
-	mi := &file_relay_relay_proto_msgTypes[5]
+	mi := &file_relay_relay_proto_msgTypes[2]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -382,7 +236,7 @@ func (x *RequestedBlob) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use RequestedBlob.ProtoReflect.Descriptor instead.
 func (*RequestedBlob) Descriptor() ([]byte, []int) {
-	return file_relay_relay_proto_rawDescGZIP(), []int{5}
+	return file_relay_relay_proto_rawDescGZIP(), []int{2}
 }
 
 func (m *RequestedBlob) GetData() isRequestedBlob_Data {
@@ -432,12 +286,18 @@ type GetChunksRequest struct {
 
 	// The chunk requests. Chunks are returned in the same order as they are requested.
 	ChunkRequests []*ChunkRequest `protobuf:"bytes,1,rep,name=chunk_requests,json=chunkRequests,proto3" json:"chunk_requests,omitempty"`
+	// If this is an authenticated request, this should hold the ID of the requester. If this
+	// is an unauthenticated request, this field should be empty.
+	RequesterId uint64 `protobuf:"varint,2,opt,name=requester_id,json=requesterId,proto3" json:"requester_id,omitempty"`
+	// If this is an authenticated request, this field will hold a signature by the requester
+	// on the chunks being requested.
+	RequesterSignature []byte `protobuf:"bytes,3,opt,name=requester_signature,json=requesterSignature,proto3" json:"requester_signature,omitempty"`
 }
 
 func (x *GetChunksRequest) Reset() {
 	*x = GetChunksRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_relay_relay_proto_msgTypes[6]
+		mi := &file_relay_relay_proto_msgTypes[3]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -450,7 +310,7 @@ func (x *GetChunksRequest) String() string {
 func (*GetChunksRequest) ProtoMessage() {}
 
 func (x *GetChunksRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_relay_relay_proto_msgTypes[6]
+	mi := &file_relay_relay_proto_msgTypes[3]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -463,7 +323,7 @@ func (x *GetChunksRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use GetChunksRequest.ProtoReflect.Descriptor instead.
 func (*GetChunksRequest) Descriptor() ([]byte, []int) {
-	return file_relay_relay_proto_rawDescGZIP(), []int{6}
+	return file_relay_relay_proto_rawDescGZIP(), []int{3}
 }
 
 func (x *GetChunksRequest) GetChunkRequests() []*ChunkRequest {
@@ -473,6 +333,20 @@ func (x *GetChunksRequest) GetChunkRequests() []*ChunkRequest {
 	return nil
 }
 
+func (x *GetChunksRequest) GetRequesterId() uint64 {
+	if x != nil {
+		return x.RequesterId
+	}
+	return 0
+}
+
+func (x *GetChunksRequest) GetRequesterSignature() []byte {
+	if x != nil {
+		return x.RequesterSignature
+	}
+	return nil
+}
+
 // A request for chunks within a specific blob.
 type ChunkRequest struct {
 	state         protoimpl.MessageState
@@ -488,7 +362,7 @@ type ChunkRequest struct {
 func (x *ChunkRequest) Reset() {
 	*x = ChunkRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_relay_relay_proto_msgTypes[7]
+		mi := &file_relay_relay_proto_msgTypes[4]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -501,7 +375,7 @@ func (x *ChunkRequest) String() string {
 func (*ChunkRequest) ProtoMessage() {}
 
 func (x *ChunkRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_relay_relay_proto_msgTypes[7]
+	mi := &file_relay_relay_proto_msgTypes[4]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -514,7 +388,7 @@ func (x *ChunkRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ChunkRequest.ProtoReflect.Descriptor instead.
 func (*ChunkRequest) Descriptor() ([]byte, []int) {
-	return file_relay_relay_proto_rawDescGZIP(), []int{7}
+	return file_relay_relay_proto_rawDescGZIP(), []int{4}
 }
 
 func (x *ChunkRequest) GetHeaderHash() []byte {
@@ -544,7 +418,7 @@ type GetChunksReply struct {
 func (x *GetChunksReply) Reset() {
 	*x = GetChunksReply{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_relay_relay_proto_msgTypes[8]
+		mi := &file_relay_relay_proto_msgTypes[5]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -557,7 +431,7 @@ func (x *GetChunksReply) String() string {
 func (*GetChunksReply) ProtoMessage() {}
 
