diff --git a/api/services/content/v1/content.pb.go b/api/services/content/v1/content.pb.go
index 063bb9214..e9a01ee49 100644
--- a/api/services/content/v1/content.pb.go
+++ b/api/services/content/v1/content.pb.go
@@ -20,6 +20,8 @@
 		Status
 		StatusRequest
 		StatusResponse
+		ListStatusesRequest
+		ListStatusesResponse
 		WriteContentRequest
 		WriteContentResponse
 		AbortRequest
@@ -195,7 +197,7 @@ func (*Status) ProtoMessage()               {}
 func (*Status) Descriptor() ([]byte, []int) { return fileDescriptorContent, []int{8} }
 
 type StatusRequest struct {
-	Filter string `protobuf:"bytes,1,opt,name=filter,proto3" json:"filter,omitempty"`
+	Ref string `protobuf:"bytes,1,opt,name=ref,proto3" json:"ref,omitempty"`
 }
 
 func (m *StatusRequest) Reset()                    { *m = StatusRequest{} }
@@ -203,13 +205,29 @@ func (*StatusRequest) ProtoMessage()               {}
 func (*StatusRequest) Descriptor() ([]byte, []int) { return fileDescriptorContent, []int{9} }
 
 type StatusResponse struct {
-	Statuses []Status `protobuf:"bytes,1,rep,name=statuses" json:"statuses"`
+	Status *Status `protobuf:"bytes,1,opt,name=status" json:"status,omitempty"`
 }
 
 func (m *StatusResponse) Reset()                    { *m = StatusResponse{} }
 func (*StatusResponse) ProtoMessage()               {}
 func (*StatusResponse) Descriptor() ([]byte, []int) { return fileDescriptorContent, []int{10} }
 
+type ListStatusesRequest struct {
+	Filters []string `protobuf:"bytes,1,rep,name=filters" json:"filters,omitempty"`
+}
+
+func (m *ListStatusesRequest) Reset()                    { *m = ListStatusesRequest{} }
+func (*ListStatusesRequest) ProtoMessage()               {}
+func (*ListStatusesRequest) Descriptor() ([]byte, []int) { return fileDescriptorContent, []int{11} }
+
+type ListStatusesResponse struct {
+	Statuses []Status `protobuf:"bytes,1,rep,name=statuses" json:"statuses"`
+}
+
+func (m *ListStatusesResponse) Reset()                    { *m = ListStatusesResponse{} }
+func (*ListStatusesResponse) ProtoMessage()               {}
+func (*ListStatusesResponse) Descriptor() ([]byte, []int) { return fileDescriptorContent, []int{12} }
+
 // WriteContentRequest writes data to the request ref at offset.
 type WriteContentRequest struct {
 	// Action sets the behavior of the write.
@@ -265,7 +283,7 @@ type WriteContentRequest struct {
 
 func (m *WriteContentRequest) Reset()                    { *m = WriteContentRequest{} }
 func (*WriteContentRequest) ProtoMessage()               {}
-func (*WriteContentRequest) Descriptor() ([]byte, []int) { return fileDescriptorContent, []int{11} }
+func (*WriteContentRequest) Descriptor() ([]byte, []int) { return fileDescriptorContent, []int{13} }
 
 // WriteContentResponse is returned on the culmination of a write call.
 type WriteContentResponse struct {
@@ -299,7 +317,7 @@ type WriteContentResponse struct {
 
 func (m *WriteContentResponse) Reset()                    { *m = WriteContentResponse{} }
 func (*WriteContentResponse) ProtoMessage()               {}
-func (*WriteContentResponse) Descriptor() ([]byte, []int) { return fileDescriptorContent, []int{12} }
+func (*WriteContentResponse) Descriptor() ([]byte, []int) { return fileDescriptorContent, []int{14} }
 
 type AbortRequest struct {
 	Ref string `protobuf:"bytes,1,opt,name=ref,proto3" json:"ref,omitempty"`
@@ -307,7 +325,7 @@ type AbortRequest struct {
 
 func (m *AbortRequest) Reset()                    { *m = AbortRequest{} }
 func (*AbortRequest) ProtoMessage()               {}
-func (*AbortRequest) Descriptor() ([]byte, []int) { return fileDescriptorContent, []int{13} }
+func (*AbortRequest) Descriptor() ([]byte, []int) { return fileDescriptorContent, []int{15} }
 
 func init() {
 	proto.RegisterType((*Info)(nil), "containerd.services.content.v1.Info")
@@ -321,6 +339,8 @@ func init() {
 	proto.RegisterType((*Status)(nil), "containerd.services.content.v1.Status")
 	proto.RegisterType((*StatusRequest)(nil), "containerd.services.content.v1.StatusRequest")
 	proto.RegisterType((*StatusResponse)(nil), "containerd.services.content.v1.StatusResponse")
+	proto.RegisterType((*ListStatusesRequest)(nil), "containerd.services.content.v1.ListStatusesRequest")
+	proto.RegisterType((*ListStatusesResponse)(nil), "containerd.services.content.v1.ListStatusesResponse")
 	proto.RegisterType((*WriteContentRequest)(nil), "containerd.services.content.v1.WriteContentRequest")
 	proto.RegisterType((*WriteContentResponse)(nil), "containerd.services.content.v1.WriteContentResponse")
 	proto.RegisterType((*AbortRequest)(nil), "containerd.services.content.v1.AbortRequest")
@@ -356,13 +376,15 @@ type ContentClient interface {
 	//
 	// The requested data may be returned in one or more messages.
 	Read(ctx context.Context, in *ReadContentRequest, opts ...grpc.CallOption) (Content_ReadClient, error)
-	// Status returns the status of ongoing object ingestions, started via
+	// Status returns the status for a single reference.
+	Status(ctx context.Context, in *StatusRequest, opts ...grpc.CallOption) (*StatusResponse, error)
+	// ListStatuses returns the status of ongoing object ingestions, started via
 	// Write.
 	//
 	// Only those matching the regular expression will be provided in the
 	// response. If the provided regular expression is empty, all ingestions
 	// will be provided.
-	Status(ctx context.Context, in *StatusRequest, opts ...grpc.CallOption) (*StatusResponse, error)
+	ListStatuses(ctx context.Context, in *ListStatusesRequest, opts ...grpc.CallOption) (*ListStatusesResponse, error)
 	// Write begins or resumes writes to a resource identified by a unique ref.
 	// Only one active stream may exist at a time for each ref.
 	//
@@ -484,6 +506,15 @@ func (c *contentClient) Status(ctx context.Context, in *StatusRequest, opts ...g
 	return out, nil
 }
 
