diff --git a/data/block/block.go b/data/block/block.go
index 0ac8fd2a..c601bb71 100644
--- a/data/block/block.go
+++ b/data/block/block.go
@@ -14,7 +14,7 @@ var _ = data.HeaderHandler(&Header{})
 var _ = data.ShardHeaderHandler(&Header{})
 
 // MiniBlockSlice should be used when referring to subset of mini blocks that is not
-//  necessarily representing a full block body
+// necessarily representing a full block body
 type MiniBlockSlice []*MiniBlock
 
 // MiniblockAndHash holds the info related to a miniblock and its hash
@@ -615,3 +615,14 @@ func (h *Header) CheckFieldsForNil() error {
 
 	return nil
 }
+
+// GetPreviousAggregatedSignatureAndBitmap returns the previous aggregated signature and the previous pubkeys bitmap
+func (h *Header) GetPreviousAggregatedSignatureAndBitmap() ([]byte, []byte) {
+	// no proof for the initial header
+	return nil, nil
+}
+
+// SetPreviousAggregatedSignatureAndBitmap sets the previous aggregated signature and the previous pubkeys bitmap
+func (h *Header) SetPreviousAggregatedSignatureAndBitmap(_ []byte, _ []byte) {
+	// no proof for the initial header
+}
diff --git a/data/block/blockV2.go b/data/block/blockV2.go
index 0a690e2e..08a1acaa 100644
--- a/data/block/blockV2.go
+++ b/data/block/blockV2.go
@@ -650,3 +650,19 @@ func (hv2 *HeaderV2) CheckFieldsForNil() error {
 
 	return nil
 }
+
+// GetPreviousAggregatedSignatureAndBitmap returns the previous aggregated signature and the previous pubkeys bitmap
+func (hv2 *HeaderV2) GetPreviousAggregatedSignatureAndBitmap() ([]byte, []byte) {
+	if hv2.PreviousHeaderProof == nil {
+		return nil, nil
+	}
+	return hv2.PreviousHeaderProof.AggregatedSignature, hv2.PreviousHeaderProof.PubKeysBitmap
+}
+
+// SetPreviousAggregatedSignatureAndBitmap sets the previous aggregated signature and the previous pubkeys bitmap
+func (hv2 *HeaderV2) SetPreviousAggregatedSignatureAndBitmap(aggregatedSignature []byte, pubKeysBitmap []byte) {
+	hv2.PreviousHeaderProof = &PreviousHeaderProof{
+		PubKeysBitmap:       pubKeysBitmap,
+		AggregatedSignature: aggregatedSignature,
+	}
+}
diff --git a/data/block/blockV2.pb.go b/data/block/blockV2.pb.go
index a7a2eaca..add958a5 100644
--- a/data/block/blockV2.pb.go
+++ b/data/block/blockV2.pb.go
@@ -30,13 +30,14 @@ const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package
 
 // HeaderV2 extends the Header structure with extra fields for version 2
 type HeaderV2 struct {
-	Header                   *Header       `protobuf:"bytes,1,opt,name=Header,proto3" json:"header,omitempty"`
-	ScheduledRootHash        []byte        `protobuf:"bytes,2,opt,name=ScheduledRootHash,proto3" json:"scheduledRootHash,omitempty"`
-	ScheduledAccumulatedFees *math_big.Int `protobuf:"bytes,3,opt,name=ScheduledAccumulatedFees,proto3,casttypewith=math/big.Int;github.com/multiversx/mx-chain-core-go/data.BigIntCaster" json:"scheduledAccumulatedFees,omitempty"`
-	ScheduledDeveloperFees   *math_big.Int `protobuf:"bytes,4,opt,name=ScheduledDeveloperFees,proto3,casttypewith=math/big.Int;github.com/multiversx/mx-chain-core-go/data.BigIntCaster" json:"scheduledDeveloperFees,omitempty"`
-	ScheduledGasProvided     uint64        `protobuf:"varint,5,opt,name=ScheduledGasProvided,proto3" json:"scheduledGasProvided"`
-	ScheduledGasPenalized    uint64        `protobuf:"varint,6,opt,name=ScheduledGasPenalized,proto3" json:"scheduledGasPenalized"`
-	ScheduledGasRefunded     uint64        `protobuf:"varint,7,opt,name=ScheduledGasRefunded,proto3" json:"scheduledGasRefunded"`
+	Header                   *Header              `protobuf:"bytes,1,opt,name=Header,proto3" json:"header,omitempty"`
+	ScheduledRootHash        []byte               `protobuf:"bytes,2,opt,name=ScheduledRootHash,proto3" json:"scheduledRootHash,omitempty"`
+	ScheduledAccumulatedFees *math_big.Int        `protobuf:"bytes,3,opt,name=ScheduledAccumulatedFees,proto3,casttypewith=math/big.Int;github.com/multiversx/mx-chain-core-go/data.BigIntCaster" json:"scheduledAccumulatedFees,omitempty"`
+	ScheduledDeveloperFees   *math_big.Int        `protobuf:"bytes,4,opt,name=ScheduledDeveloperFees,proto3,casttypewith=math/big.Int;github.com/multiversx/mx-chain-core-go/data.BigIntCaster" json:"scheduledDeveloperFees,omitempty"`
+	ScheduledGasProvided     uint64               `protobuf:"varint,5,opt,name=ScheduledGasProvided,proto3" json:"scheduledGasProvided"`
+	ScheduledGasPenalized    uint64               `protobuf:"varint,6,opt,name=ScheduledGasPenalized,proto3" json:"scheduledGasPenalized"`
+	ScheduledGasRefunded     uint64               `protobuf:"varint,7,opt,name=ScheduledGasRefunded,proto3" json:"scheduledGasRefunded"`
+	PreviousHeaderProof      *PreviousHeaderProof `protobuf:"bytes,8,opt,name=PreviousHeaderProof,proto3" json:"previousHeaderProof"`
 }
 