 func (x *GetChunksReply) ProtoReflect() protoreflect.Message {
-	mi := &file_relay_relay_proto_msgTypes[8]
+	mi := &file_relay_relay_proto_msgTypes[5]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -570,7 +444,7 @@ func (x *GetChunksReply) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use GetChunksReply.ProtoReflect.Descriptor instead.
 func (*GetChunksReply) Descriptor() ([]byte, []int) {
-	return file_relay_relay_proto_rawDescGZIP(), []int{8}
+	return file_relay_relay_proto_rawDescGZIP(), []int{5}
 }
 
 func (x *GetChunksReply) GetData() []*BlobChunks {
@@ -596,7 +470,7 @@ type BlobChunks struct {
 func (x *BlobChunks) Reset() {
 	*x = BlobChunks{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_relay_relay_proto_msgTypes[9]
+		mi := &file_relay_relay_proto_msgTypes[6]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -609,7 +483,7 @@ func (x *BlobChunks) String() string {
 func (*BlobChunks) ProtoMessage() {}
 
 func (x *BlobChunks) ProtoReflect() protoreflect.Message {
-	mi := &file_relay_relay_proto_msgTypes[9]
+	mi := &file_relay_relay_proto_msgTypes[6]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -622,7 +496,7 @@ func (x *BlobChunks) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use BlobChunks.ProtoReflect.Descriptor instead.
 func (*BlobChunks) Descriptor() ([]byte, []int) {
-	return file_relay_relay_proto_rawDescGZIP(), []int{9}
+	return file_relay_relay_proto_rawDescGZIP(), []int{6}
 }
 
 func (m *BlobChunks) GetBlob() isBlobChunks_Blob {
@@ -675,7 +549,7 @@ type Chunks struct {
 func (x *Chunks) Reset() {
 	*x = Chunks{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_relay_relay_proto_msgTypes[10]
+		mi := &file_relay_relay_proto_msgTypes[7]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -688,7 +562,7 @@ func (x *Chunks) String() string {
 func (*Chunks) ProtoMessage() {}
 
 func (x *Chunks) ProtoReflect() protoreflect.Message {
-	mi := &file_relay_relay_proto_msgTypes[10]
+	mi := &file_relay_relay_proto_msgTypes[7]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -701,7 +575,7 @@ func (x *Chunks) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Chunks.ProtoReflect.Descriptor instead.
 func (*Chunks) Descriptor() ([]byte, []int) {
-	return file_relay_relay_proto_rawDescGZIP(), []int{10}
+	return file_relay_relay_proto_rawDescGZIP(), []int{7}
 }
 
 func (x *Chunks) GetChunks() []*common.ChunkData {
@@ -716,80 +590,71 @@ var File_relay_relay_proto protoreflect.FileDescriptor
 var file_relay_relay_proto_rawDesc = []byte{
 	0x0a, 0x11, 0x72, 0x65, 0x6c, 0x61, 0x79, 0x2f, 0x72, 0x65, 0x6c, 0x61, 0x79, 0x2e, 0x70, 0x72,
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 }
 
 var (
@@ -805,43 +670,36 @@ func file_relay_relay_proto_rawDescGZIP() []byte {
 }
 