+func (c *contentClient) ListStatuses(ctx context.Context, in *ListStatusesRequest, opts ...grpc.CallOption) (*ListStatusesResponse, error) {
+	out := new(ListStatusesResponse)
+	err := grpc.Invoke(ctx, "/containerd.services.content.v1.Content/ListStatuses", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 func (c *contentClient) Write(ctx context.Context, opts ...grpc.CallOption) (Content_WriteClient, error) {
 	stream, err := grpc.NewClientStream(ctx, &_Content_serviceDesc.Streams[2], c.cc, "/containerd.services.content.v1.Content/Write", opts...)
 	if err != nil {
@@ -545,13 +576,15 @@ type ContentServer interface {
 	//
 	// The requested data may be returned in one or more messages.
 	Read(*ReadContentRequest, Content_ReadServer) error
-	// Status returns the status of ongoing object ingestions, started via
+	// Status returns the status for a single reference.
+	Status(context.Context, *StatusRequest) (*StatusResponse, error)
+	// ListStatuses returns the status of ongoing object ingestions, started via
 	// Write.
 	//
 	// Only those matching the regular expression will be provided in the
 	// response. If the provided regular expression is empty, all ingestions
 	// will be provided.
-	Status(context.Context, *StatusRequest) (*StatusResponse, error)
+	ListStatuses(context.Context, *ListStatusesRequest) (*ListStatusesResponse, error)
 	// Write begins or resumes writes to a resource identified by a unique ref.
 	// Only one active stream may exist at a time for each ref.
 	//
@@ -674,6 +707,24 @@ func _Content_Status_Handler(srv interface{}, ctx context.Context, dec func(inte
 	return interceptor(ctx, in, info, handler)
 }
 
+func _Content_ListStatuses_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(ListStatusesRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(ContentServer).ListStatuses(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/containerd.services.content.v1.Content/ListStatuses",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(ContentServer).ListStatuses(ctx, req.(*ListStatusesRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 func _Content_Write_Handler(srv interface{}, stream grpc.ServerStream) error {
 	return srv.(ContentServer).Write(&contentWriteServer{stream})
 }
@@ -734,6 +785,10 @@ var _Content_serviceDesc = grpc.ServiceDesc{
 			MethodName: "Status",
 			Handler:    _Content_Status_Handler,
 		},
+		{
+			MethodName: "ListStatuses",
+			Handler:    _Content_ListStatuses_Handler,
+		},
 		{
 			MethodName: "Abort",
 			Handler:    _Content_Abort_Handler,
@@ -1053,11 +1108,11 @@ func (m *StatusRequest) MarshalTo(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
-	if len(m.Filter) > 0 {
+	if len(m.Ref) > 0 {
 		dAtA[i] = 0xa
 		i++
-		i = encodeVarintContent(dAtA, i, uint64(len(m.Filter)))
-		i += copy(dAtA[i:], m.Filter)
+		i = encodeVarintContent(dAtA, i, uint64(len(m.Ref)))
+		i += copy(dAtA[i:], m.Ref)
 	}
 	return i, nil
 }
@@ -1073,6 +1128,67 @@ func (m *StatusResponse) Marshal() (dAtA []byte, err error) {
 }
 
 func (m *StatusResponse) MarshalTo(dAtA []byte) (int, error) {
+	var i int
+	_ = i
+	var l int
+	_ = l
+	if m.Status != nil {
+		dAtA[i] = 0xa
+		i++
+		i = encodeVarintContent(dAtA, i, uint64(m.Status.Size()))
+		n5, err := m.Status.MarshalTo(dAtA[i:])
+		if err != nil {
+			return 0, err
+		}
+		i += n5
+	}
+	return i, nil
+}
+
+func (m *ListStatusesRequest) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalTo(dAtA)
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *ListStatusesRequest) MarshalTo(dAtA []byte) (int, error) {
+	var i int
+	_ = i
+	var l int
+	_ = l
+	if len(m.Filters) > 0 {
+		for _, s := range m.Filters {
+			dAtA[i] = 0xa
+			i++
+			l = len(s)
+			for l >= 1<<7 {
+				dAtA[i] = uint8(uint64(l)&0x7f | 0x80)
+				l >>= 7
+				i++
+			}
+			dAtA[i] = uint8(l)
+			i++
+			i += copy(dAtA[i:], s)
+		}
+	}
+	return i, nil
+}
+
+func (m *ListStatusesResponse) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalTo(dAtA)
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *ListStatusesResponse) MarshalTo(dAtA []byte) (int, error) {
 	var i int
 	_ = i
 	var l int
@@ -1166,19 +1282,19 @@ func (m *WriteContentResponse) MarshalTo(dAtA []byte) (int, error) {
 	dAtA[i] = 0x12
 	i++
 	i = encodeVarintContent(dAtA, i, uint64(github_com_gogo_protobuf_types.SizeOfStdTime(m.StartedAt)))
-	n5, err := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.StartedAt, dAtA[i:])
-	if err != nil {
-		return 0, err
-	}
-	i += n5
-	dAtA[i] = 0x1a
-	i++
-	i = encodeVarintContent(dAtA, i, uint64(github_com_gogo_protobuf_types.SizeOfStdTime(m.UpdatedAt)))
-	n6, err := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.UpdatedAt, dAtA[i:])
+	n6, err := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.StartedAt, dAtA[i:])
 	if err != nil {
 		return 0, err
 	}
 	i += n6
+	dAtA[i] = 0x1a
+	i++
+	i = encodeVarintContent(dAtA, i, uint64(github_com_gogo_protobuf_types.SizeOfStdTime(m.UpdatedAt)))
+	n7, err := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.UpdatedAt, dAtA[i:])
+	if err != nil {
+		return 0, err
+	}
+	i += n7
 	if m.Offset != 0 {
 		dAtA[i] = 0x20
 		i++
@@ -1366,7 +1482,7 @@ func (m *Status) Size() (n int) {
 func (m *StatusRequest) Size() (n int) {
 	var l int
 	_ = l
-	l = len(m.Filter)
+	l = len(m.Ref)
 	if l > 0 {
 		n += 1 + l + sovContent(uint64(l))
 	}
@@ -1374,6 +1490,28 @@ func (m *StatusRequest) Size() (n int) {
 }
 