 func (m *HeaderV2) Reset()      { *m = HeaderV2{} }
@@ -116,6 +117,13 @@ func (m *HeaderV2) GetScheduledGasRefunded() uint64 {
 	return 0
 }
 
+func (m *HeaderV2) GetPreviousHeaderProof() *PreviousHeaderProof {
+	if m != nil {
+		return m.PreviousHeaderProof
+	}
+	return nil
+}
+
 type MiniBlockReserved struct {
 	ExecutionType    ProcessingType `protobuf:"varint,1,opt,name=ExecutionType,proto3,enum=proto.ProcessingType" json:"executionType"`
 	TransactionsType []byte         `protobuf:"bytes,2,opt,name=TransactionsType,proto3" json:"transactionsType"`
@@ -226,55 +234,110 @@ func (m *MiniBlockHeaderReserved) GetIndexOfLastTxProcessed() int32 {
 	return 0
 }
 
+// PreviousHeaderProof defines a header proof
+type PreviousHeaderProof struct {
+	PubKeysBitmap       []byte `protobuf:"bytes,1,opt,name=PubKeysBitmap,proto3" json:"pubKeysBitmap"`
+	AggregatedSignature []byte `protobuf:"bytes,2,opt,name=AggregatedSignature,proto3" json:"aggregatedSignature"`
+}
+
+func (m *PreviousHeaderProof) Reset()      { *m = PreviousHeaderProof{} }
+func (*PreviousHeaderProof) ProtoMessage() {}
+func (*PreviousHeaderProof) Descriptor() ([]byte, []int) {
+	return fileDescriptor_17a3844aa051366e, []int{3}
+}
+func (m *PreviousHeaderProof) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *PreviousHeaderProof) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	b = b[:cap(b)]
+	n, err := m.MarshalToSizedBuffer(b)
+	if err != nil {
+		return nil, err
+	}
+	return b[:n], nil
+}
+func (m *PreviousHeaderProof) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_PreviousHeaderProof.Merge(m, src)
+}
+func (m *PreviousHeaderProof) XXX_Size() int {
+	return m.Size()
+}
+func (m *PreviousHeaderProof) XXX_DiscardUnknown() {
+	xxx_messageInfo_PreviousHeaderProof.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_PreviousHeaderProof proto.InternalMessageInfo
+
+func (m *PreviousHeaderProof) GetPubKeysBitmap() []byte {
+	if m != nil {
+		return m.PubKeysBitmap
+	}
+	return nil
+}
+
+func (m *PreviousHeaderProof) GetAggregatedSignature() []byte {
+	if m != nil {
+		return m.AggregatedSignature
+	}
+	return nil
+}
+
 func init() {
 	proto.RegisterType((*HeaderV2)(nil), "proto.HeaderV2")
 	proto.RegisterType((*MiniBlockReserved)(nil), "proto.MiniBlockReserved")
 	proto.RegisterType((*MiniBlockHeaderReserved)(nil), "proto.MiniBlockHeaderReserved")
+	proto.RegisterType((*PreviousHeaderProof)(nil), "proto.PreviousHeaderProof")
 }
 
 func init() { proto.RegisterFile("blockV2.proto", fileDescriptor_17a3844aa051366e) }
 