 var file_relay_relay_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
-var file_relay_relay_proto_msgTypes = make([]protoimpl.MessageInfo, 11)
+var file_relay_relay_proto_msgTypes = make([]protoimpl.MessageInfo, 8)
 var file_relay_relay_proto_goTypes = []interface{}{
-	(RelayError)(0),            // 0: node.RelayError
-	(*UploadBlobsRequest)(nil), // 1: node.UploadBlobsRequest
-	(*BlobData)(nil),           // 2: node.BlobData
-	(*UploadBlobsReply)(nil),   // 3: node.UploadBlobsReply
-	(*GetBlobsRequest)(nil),    // 4: node.GetBlobsRequest
-	(*GetBlobsReply)(nil),      // 5: node.GetBlobsReply
-	(*RequestedBlob)(nil),      // 6: node.RequestedBlob
-	(*GetChunksRequest)(nil),   // 7: node.GetChunksRequest
-	(*ChunkRequest)(nil),       // 8: node.ChunkRequest
-	(*GetChunksReply)(nil),     // 9: node.GetChunksReply
-	(*BlobChunks)(nil),         // 10: node.BlobChunks
-	(*Chunks)(nil),             // 11: node.Chunks
-	(*common.ChunkData)(nil),   // 12: common.ChunkData
+	(RelayError)(0),          // 0: node.RelayError
+	(*GetBlobsRequest)(nil),  // 1: node.GetBlobsRequest
+	(*GetBlobsReply)(nil),    // 2: node.GetBlobsReply
+	(*RequestedBlob)(nil),    // 3: node.RequestedBlob
+	(*GetChunksRequest)(nil), // 4: node.GetChunksRequest
+	(*ChunkRequest)(nil),     // 5: node.ChunkRequest
+	(*GetChunksReply)(nil),   // 6: node.GetChunksReply
+	(*BlobChunks)(nil),       // 7: node.BlobChunks
+	(*Chunks)(nil),           // 8: node.Chunks
+	(*common.ChunkData)(nil), // 9: common.ChunkData
 }
 var file_relay_relay_proto_depIdxs = []int32{
-	2,  // 0: node.UploadBlobsRequest.blobs:type_name -> node.BlobData
-	12, // 1: node.BlobData.chunks:type_name -> common.ChunkData
-	6,  // 2: node.GetBlobsReply.blobs:type_name -> node.RequestedBlob
-	0,  // 3: node.RequestedBlob.error_code:type_name -> node.RelayError
-	8,  // 4: node.GetChunksRequest.chunk_requests:type_name -> node.ChunkRequest
-	10, // 5: node.GetChunksReply.data:type_name -> node.BlobChunks
-	11, // 6: node.BlobChunks.chunks:type_name -> node.Chunks
-	0,  // 7: node.BlobChunks.error_code:type_name -> node.RelayError
-	12, // 8: node.Chunks.chunks:type_name -> common.ChunkData
-	1,  // 9: node.PrivateRelay.UploadBlobs:input_type -> node.UploadBlobsRequest
-	4,  // 10: node.Relay.GetBlobs:input_type -> node.GetBlobsRequest
-	7,  // 11: node.Relay.GetChunks:input_type -> node.GetChunksRequest
-	3,  // 12: node.PrivateRelay.UploadBlobs:output_type -> node.UploadBlobsReply
-	5,  // 13: node.Relay.GetBlobs:output_type -> node.GetBlobsReply
-	9,  // 14: node.Relay.GetChunks:output_type -> node.GetChunksReply
-	12, // [12:15] is the sub-list for method output_type
-	9,  // [9:12] is the sub-list for method input_type
-	9,  // [9:9] is the sub-list for extension type_name
-	9,  // [9:9] is the sub-list for extension extendee
-	0,  // [0:9] is the sub-list for field type_name
+	3, // 0: node.GetBlobsReply.blobs:type_name -> node.RequestedBlob
+	0, // 1: node.RequestedBlob.error_code:type_name -> node.RelayError
+	5, // 2: node.GetChunksRequest.chunk_requests:type_name -> node.ChunkRequest
+	7, // 3: node.GetChunksReply.data:type_name -> node.BlobChunks
+	8, // 4: node.BlobChunks.chunks:type_name -> node.Chunks
+	0, // 5: node.BlobChunks.error_code:type_name -> node.RelayError
+	9, // 6: node.Chunks.chunks:type_name -> common.ChunkData
+	1, // 7: node.Relay.GetBlobs:input_type -> node.GetBlobsRequest
+	4, // 8: node.Relay.GetChunks:input_type -> node.GetChunksRequest
+	2, // 9: node.Relay.GetBlobs:output_type -> node.GetBlobsReply
+	6, // 10: node.Relay.GetChunks:output_type -> node.GetChunksReply
+	9, // [9:11] is the sub-list for method output_type
+	7, // [7:9] is the sub-list for method input_type
+	7, // [7:7] is the sub-list for extension type_name
+	7, // [7:7] is the sub-list for extension extendee
+	0, // [0:7] is the sub-list for field type_name
 }
 