 func (m *StatusResponse) Size() (n int) {
+	var l int
+	_ = l
+	if m.Status != nil {
+		l = m.Status.Size()
+		n += 1 + l + sovContent(uint64(l))
+	}
+	return n
+}
+
+func (m *ListStatusesRequest) Size() (n int) {
+	var l int
+	_ = l
+	if len(m.Filters) > 0 {
+		for _, s := range m.Filters {
+			l = len(s)
+			n += 1 + l + sovContent(uint64(l))
+		}
+	}
+	return n
+}
+
+func (m *ListStatusesResponse) Size() (n int) {
 	var l int
 	_ = l
 	if len(m.Statuses) > 0 {
@@ -1562,7 +1700,7 @@ func (this *StatusRequest) String() string {
 		return "nil"
 	}
 	s := strings.Join([]string{`&StatusRequest{`,
-		`Filter:` + fmt.Sprintf("%v", this.Filter) + `,`,
+		`Ref:` + fmt.Sprintf("%v", this.Ref) + `,`,
 		`}`,
 	}, "")
 	return s
@@ -1572,6 +1710,26 @@ func (this *StatusResponse) String() string {
 		return "nil"
 	}
 	s := strings.Join([]string{`&StatusResponse{`,
+		`Status:` + strings.Replace(fmt.Sprintf("%v", this.Status), "Status", "Status", 1) + `,`,
+		`}`,
+	}, "")
+	return s
+}
+func (this *ListStatusesRequest) String() string {
+	if this == nil {
+		return "nil"
+	}
+	s := strings.Join([]string{`&ListStatusesRequest{`,
+		`Filters:` + fmt.Sprintf("%v", this.Filters) + `,`,
+		`}`,
+	}, "")
+	return s
+}
+func (this *ListStatusesResponse) String() string {
+	if this == nil {
+		return "nil"
+	}
+	s := strings.Join([]string{`&ListStatusesResponse{`,
 		`Statuses:` + strings.Replace(strings.Replace(fmt.Sprintf("%v", this.Statuses), "Status", "Status", 1), `&`, ``, 1) + `,`,
 		`}`,
 	}, "")
@@ -2576,7 +2734,7 @@ func (m *StatusRequest) Unmarshal(dAtA []byte) error {
 		switch fieldNum {
 		case 1:
 			if wireType != 2 {
-				return fmt.Errorf("proto: wrong wireType = %d for field Filter", wireType)
+				return fmt.Errorf("proto: wrong wireType = %d for field Ref", wireType)
 			}
 			var stringLen uint64
 			for shift := uint(0); ; shift += 7 {
@@ -2601,7 +2759,7 @@ func (m *StatusRequest) Unmarshal(dAtA []byte) error {
 			if postIndex > l {
 				return io.ErrUnexpectedEOF
 			}
-			m.Filter = string(dAtA[iNdEx:postIndex])
+			m.Ref = string(dAtA[iNdEx:postIndex])
 			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
@@ -2653,6 +2811,168 @@ func (m *StatusResponse) Unmarshal(dAtA []byte) error {
 			return fmt.Errorf("proto: StatusResponse: illegal tag %d (wire type %d)", fieldNum, wire)
 		}
 		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Status", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowContent
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= (int(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthContent
+			}
+			postIndex := iNdEx + msglen
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if m.Status == nil {
+				m.Status = &Status{}
+			}
+			if err := m.Status.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipContent(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if skippy < 0 {
+				return ErrInvalidLengthContent
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func (m *ListStatusesRequest) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowContent
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= (uint64(b) & 0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: ListStatusesRequest: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: ListStatusesRequest: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Filters", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowContent
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= (uint64(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthContent
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Filters = append(m.Filters, string(dAtA[iNdEx:postIndex]))
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipContent(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if skippy < 0 {
+				return ErrInvalidLengthContent
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func (m *ListStatusesResponse) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowContent
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= (uint64(b) & 0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: ListStatusesResponse: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: ListStatusesResponse: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
 		case 1:
 			if wireType != 2 {
 				return fmt.Errorf("proto: wrong wireType = %d for field Statuses", wireType)
@@ -3286,61 +3606,63 @@ func init() {
 }
 
 var fileDescriptorContent = []byte{
-	// 881 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xb4, 0x56, 0x4f, 0x6f, 0xe3, 0x44,
-	0x14, 0xcf, 0x24, 0x8e, 0x69, 0x5f, 0xc2, 0x12, 0x26, 0xa1, 0x8a, 0x8c, 0x70, 0x82, 0x85, 0x20,
-	0xda, 0x65, 0x9d, 0x6e, 0xba, 0x37, 0x24, 0x44, 0x92, 0x5d, 0xa0, 0x88, 0x2e, 0x92, 0x37, 0xb0,
-	0xa2, 0x17, 0xe4, 0x24, 0x13, 0x63, 0x29, 0xf1, 0x78, 0xed, 0x49, 0x04, 0x9c, 0xb8, 0x20, 0xa1,
-	0x8a, 0x03, 0x5f, 0xa0, 0x17, 0xe0, 0xce, 0x9d, 0x4f, 0xd0, 0x23, 0x47, 0xb4, 0x87, 0x96, 0xe6,
-	0x83, 0x20, 0xe4, 0xf1, 0xd8, 0x71, 0x9a, 0x96, 0xfc, 0x69, 0x38, 0xe5, 0x79, 0xfc, 0x7e, 0xbf,
-	0xf7, 0xef, 0x97, 0x79, 0x86, 0x0f, 0x2d, 0x9b, 0x7d, 0x3d, 0xee, 0xea, 0x3d, 0x3a, 0xaa, 0xf7,
-	0xa8, 0xc3, 0x4c, 0xdb, 0x21, 0x5e, 0x3f, 0x69, 0x9a, 0xae, 0x5d, 0xf7, 0x89, 0x37, 0xb1, 0x7b,
-	0xc4, 0xe7, 0xe7, 0xc4, 0x61, 0xf5, 0xc9, 0x83, 0xc8, 0xd4, 0x5d, 0x8f, 0x32, 0x8a, 0xd5, 0x19,
-	0x42, 0x8f, 0xbc, 0xf5, 0xc8, 0x65, 0xf2, 0x40, 0x29, 0x59, 0xd4, 0xa2, 0xdc, 0xb5, 0x1e, 0x58,
-	0x21, 0x4a, 0xa9, 0x58, 0x94, 0x5a, 0x43, 0x52, 0xe7, 0x4f, 0xdd, 0xf1, 0xa0, 0xce, 0xec, 0x11,
-	0xf1, 0x99, 0x39, 0x72, 0x85, 0xc3, 0xeb, 0x57, 0x1d, 0xc8, 0xc8, 0x65, 0xdf, 0x86, 0x2f, 0xb5,
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-	0x00,
+	// 927 bytes of a gzipped FileDescriptorProto
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 }
diff --git a/api/services/content/v1/content.proto b/api/services/content/v1/content.proto
index cb90edd9d..5bb554980 100644
--- a/api/services/content/v1/content.proto
+++ b/api/services/content/v1/content.proto
@@ -32,13 +32,16 @@ service Content {
 	// The requested data may be returned in one or more messages.
 	rpc Read(ReadContentRequest) returns (stream ReadContentResponse);
 
-	// Status returns the status of ongoing object ingestions, started via
+	// Status returns the status for a single reference.
+	rpc Status(StatusRequest) returns (StatusResponse);
+
+	// ListStatuses returns the status of ongoing object ingestions, started via
 	// Write.
 	//
 	// Only those matching the regular expression will be provided in the
 	// response. If the provided regular expression is empty, all ingestions
 	// will be provided.
-	rpc Status(StatusRequest) returns (StatusResponse);
+	rpc ListStatuses(ListStatusesRequest) returns (ListStatusesResponse);
 