 var fileDescriptor_17a3844aa051366e = []byte{
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+	0xf6, 0xd2, 0xbe, 0xc2, 0xc5, 0x76, 0xd8, 0xf9, 0x01, 0x6e, 0x84, 0xc5, 0xa4, 0x47, 0x07, 0xea,
+	0x2a, 0x37, 0xd2, 0x3b, 0x1b, 0xcc, 0x02, 0x64, 0x9e, 0xa7, 0xb5, 0xf0, 0xf6, 0x91, 0xeb, 0x06,
+	0xe0, 0x8e, 0x7f, 0x55, 0x2e, 0x99, 0xeb, 0x53, 0x19, 0x06, 0xcf, 0x8f, 0xac, 0x5a, 0x92, 0x2e,
+	0xc2, 0x24, 0x4b, 0x63, 0x7d, 0x7d, 0xf7, 0x60, 0xe4, 0xee, 0x1f, 0x8c, 0xdc, 0xd3, 0x83, 0x81,
+	0x7e, 0x8b, 0x0d, 0xf4, 0x67, 0x6c, 0xa0, 0x7f, 0x63, 0x03, 0xdd, 0xc5, 0x06, 0xba, 0x8f, 0x0d,
+	0xf4, 0x2e, 0x36, 0xd0, 0xfb, 0xd8, 0xc8, 0x3d, 0xc5, 0x06, 0xfa, 0xfd, 0xd1, 0xc8, 0xdd, 0x3d,
+	0x1a, 0xb9, 0xfb, 0x47, 0x23, 0xf7, 0x73, 0x5e, 0xfd, 0x39, 0x74, 0x0a, 0xea, 0xbd, 0xbe, 0xf8,
+	0x10, 0x00, 0x00, 0xff, 0xff, 0xa8, 0xe3, 0xe1, 0x73, 0x71, 0x06, 0x00, 0x00,
 }
 
 func (this *HeaderV2) Equal(that interface{}) bool {
@@ -323,6 +386,9 @@ func (this *HeaderV2) Equal(that interface{}) bool {
 	if this.ScheduledGasRefunded != that1.ScheduledGasRefunded {
 		return false
 	}
+	if !this.PreviousHeaderProof.Equal(that1.PreviousHeaderProof) {
+		return false
+	}
 	return true
 }
 func (this *MiniBlockReserved) Equal(that interface{}) bool {
@@ -385,11 +451,38 @@ func (this *MiniBlockHeaderReserved) Equal(that interface{}) bool {
 	}
 	return true
 }
+func (this *PreviousHeaderProof) Equal(that interface{}) bool {
+	if that == nil {
+		return this == nil
+	}
+
+	that1, ok := that.(*PreviousHeaderProof)
+	if !ok {
+		that2, ok := that.(PreviousHeaderProof)
+		if ok {
+			that1 = &that2
+		} else {
+			return false
+		}
+	}
+	if that1 == nil {
+		return this == nil
+	} else if this == nil {
+		return false
+	}
+	if !bytes.Equal(this.PubKeysBitmap, that1.PubKeysBitmap) {
+		return false
+	}
+	if !bytes.Equal(this.AggregatedSignature, that1.AggregatedSignature) {
+		return false
+	}
+	return true
+}
 func (this *HeaderV2) GoString() string {
 	if this == nil {
 		return "nil"
 	}
-	s := make([]string, 0, 11)
+	s := make([]string, 0, 12)
 	s = append(s, "&block.HeaderV2{")
 	if this.Header != nil {
 		s = append(s, "Header: "+fmt.Sprintf("%#v", this.Header)+",\n")
@@ -400,6 +493,9 @@ func (this *HeaderV2) GoString() string {
 	s = append(s, "ScheduledGasProvided: "+fmt.Sprintf("%#v", this.ScheduledGasProvided)+",\n")
 	s = append(s, "ScheduledGasPenalized: "+fmt.Sprintf("%#v", this.ScheduledGasPenalized)+",\n")
 	s = append(s, "ScheduledGasRefunded: "+fmt.Sprintf("%#v", this.ScheduledGasRefunded)+",\n")
+	if this.PreviousHeaderProof != nil {
+		s = append(s, "PreviousHeaderProof: "+fmt.Sprintf("%#v", this.PreviousHeaderProof)+",\n")
+	}
 	s = append(s, "}")
 	return strings.Join(s, "")
 }
@@ -427,6 +523,17 @@ func (this *MiniBlockHeaderReserved) GoString() string {
 	s = append(s, "}")
 	return strings.Join(s, "")
 }
+func (this *PreviousHeaderProof) GoString() string {
+	if this == nil {
+		return "nil"
+	}
+	s := make([]string, 0, 6)
+	s = append(s, "&block.PreviousHeaderProof{")
+	s = append(s, "PubKeysBitmap: "+fmt.Sprintf("%#v", this.PubKeysBitmap)+",\n")
+	s = append(s, "AggregatedSignature: "+fmt.Sprintf("%#v", this.AggregatedSignature)+",\n")
+	s = append(s, "}")
+	return strings.Join(s, "")
+}
 func valueToGoStringBlockV2(v interface{}, typ string) string {
 	rv := reflect.ValueOf(v)
 	if rv.IsNil() {
@@ -455,6 +562,18 @@ func (m *HeaderV2) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
+	if m.PreviousHeaderProof != nil {
+		{
+			size, err := m.PreviousHeaderProof.MarshalToSizedBuffer(dAtA[:i])
+			if err != nil {
+				return 0, err
+			}
+			i -= size
+			i = encodeVarintBlockV2(dAtA, i, uint64(size))
+		}
+		i--
+		dAtA[i] = 0x42
+	}
 	if m.ScheduledGasRefunded != 0 {
 		i = encodeVarintBlockV2(dAtA, i, uint64(m.ScheduledGasRefunded))
 		i--
@@ -592,6 +711,43 @@ func (m *MiniBlockHeaderReserved) MarshalToSizedBuffer(dAtA []byte) (int, error)
 	return len(dAtA) - i, nil
 }
 