 func init() { file_relay_relay_proto_init() }
@@ -851,42 +709,6 @@ func file_relay_relay_proto_init() {
 	}
 	if !protoimpl.UnsafeEnabled {
 		file_relay_relay_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*UploadBlobsRequest); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_relay_relay_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*BlobData); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_relay_relay_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*UploadBlobsReply); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_relay_relay_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*GetBlobsRequest); i {
 			case 0:
 				return &v.state
@@ -898,7 +720,7 @@ func file_relay_relay_proto_init() {
 				return nil
 			}
 		}
-		file_relay_relay_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+		file_relay_relay_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*GetBlobsReply); i {
 			case 0:
 				return &v.state
@@ -910,7 +732,7 @@ func file_relay_relay_proto_init() {
 				return nil
 			}
 		}
-		file_relay_relay_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
+		file_relay_relay_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*RequestedBlob); i {
 			case 0:
 				return &v.state
@@ -922,7 +744,7 @@ func file_relay_relay_proto_init() {
 				return nil
 			}
 		}
-		file_relay_relay_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
+		file_relay_relay_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*GetChunksRequest); i {
 			case 0:
 				return &v.state
@@ -934,7 +756,7 @@ func file_relay_relay_proto_init() {
 				return nil
 			}
 		}
-		file_relay_relay_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
+		file_relay_relay_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*ChunkRequest); i {
 			case 0:
 				return &v.state
@@ -946,7 +768,7 @@ func file_relay_relay_proto_init() {
 				return nil
 			}
 		}
-		file_relay_relay_proto_msgTypes[8].Exporter = func(v interface{}, i int) interface{} {
+		file_relay_relay_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*GetChunksReply); i {
 			case 0:
 				return &v.state
@@ -958,7 +780,7 @@ func file_relay_relay_proto_init() {
 				return nil
 			}
 		}
-		file_relay_relay_proto_msgTypes[9].Exporter = func(v interface{}, i int) interface{} {
+		file_relay_relay_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*BlobChunks); i {
 			case 0:
 				return &v.state
@@ -970,7 +792,7 @@ func file_relay_relay_proto_init() {
 				return nil
 			}
 		}
-		file_relay_relay_proto_msgTypes[10].Exporter = func(v interface{}, i int) interface{} {
+		file_relay_relay_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*Chunks); i {
 			case 0:
 				return &v.state
@@ -983,11 +805,11 @@ func file_relay_relay_proto_init() {
 			}
 		}
 	}
-	file_relay_relay_proto_msgTypes[5].OneofWrappers = []interface{}{
+	file_relay_relay_proto_msgTypes[2].OneofWrappers = []interface{}{
 		(*RequestedBlob_Blob)(nil),
 		(*RequestedBlob_ErrorCode)(nil),
 	}
-	file_relay_relay_proto_msgTypes[9].OneofWrappers = []interface{}{
+	file_relay_relay_proto_msgTypes[6].OneofWrappers = []interface{}{
 		(*BlobChunks_Chunks)(nil),
 		(*BlobChunks_ErrorCode)(nil),
 	}
@@ -997,9 +819,9 @@ func file_relay_relay_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_relay_relay_proto_rawDesc,
 			NumEnums:      1,
-			NumMessages:   11,
+			NumMessages:   8,
 			NumExtensions: 0,
-			NumServices:   2,
+			NumServices:   1,
 		},
 		GoTypes:           file_relay_relay_proto_goTypes,
 		DependencyIndexes: file_relay_relay_proto_depIdxs,
diff --git a/api/grpc/relay/relay_grpc.pb.go b/api/grpc/relay/relay_grpc.pb.go
index 8c9b5dbc7..3d957db4a 100644
--- a/api/grpc/relay/relay_grpc.pb.go
+++ b/api/grpc/relay/relay_grpc.pb.go
@@ -18,98 +18,6 @@ import (
 // Requires gRPC-Go v1.32.0 or later.
 const _ = grpc.SupportPackageIsVersion7
 