 	// Write begins or resumes writes to a resource identified by a unique ref.
 	// Only one active stream may exist at a time for each ref.
@@ -124,11 +127,20 @@ message Status {
 	string expected = 6 [(gogoproto.customtype) = "github.com/opencontainers/go-digest.Digest", (gogoproto.nullable) = false];
 }
 
+
 message StatusRequest {
-	string filter = 1;
+	string ref = 1;
 }
 
 message StatusResponse {
+	Status status = 1;
+}
+
+message ListStatusesRequest {
+	repeated string filters = 1;
+}
+
+message ListStatusesResponse {
 	repeated Status statuses = 1 [(gogoproto.nullable) = false];
 }
 
diff --git a/cmd/dist/active.go b/cmd/dist/active.go
index a5935c5d2..ede21f2c4 100644
--- a/cmd/dist/active.go
+++ b/cmd/dist/active.go
@@ -40,7 +40,7 @@ var activeCommand = cli.Command{
 			return err
 		}
 
-		active, err := cs.Status(ctx, match)
+		active, err := cs.ListStatuses(ctx, match)
 		if err != nil {
 			return err
 		}
diff --git a/cmd/dist/fetch.go b/cmd/dist/fetch.go
index d8f2f6848..5258da8b8 100644
--- a/cmd/dist/fetch.go
+++ b/cmd/dist/fetch.go
@@ -123,7 +123,7 @@ outer:
 
 			activeSeen := map[string]struct{}{}
 			if !done {
-				active, err := cs.Status(ctx, "")
+				active, err := cs.ListStatuses(ctx, "")
 				if err != nil {
 					log.G(ctx).WithError(err).Error("active check failed")
 					continue
diff --git a/content/content.go b/content/content.go
index ca236d66c..2c91b99d5 100644
--- a/content/content.go
+++ b/content/content.go
@@ -58,19 +58,19 @@ type Manager interface {
 
 	// Delete removes the content from the store.
 	Delete(ctx context.Context, dgst digest.Digest) error
+}
 
-	// Status returns the status of any active ingestions whose ref match the
+// IngestManager provides methods for managing ingests.
+type IngestManager interface {
+	// Status returns the status of the provided ref.
+	Status(ctx context.Context, ref string) (Status, error)
+
+	// ListStatuses returns the status of any active ingestions whose ref match the
 	// provided regular expression. If empty, all active ingestions will be
 	// returned.
-	//
-	// TODO(stevvooe): Status may be slighly out of place here. If this remains
-	// here, we should remove Manager and just define these on store.
-	Status(ctx context.Context, re string) ([]Status, error)
+	ListStatuses(ctx context.Context, filters ...string) ([]Status, error)
 
 	// Abort completely cancels the ingest operation targeted by ref.
-	//
-	// TODO(stevvooe): Same consideration as above. This should really be
-	// restricted to an ingest management interface.
 	Abort(ctx context.Context, ref string) error
 }
 
@@ -86,6 +86,7 @@ type Writer interface {
 // are commonly provided by complete implementations.
 type Store interface {
 	Manager
-	Ingester
 	Provider
+	IngestManager
+	Ingester
 }
diff --git a/content/content_test.go b/content/content_test.go
index 8942cbf03..b73cd61e4 100644
--- a/content/content_test.go
+++ b/content/content_test.go
@@ -52,7 +52,7 @@ func TestContentWriter(t *testing.T) {
 	}
 
 	// we should also see this as an active ingestion
-	ingestions, err := cs.Status(ctx, "")
+	ingestions, err := cs.ListStatuses(ctx, "")
 	if err != nil {
 		t.Fatal(err)
 	}
diff --git a/content/store.go b/content/store.go
index a1092f791..ba95199d8 100644
--- a/content/store.go
+++ b/content/store.go
@@ -7,11 +7,11 @@ import (
 	"io/ioutil"
 	"os"
 	"path/filepath"
-	"regexp"
 	"strconv"
 	"time"
 
 	"github.com/containerd/containerd/errdefs"
+	"github.com/containerd/containerd/filters"
 	"github.com/containerd/containerd/log"
 	digest "github.com/opencontainers/go-digest"
 	"github.com/pkg/errors"
@@ -136,7 +136,11 @@ func (cs *store) Walk(ctx context.Context, fn WalkFunc) error {
 	})
 }
 
-func (s *store) Status(ctx context.Context, re string) ([]Status, error) {
+func (s *store) Status(ctx context.Context, ref string) (Status, error) {
+	return s.status(s.ingestRoot(ref))
+}
+
+func (s *store) ListStatuses(ctx context.Context, fs ...string) ([]Status, error) {
 	fp, err := os.Open(filepath.Join(s.root, "ingest"))
 	if err != nil {
 		return nil, err
@@ -149,7 +153,7 @@ func (s *store) Status(ctx context.Context, re string) ([]Status, error) {
 		return nil, err
 	}
 
-	rec, err := regexp.Compile(re)
+	filter, err := filters.ParseAll(fs...)
 	if err != nil {
 		return nil, err
 	}
@@ -174,11 +178,9 @@ func (s *store) Status(ctx context.Context, re string) ([]Status, error) {
 			continue
 		}
 
-		if !rec.MatchString(stat.Ref) {
-			continue
+		if filter.Match(adaptStatus(stat)) {
+			active = append(active, stat)
 		}
-
-		active = append(active, stat)
 	}
 
 	return active, nil
@@ -206,6 +208,20 @@ func (s *store) status(ingestPath string) (Status, error) {
 	}, nil
 }
 
+func adaptStatus(status Status) filters.Adaptor {
+	return filters.AdapterFunc(func(fieldpath []string) (string, bool) {
+		if len(fieldpath) == 0 {
+			return "", false
+		}
+		switch fieldpath[0] {
+		case "ref":
+			return status.Ref, true
+		}
+
+		return "", false
+	})
+}
+
 // total attempts to resolve the total expected size for the write.
 func (s *store) total(ingestPath string) int64 {
 	totalS, err := readFileString(filepath.Join(ingestPath, "total"))
diff --git a/differ/differ.go b/differ/differ.go
index a39cb0375..76fedcced 100644
--- a/differ/differ.go
+++ b/differ/differ.go
@@ -5,9 +5,11 @@ import (
 	"io/ioutil"
 	"os"
 
+	"github.com/boltdb/bolt"
 	"github.com/containerd/containerd/archive"
 	"github.com/containerd/containerd/archive/compression"
 	"github.com/containerd/containerd/content"
+	"github.com/containerd/containerd/metadata"
 	"github.com/containerd/containerd/mount"
 	"github.com/containerd/containerd/plugin"
 	digest "github.com/opencontainers/go-digest"
@@ -22,13 +24,18 @@ func init() {
 		ID:   "base-diff",
 		Requires: []plugin.PluginType{
 			plugin.ContentPlugin,
+			plugin.MetadataPlugin,
 		},
 		Init: func(ic *plugin.InitContext) (interface{}, error) {
 			c, err := ic.Get(plugin.ContentPlugin)
 			if err != nil {
 				return nil, err
 			}
-			return NewBaseDiff(c.(content.Store))
+			md, err := ic.Get(plugin.MetadataPlugin)
+			if err != nil {
+				return nil, err
+			}
+			return NewBaseDiff(metadata.NewContentStore(md.(*bolt.DB), c.(content.Store)))
 		},
 	})
 }
diff --git a/metadata/adaptors.go b/metadata/adaptors.go
index 25aab0323..e3df7df80 100644
--- a/metadata/adaptors.go
+++ b/metadata/adaptors.go
@@ -4,6 +4,7 @@ import (
 	"strings"
 
 	"github.com/containerd/containerd/containers"
+	"github.com/containerd/containerd/content"
 	"github.com/containerd/containerd/filters"
 	"github.com/containerd/containerd/images"
 )
@@ -69,6 +70,20 @@ func adaptContainer(o interface{}) filters.Adaptor {
 	})
 }
 
+func adaptContentStatus(status content.Status) filters.Adaptor {
+	return filters.AdapterFunc(func(fieldpath []string) (string, bool) {
+		if len(fieldpath) == 0 {
+			return "", false
+		}
+		switch fieldpath[0] {
+		case "ref":
+			return status.Ref, true
+		}
+
+		return "", false
+	})
+}
+
 func checkMap(fieldpath []string, m map[string]string) (string, bool) {
 	if len(m) == 0 {
 		return "", false
diff --git a/metadata/buckets.go b/metadata/buckets.go
index ca555f395..0ba3126bb 100644
--- a/metadata/buckets.go
+++ b/metadata/buckets.go
@@ -2,6 +2,7 @@ package metadata
 
 import (
 	"github.com/boltdb/bolt"
+	digest "github.com/opencontainers/go-digest"
 )
 
 // The layout where a "/" delineates a bucket is desribed in the following
@@ -33,6 +34,9 @@ var (
 	bucketKeyObjectImages     = []byte("images")     // stores image objects
 	bucketKeyObjectContainers = []byte("containers") // stores container objects
 	bucketKeyObjectSnapshots  = []byte("snapshots")  // stores snapshot references
+	bucketKeyObjectContent    = []byte("content")    // stores content references
+	bucketKeyObjectBlob       = []byte("blob")       // stores content links
+	bucketKeyObjectIngest     = []byte("ingest")     // stores ingest links
 