-const (
-	PrivateRelay_UploadBlobs_FullMethodName = "/node.PrivateRelay/UploadBlobs"
-)
-
-// PrivateRelayClient is the client API for PrivateRelay service.
-//
-// 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 PrivateRelayClient interface {
-	// UploadBlobs uploads blobs and encoded blob chunks to the relay.
-	UploadBlobs(ctx context.Context, in *UploadBlobsRequest, opts ...grpc.CallOption) (*UploadBlobsReply, error)
-}
-
-type privateRelayClient struct {
-	cc grpc.ClientConnInterface
-}
-
-func NewPrivateRelayClient(cc grpc.ClientConnInterface) PrivateRelayClient {
-	return &privateRelayClient{cc}
-}
-
-func (c *privateRelayClient) UploadBlobs(ctx context.Context, in *UploadBlobsRequest, opts ...grpc.CallOption) (*UploadBlobsReply, error) {
-	out := new(UploadBlobsReply)
-	err := c.cc.Invoke(ctx, PrivateRelay_UploadBlobs_FullMethodName, in, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-// PrivateRelayServer is the server API for PrivateRelay service.
-// All implementations must embed UnimplementedPrivateRelayServer
-// for forward compatibility
-type PrivateRelayServer interface {
-	// UploadBlobs uploads blobs and encoded blob chunks to the relay.
-	UploadBlobs(context.Context, *UploadBlobsRequest) (*UploadBlobsReply, error)
-	mustEmbedUnimplementedPrivateRelayServer()
-}
-
-// UnimplementedPrivateRelayServer must be embedded to have forward compatible implementations.
-type UnimplementedPrivateRelayServer struct {
-}
-
-func (UnimplementedPrivateRelayServer) UploadBlobs(context.Context, *UploadBlobsRequest) (*UploadBlobsReply, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method UploadBlobs not implemented")
-}
-func (UnimplementedPrivateRelayServer) mustEmbedUnimplementedPrivateRelayServer() {}
-
-// UnsafePrivateRelayServer may be embedded to opt out of forward compatibility for this service.
-// Use of this interface is not recommended, as added methods to PrivateRelayServer will
-// result in compilation errors.
-type UnsafePrivateRelayServer interface {
-	mustEmbedUnimplementedPrivateRelayServer()
-}
-
-func RegisterPrivateRelayServer(s grpc.ServiceRegistrar, srv PrivateRelayServer) {
-	s.RegisterService(&PrivateRelay_ServiceDesc, srv)
-}
-
-func _PrivateRelay_UploadBlobs_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(UploadBlobsRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(PrivateRelayServer).UploadBlobs(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: PrivateRelay_UploadBlobs_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(PrivateRelayServer).UploadBlobs(ctx, req.(*UploadBlobsRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-// PrivateRelay_ServiceDesc is the grpc.ServiceDesc for PrivateRelay service.
-// It's only intended for direct use with grpc.RegisterService,
-// and not to be introspected or modified (even as a copy)
-var PrivateRelay_ServiceDesc = grpc.ServiceDesc{
-	ServiceName: "node.PrivateRelay",
-	HandlerType: (*PrivateRelayServer)(nil),
-	Methods: []grpc.MethodDesc{
-		{
-			MethodName: "UploadBlobs",
-			Handler:    _PrivateRelay_UploadBlobs_Handler,
-		},
-	},
-	Streams:  []grpc.StreamDesc{},
-	Metadata: "relay/relay.proto",
-}
-
 const (
 	Relay_GetBlobs_FullMethodName  = "/node.Relay/GetBlobs"
 	Relay_GetChunks_FullMethodName = "/node.Relay/GetChunks"
diff --git a/api/proto/relay/relay.proto b/api/proto/relay/relay.proto
index 9dd54f94f..acc7ad67d 100644
--- a/api/proto/relay/relay.proto
+++ b/api/proto/relay/relay.proto
@@ -7,13 +7,6 @@ option go_package = "github.com/Layr-Labs/eigenda/api/grpc/relay";
 // Experimental: the following definitions are experimental and subject to change. //
 /////////////////////////////////////////////////////////////////////////////////////
 
-// PrivateRelay is a service that provides access to privileged relay functionality
-// that isn't available to the general public.
-service PrivateRelay {
-  // UploadBlobs uploads blobs and encoded blob chunks to the relay.
-  rpc UploadBlobs(UploadBlobsRequest) returns (UploadBlobsReply) {}
-}
-
 // Relay is a service that provides access to public relay functionality.
 service Relay {
   // GetBlobs retrieves blobs stored by the relay.
@@ -23,25 +16,6 @@ service Relay {
   rpc GetChunks(GetChunksRequest) returns (GetChunksReply) {}
 }
 
-// A request to upload one or more blobs.
-message UploadBlobsRequest {
-  // The blobs to upload.
-  repeated BlobData blobs = 1;
-}
-
-// A blob, its header, and its encoded chunks.
-message BlobData {
-  // The unencoded blob data.
-  bytes blob = 1;
-  // The encoded blob chunks.
-  repeated common.ChunkData chunks = 2;
-}
-
-// The reply to an UploadBlobs request.
-message UploadBlobsReply {
-
-}
-
 // A request to fetch one or more blobs.
 message GetBlobsRequest {
   // The hashes of the blobs to retrieve. The order of these requested headers will
@@ -53,7 +27,7 @@ message GetBlobsRequest {
   uint64 requester_id = 2;
 
   // If this is an authenticated request, this field will hold a signature by the requester
-  // on the header hashes being requested.
+  // on the blob hashes being requested.
   bytes requester_signature = 3;
 }
 
@@ -78,6 +52,14 @@ message RequestedBlob {
 message GetChunksRequest {
   // The chunk requests. Chunks are returned in the same order as they are requested.
   repeated ChunkRequest chunk_requests = 1;
+
+  // If this is an authenticated request, this should hold the ID of the requester. If this
+  // is an unauthenticated request, this field should be empty.
+  uint64 requester_id = 2;
+
+  // If this is an authenticated request, this field will hold a signature by the requester
+  // on the chunks being requested.
+  bytes requester_signature = 3;
 }
 
 // A request for chunks within a specific blob.