 	bucketKeyDigest    = []byte("digest")
 	bucketKeyMediaType = []byte("mediatype")
@@ -139,3 +143,31 @@ func createSnapshotterBucket(tx *bolt.Tx, namespace, snapshotter string) (*bolt.
 func getSnapshotterBucket(tx *bolt.Tx, namespace, snapshotter string) *bolt.Bucket {
 	return getBucket(tx, bucketKeyVersion, []byte(namespace), bucketKeyObjectSnapshots, []byte(snapshotter))
 }
+
+func createBlobBucket(tx *bolt.Tx, namespace string, dgst digest.Digest) (*bolt.Bucket, error) {
+	bkt, err := createBucketIfNotExists(tx, bucketKeyVersion, []byte(namespace), bucketKeyObjectContent, bucketKeyObjectBlob, []byte(dgst.String()))
+	if err != nil {
+		return nil, err
+	}
+	return bkt, nil
+}
+
+func getBlobsBucket(tx *bolt.Tx, namespace string) *bolt.Bucket {
+	return getBucket(tx, bucketKeyVersion, []byte(namespace), bucketKeyObjectContent, bucketKeyObjectBlob)
+}
+
+func getBlobBucket(tx *bolt.Tx, namespace string, dgst digest.Digest) *bolt.Bucket {
+	return getBucket(tx, bucketKeyVersion, []byte(namespace), bucketKeyObjectContent, bucketKeyObjectBlob, []byte(dgst.String()))
+}
+
+func createIngestBucket(tx *bolt.Tx, namespace string) (*bolt.Bucket, error) {
+	bkt, err := createBucketIfNotExists(tx, bucketKeyVersion, []byte(namespace), bucketKeyObjectContent, bucketKeyObjectIngest)
+	if err != nil {
+		return nil, err
+	}
+	return bkt, nil
+}
+
+func getIngestBucket(tx *bolt.Tx, namespace string) *bolt.Bucket {
+	return getBucket(tx, bucketKeyVersion, []byte(namespace), bucketKeyObjectContent, bucketKeyObjectIngest)
+}
diff --git a/metadata/content.go b/metadata/content.go
new file mode 100644
index 000000000..16aa0b3da
--- /dev/null
+++ b/metadata/content.go
@@ -0,0 +1,382 @@
+package metadata
+
+import (
+	"context"
+	"encoding/binary"
+	"io"
+
+	"github.com/boltdb/bolt"
+	"github.com/containerd/containerd/content"
+	"github.com/containerd/containerd/errdefs"
+	"github.com/containerd/containerd/filters"
+	"github.com/containerd/containerd/namespaces"
+	digest "github.com/opencontainers/go-digest"
+	"github.com/pkg/errors"
+)
+
+type contentStore struct {
+	content.Store
+	db *bolt.DB
+}
+
+// NewContentStore returns a namespaced content store using an existing
+// content store interface.
+func NewContentStore(db *bolt.DB, cs content.Store) content.Store {
+	return &contentStore{
+		Store: cs,
+		db:    db,
+	}
+}
+
+func (cs *contentStore) Info(ctx context.Context, dgst digest.Digest) (content.Info, error) {
+	ns, err := namespaces.NamespaceRequired(ctx)
+	if err != nil {
+		return content.Info{}, err
+	}
+
+	var info content.Info
+	if err := view(ctx, cs.db, func(tx *bolt.Tx) error {
+		bkt := getBlobBucket(tx, ns, dgst)
+		if bkt == nil {
+			return errors.Wrapf(errdefs.ErrNotFound, "content digest %v", dgst)
+		}
+
+		info.Digest = dgst
+		return readInfo(&info, bkt)
+	}); err != nil {
+		return content.Info{}, err
+	}
+
+	return info, nil
+}
+
+func (cs *contentStore) Walk(ctx context.Context, fn content.WalkFunc) error {
+	ns, err := namespaces.NamespaceRequired(ctx)
+	if err != nil {
+		return err
+	}
+
+	// TODO: Batch results to keep from reading all info into memory
+	var infos []content.Info
+	if err := view(ctx, cs.db, func(tx *bolt.Tx) error {
+		bkt := getBlobsBucket(tx, ns)
+		if bkt == nil {
+			return nil
+		}
+
+		return bkt.ForEach(func(k, v []byte) error {
+			dgst, err := digest.Parse(string(k))
+			if err != nil {
+				return nil
+			}
+			info := content.Info{
+				Digest: dgst,
+			}
+			if err := readInfo(&info, bkt.Bucket(k)); err != nil {
+				return err
+			}
+			infos = append(infos, info)
+			return nil
+		})
+	}); err != nil {
+		return err
+	}
+
+	for _, info := range infos {
+		if err := fn(info); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (cs *contentStore) Delete(ctx context.Context, dgst digest.Digest) error {
+	ns, err := namespaces.NamespaceRequired(ctx)
+	if err != nil {
+		return err
+	}
+
+	return update(ctx, cs.db, func(tx *bolt.Tx) error {
+		bkt := getBlobBucket(tx, ns, dgst)
+		if bkt == nil {
+			return errors.Wrapf(errdefs.ErrNotFound, "content digest %v", dgst)
+		}
+
+		// Just remove local reference, garbage collector is responsible for
+		// cleaning up on disk content
+		return getBlobsBucket(tx, ns).Delete([]byte(dgst.String()))
+	})
+}
+
+func (cs *contentStore) ListStatuses(ctx context.Context, fs ...string) ([]content.Status, error) {
+	ns, err := namespaces.NamespaceRequired(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	filter, err := filters.ParseAll(fs...)
+	if err != nil {
+		return nil, err
+	}
+
+	brefs := map[string]string{}
+	if err := view(ctx, cs.db, func(tx *bolt.Tx) error {
+		bkt := getIngestBucket(tx, ns)
+		if bkt == nil {
+			return nil
+		}
+
+		return bkt.ForEach(func(k, v []byte) error {
+			// TODO(dmcgowan): match name and potentially labels here
+			brefs[string(k)] = string(v)
+			return nil
+		})
+	}); err != nil {
+		return nil, err
+	}
+
+	statuses := make([]content.Status, 0, len(brefs))
+	for k, bref := range brefs {
+		status, err := cs.Store.Status(ctx, bref)
+		if err != nil {
+			if errdefs.IsNotFound(err) {
+				continue
+			}
+			return nil, err
+		}
+		status.Ref = k
+
+		if filter.Match(adaptContentStatus(status)) {
+			statuses = append(statuses, status)
+		}
+	}
+
+	return statuses, nil
+
+}
+
+func getRef(tx *bolt.Tx, ns, ref string) string {
+	bkt := getIngestBucket(tx, ns)
+	if bkt == nil {
+		return ""
+	}
+	v := bkt.Get([]byte(ref))
+	if len(v) == 0 {
+		return ""
+	}
+	return string(v)
+}
+
+func (cs *contentStore) Status(ctx context.Context, ref string) (content.Status, error) {
+	ns, err := namespaces.NamespaceRequired(ctx)
+	if err != nil {
+		return content.Status{}, err
+	}
+
+	var bref string
+	if err := view(ctx, cs.db, func(tx *bolt.Tx) error {
+		bref = getRef(tx, ns, ref)
+		if bref == "" {
+			return errors.Wrapf(errdefs.ErrNotFound, "reference %v", ref)
+		}
+
+		return nil
+	}); err != nil {
+		return content.Status{}, err
+	}
+
+	return cs.Store.Status(ctx, bref)
+}
+
+func (cs *contentStore) Abort(ctx context.Context, ref string) error {
+	ns, err := namespaces.NamespaceRequired(ctx)
+	if err != nil {
+		return err
+	}
+
+	return update(ctx, cs.db, func(tx *bolt.Tx) error {
+		bkt := getIngestBucket(tx, ns)
+		if bkt == nil {
+			return errors.Wrapf(errdefs.ErrNotFound, "reference %v", ref)
+		}
+		bref := string(bkt.Get([]byte(ref)))
+		if bref == "" {
+			return errors.Wrapf(errdefs.ErrNotFound, "reference %v", ref)
+		}
+		if err := bkt.Delete([]byte(ref)); err != nil {
+			return err
+		}
+
+		return cs.Store.Abort(ctx, bref)
+	})
+
+}
+
+func (cs *contentStore) Writer(ctx context.Context, ref string, size int64, expected digest.Digest) (content.Writer, error) {
+	ns, err := namespaces.NamespaceRequired(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	var w content.Writer
+	if err := update(ctx, cs.db, func(tx *bolt.Tx) error {
+		if expected != "" {
+			cbkt := getBlobBucket(tx, ns, expected)
+			if cbkt != nil {
+				return errors.Wrapf(errdefs.ErrAlreadyExists, "content %v", expected)
+			}
+		}
+
+		bkt, err := createIngestBucket(tx, ns)
+		if err != nil {
+			return err
+		}
+
+		if len(bkt.Get([]byte(ref))) > 0 {
+			return errors.Wrapf(errdefs.ErrUnavailable, "ref %v is currently in use", ref)
+		}
+
+		sid, err := bkt.NextSequence()
+		if err != nil {
+			return err
+		}
+
+		bref := createKey(sid, ns, ref)
+		if err := bkt.Put([]byte(ref), []byte(bref)); err != nil {
+			return err
+		}
+
+		// Do not use the passed in expected value here since it was
+		// already checked against the user metadata. If the content
+		// store has the content, it must still be written before
+		// linked into the given namespace. It is possible in the future
+		// to allow content which exists in content store but not
+		// namespace to be linked here and returned an exist error, but
+		// this would require more configuration to make secure.
+		w, err = cs.Store.Writer(ctx, bref, size, "")
+		return err
+	}); err != nil {
+		return nil, err
+	}
+
+	// TODO: keep the expected in the writer to use on commit
+	// when no expected is provided there.
+	return &namespacedWriter{
+		Writer:    w,
+		ref:       ref,
+		namespace: ns,
+		db:        cs.db,
+	}, nil
+}
+
+type namespacedWriter struct {
+	content.Writer
+	ref       string
+	namespace string
+	db        *bolt.DB
+}
+
+func (nw *namespacedWriter) Commit(size int64, expected digest.Digest) error {
+	return nw.db.Update(func(tx *bolt.Tx) error {
+		bkt := getIngestBucket(tx, nw.namespace)
+		if bkt != nil {
+			if err := bkt.Delete([]byte(nw.ref)); err != nil {
+				return err
+			}
+		}
+		return nw.commit(tx, size, expected)
+	})
+}
+
+func (nw *namespacedWriter) commit(tx *bolt.Tx, size int64, expected digest.Digest) error {
+	status, err := nw.Writer.Status()
+	if err != nil {
+		return err
+	}
+	if size != 0 && size != status.Offset {
+		return errors.Errorf("%q failed size validation: %v != %v", nw.ref, status.Offset, size)
+	}
+	size = status.Offset
+
+	actual := nw.Writer.Digest()
+
+	if err := nw.Writer.Commit(size, expected); err != nil {
+		if !errdefs.IsAlreadyExists(err) {
+			return err
+		}
+		if getBlobBucket(tx, nw.namespace, actual) != nil {
+			return errors.Wrapf(errdefs.ErrAlreadyExists, "content %v", actual)
+		}
+	}
+
+	bkt, err := createBlobBucket(tx, nw.namespace, actual)
+	if err != nil {
+		return err
+	}
+
+	sizeEncoded, err := encodeSize(size)
+	if err != nil {
+		return err
+	}
+
+	timeEncoded, err := status.UpdatedAt.MarshalBinary()
+	if err != nil {
+		return err
+	}
+
+	for _, v := range [][2][]byte{
+		{bucketKeyCreatedAt, timeEncoded},
+		{bucketKeySize, sizeEncoded},
+	} {
+		if err := bkt.Put(v[0], v[1]); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (cs *contentStore) Reader(ctx context.Context, dgst digest.Digest) (io.ReadCloser, error) {
+	if err := cs.checkAccess(ctx, dgst); err != nil {
+		return nil, err
+	}
+	return cs.Store.Reader(ctx, dgst)
+}
+
+func (cs *contentStore) ReaderAt(ctx context.Context, dgst digest.Digest) (io.ReaderAt, error) {
+	if err := cs.checkAccess(ctx, dgst); err != nil {
+		return nil, err
+	}
+	return cs.Store.ReaderAt(ctx, dgst)
+}
+
+func (cs *contentStore) checkAccess(ctx context.Context, dgst digest.Digest) error {
+	ns, err := namespaces.NamespaceRequired(ctx)
+	if err != nil {
+		return err
+	}
+
+	return view(ctx, cs.db, func(tx *bolt.Tx) error {
+		bkt := getBlobBucket(tx, ns, dgst)
+		if bkt == nil {
+			return errors.Wrapf(errdefs.ErrNotFound, "content digest %v", dgst)
+		}
+		return nil
+	})
+}
+
+func readInfo(info *content.Info, bkt *bolt.Bucket) error {
+	return bkt.ForEach(func(k, v []byte) error {
+		switch string(k) {
+		case string(bucketKeyCreatedAt):
+			if err := info.CommittedAt.UnmarshalBinary(v); err != nil {
+				return err
+			}
+		case string(bucketKeySize):
+			info.Size, _ = binary.Varint(v)
+		}
+		// TODO: Read labels
+		return nil
+	})
+}
diff --git a/metadata/images.go b/metadata/images.go
index 97e6cc2af..b09529eab 100644
--- a/metadata/images.go
+++ b/metadata/images.go
@@ -244,14 +244,9 @@ func writeImage(bkt *bolt.Bucket, image *images.Image) error {
 		return err
 	}
 
-	var (
-		buf         [binary.MaxVarintLen64]byte
-		sizeEncoded []byte = buf[:]
-	)
-	sizeEncoded = sizeEncoded[:binary.PutVarint(sizeEncoded, image.Target.Size)]
-
-	if len(sizeEncoded) == 0 {
-		return fmt.Errorf("failed encoding size = %v", image.Target.Size)
+	sizeEncoded, err := encodeSize(image.Target.Size)
+	if err != nil {
+		return err
 	}
 
 	for _, v := range [][2][]byte{
@@ -266,3 +261,16 @@ func writeImage(bkt *bolt.Bucket, image *images.Image) error {
 
 	return nil
 }
+
+func encodeSize(size int64) ([]byte, error) {
+	var (
+		buf         [binary.MaxVarintLen64]byte
+		sizeEncoded []byte = buf[:]
+	)
+	sizeEncoded = sizeEncoded[:binary.PutVarint(sizeEncoded, size)]
+
+	if len(sizeEncoded) == 0 {
+		return nil, fmt.Errorf("failed encoding size = %v", size)
+	}
+	return sizeEncoded, nil
+}
diff --git a/metadata/snapshot.go b/metadata/snapshot.go
index 0ac3133ef..f2267ec53 100644
--- a/metadata/snapshot.go
+++ b/metadata/snapshot.go
@@ -29,11 +29,11 @@ func NewSnapshotter(db *bolt.DB, name string, sn snapshot.Snapshotter) snapshot.
 	}
 }
 
-func snapshotKey(id uint64, namespace, key string) string {
+func createKey(id uint64, namespace, key string) string {
 	return fmt.Sprintf("%s/%d/%s", namespace, id, key)
 }
 
-func trimName(key string) string {
+func trimKey(key string) string {
 	parts := strings.SplitN(key, "/", 3)
 	if len(parts) < 3 {
 		return ""
@@ -82,9 +82,9 @@ func (s *snapshotter) Stat(ctx context.Context, key string) (snapshot.Info, erro
 	if err != nil {
 		return snapshot.Info{}, err
 	}
-	info.Name = trimName(info.Name)
+	info.Name = trimKey(info.Name)
 	if info.Parent != "" {
-		info.Parent = trimName(info.Parent)
+		info.Parent = trimKey(info.Parent)
 	}
 
 	return info, nil
@@ -143,7 +143,7 @@ func (s *snapshotter) createSnapshot(ctx context.Context, key, parent string, re
 		if err != nil {
 			return err
 		}
-		bkey = snapshotKey(sid, ns, key)
+		bkey = createKey(sid, ns, key)
 		if err := bkt.Put([]byte(key), []byte(bkey)); err != nil {
 			return err
 		}
@@ -188,7 +188,7 @@ func (s *snapshotter) Commit(ctx context.Context, name, key string) error {
 		if err != nil {
 			return err
 		}
-		nameKey = snapshotKey(sid, ns, name)
+		nameKey = createKey(sid, ns, name)
 		if err := bkt.Put([]byte(name), []byte(nameKey)); err != nil {
 			return err
 		}
@@ -259,9 +259,9 @@ func (s *snapshotter) Walk(ctx context.Context, fn func(context.Context, snapsho
 			return err
 		}
 
-		info.Name = trimName(info.Name)
+		info.Name = trimKey(info.Name)
 		if info.Parent != "" {
-			info.Parent = trimName(info.Parent)
+			info.Parent = trimKey(info.Parent)
 		}
 		if err := fn(ctx, info); err != nil {
 			return err
diff --git a/services/content/service.go b/services/content/service.go
index 322d956da..affdc4386 100644
--- a/services/content/service.go
+++ b/services/content/service.go
@@ -5,12 +5,14 @@ import (
 	"sync"
 
 	"github.com/Sirupsen/logrus"
+	"github.com/boltdb/bolt"
 	api "github.com/containerd/containerd/api/services/content/v1"
 	eventsapi "github.com/containerd/containerd/api/services/events/v1"
 	"github.com/containerd/containerd/content"
 	"github.com/containerd/containerd/errdefs"
 	"github.com/containerd/containerd/events"
 	"github.com/containerd/containerd/log"
+	"github.com/containerd/containerd/metadata"
 	"github.com/containerd/containerd/plugin"
 	"github.com/golang/protobuf/ptypes/empty"
 	digest "github.com/opencontainers/go-digest"
@@ -39,6 +41,7 @@ func init() {
 		ID:   "content",
 		Requires: []plugin.PluginType{
 			plugin.ContentPlugin,
+			plugin.MetadataPlugin,
 		},
 		Init: NewService,
 	})
@@ -49,8 +52,13 @@ func NewService(ic *plugin.InitContext) (interface{}, error) {
 	if err != nil {
 		return nil, err
 	}
+	m, err := ic.Get(plugin.MetadataPlugin)
+	if err != nil {
+		return nil, err
+	}
+	cs := metadata.NewContentStore(m.(*bolt.DB), c.(content.Store))
 	return &Service{
-		store:   c.(content.Store),
+		store:   cs,
 		emitter: events.GetPoster(ic.Context),
 	}, nil
 }
@@ -216,12 +224,31 @@ func (rw *readResponseWriter) Write(p []byte) (n int, err error) {
 }
 
 func (s *Service) Status(ctx context.Context, req *api.StatusRequest) (*api.StatusResponse, error) {
-	statuses, err := s.store.Status(ctx, req.Filter)
+	status, err := s.store.Status(ctx, req.Ref)
 	if err != nil {
-		return nil, errdefs.ToGRPCf(err, "could not get status for filter %q", req.Filter)
+		return nil, errdefs.ToGRPCf(err, "could not get status for ref %q", req.Ref)
 	}
 
 	var resp api.StatusResponse
+	resp.Status = &api.Status{
+		StartedAt: status.StartedAt,
+		UpdatedAt: status.UpdatedAt,
+		Ref:       status.Ref,
+		Offset:    status.Offset,
+		Total:     status.Total,
+		Expected:  status.Expected,
+	}
+
+	return &resp, nil
+}
+
+func (s *Service) ListStatuses(ctx context.Context, req *api.ListStatusesRequest) (*api.ListStatusesResponse, error) {
+	statuses, err := s.store.ListStatuses(ctx, req.Filters...)
+	if err != nil {
+		return nil, errdefs.ToGRPC(err)
+	}
+
+	var resp api.ListStatusesResponse
 	for _, status := range statuses {
 		resp.Statuses = append(resp.Statuses, api.Status{
 			StartedAt: status.StartedAt,
diff --git a/services/content/store.go b/services/content/store.go
index 2153e3d6e..f03d429f9 100644
--- a/services/content/store.go
+++ b/services/content/store.go
@@ -94,9 +94,28 @@ func (rs *remoteStore) ReaderAt(ctx context.Context, dgst digest.Digest) (io.Rea
 	}, nil
 }
 
-func (rs *remoteStore) Status(ctx context.Context, filter string) ([]content.Status, error) {
+func (rs *remoteStore) Status(ctx context.Context, ref string) (content.Status, error) {
 	resp, err := rs.client.Status(ctx, &contentapi.StatusRequest{
-		Filter: filter,
+		Ref: ref,
+	})
+	if err != nil {
+		return content.Status{}, errdefs.FromGRPC(err)
+	}
+
+	status := resp.Status
+	return content.Status{
+		Ref:       status.Ref,
+		StartedAt: status.StartedAt,
+		UpdatedAt: status.UpdatedAt,
+		Offset:    status.Offset,
+		Total:     status.Total,
+		Expected:  status.Expected,
+	}, nil
+}
+
+func (rs *remoteStore) ListStatuses(ctx context.Context, filters ...string) ([]content.Status, error) {
+	resp, err := rs.client.ListStatuses(ctx, &contentapi.ListStatusesRequest{
+		Filters: filters,
 	})
 	if err != nil {
 		return nil, errdefs.FromGRPC(err)
diff --git a/services/diff/service.go b/services/diff/service.go
index b97908ace..b4d1a150b 100644
--- a/services/diff/service.go
+++ b/services/diff/service.go
@@ -3,6 +3,7 @@ package diff
 import (
 	diffapi "github.com/containerd/containerd/api/services/diff/v1"
 	"github.com/containerd/containerd/api/types"
+	"github.com/containerd/containerd/errdefs"
 	"github.com/containerd/containerd/mount"
 	"github.com/containerd/containerd/plugin"
 	"golang.org/x/net/context"
@@ -45,7 +46,7 @@ func (s *service) Apply(ctx context.Context, er *diffapi.ApplyRequest) (*diffapi
 
 	ocidesc, err := s.diff.Apply(ctx, desc, mounts)
 	if err != nil {
-		return nil, err
+		return nil, errdefs.ToGRPC(err)
 	}
 
 	return &diffapi.ApplyResponse{
@@ -60,7 +61,7 @@ func (s *service) Diff(ctx context.Context, dr *diffapi.DiffRequest) (*diffapi.D
 
 	ocidesc, err := s.diff.DiffMounts(ctx, aMounts, bMounts, dr.MediaType, dr.Ref)
 	if err != nil {
-		return nil, err
+		return nil, errdefs.ToGRPC(err)
 	}
 
 	return &diffapi.DiffResponse{
diff --git a/services/tasks/service.go b/services/tasks/service.go
index 63a273872..81bd61910 100644
--- a/services/tasks/service.go
+++ b/services/tasks/service.go
@@ -62,6 +62,7 @@ func New(ic *plugin.InitContext) (interface{}, error) {
 	if err != nil {
 		return nil, err
 	}
+	cs := metadata.NewContentStore(m.(*bolt.DB), ct.(content.Store))
 	runtimes := make(map[string]runtime.Runtime)
 	for _, rr := range rt {
 		r := rr.(runtime.Runtime)
@@ -71,7 +72,7 @@ func New(ic *plugin.InitContext) (interface{}, error) {
 	return &Service{
 		runtimes: runtimes,
 		db:       m.(*bolt.DB),
-		store:    ct.(content.Store),
+		store:    cs,
 		emitter:  e,
 	}, nil
 }
diff --git a/task.go b/task.go
index bfbaa6453..60f894686 100644
--- a/task.go
+++ b/task.go
@@ -346,7 +346,7 @@ func writeContent(ctx context.Context, store content.Store, mediaType, ref strin
 	if err != nil {
 		return d, err
 	}
-	if err := writer.Commit(0, ""); err != nil {
+	if err := writer.Commit(size, ""); err != nil {
 		return d, err
 	}
 	return v1.Descriptor{