+func (m *PreviousHeaderProof) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *PreviousHeaderProof) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *PreviousHeaderProof) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if len(m.AggregatedSignature) > 0 {
+		i -= len(m.AggregatedSignature)
+		copy(dAtA[i:], m.AggregatedSignature)
+		i = encodeVarintBlockV2(dAtA, i, uint64(len(m.AggregatedSignature)))
+		i--
+		dAtA[i] = 0x12
+	}
+	if len(m.PubKeysBitmap) > 0 {
+		i -= len(m.PubKeysBitmap)
+		copy(dAtA[i:], m.PubKeysBitmap)
+		i = encodeVarintBlockV2(dAtA, i, uint64(len(m.PubKeysBitmap)))
+		i--
+		dAtA[i] = 0xa
+	}
+	return len(dAtA) - i, nil
+}
+
 func encodeVarintBlockV2(dAtA []byte, offset int, v uint64) int {
 	offset -= sovBlockV2(v)
 	base := offset
@@ -636,6 +792,10 @@ func (m *HeaderV2) Size() (n int) {
 	if m.ScheduledGasRefunded != 0 {
 		n += 1 + sovBlockV2(uint64(m.ScheduledGasRefunded))
 	}
+	if m.PreviousHeaderProof != nil {
+		l = m.PreviousHeaderProof.Size()
+		n += 1 + l + sovBlockV2(uint64(l))
+	}
 	return n
 }
 
@@ -676,6 +836,23 @@ func (m *MiniBlockHeaderReserved) Size() (n int) {
 	return n
 }
 
+func (m *PreviousHeaderProof) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	l = len(m.PubKeysBitmap)
+	if l > 0 {
+		n += 1 + l + sovBlockV2(uint64(l))
+	}
+	l = len(m.AggregatedSignature)
+	if l > 0 {
+		n += 1 + l + sovBlockV2(uint64(l))
+	}
+	return n
+}
+
 func sovBlockV2(x uint64) (n int) {
 	return (math_bits.Len64(x|1) + 6) / 7
 }
@@ -694,6 +871,7 @@ func (this *HeaderV2) String() string {
 		`ScheduledGasProvided:` + fmt.Sprintf("%v", this.ScheduledGasProvided) + `,`,
 		`ScheduledGasPenalized:` + fmt.Sprintf("%v", this.ScheduledGasPenalized) + `,`,
 		`ScheduledGasRefunded:` + fmt.Sprintf("%v", this.ScheduledGasRefunded) + `,`,
+		`PreviousHeaderProof:` + strings.Replace(this.PreviousHeaderProof.String(), "PreviousHeaderProof", "PreviousHeaderProof", 1) + `,`,
 		`}`,
 	}, "")
 	return s
@@ -722,6 +900,17 @@ func (this *MiniBlockHeaderReserved) String() string {
 	}, "")
 	return s
 }
+func (this *PreviousHeaderProof) String() string {
+	if this == nil {
+		return "nil"
+	}
+	s := strings.Join([]string{`&PreviousHeaderProof{`,
+		`PubKeysBitmap:` + fmt.Sprintf("%v", this.PubKeysBitmap) + `,`,
+		`AggregatedSignature:` + fmt.Sprintf("%v", this.AggregatedSignature) + `,`,
+		`}`,
+	}, "")
+	return s
+}
 func valueToStringBlockV2(v interface{}) string {
 	rv := reflect.ValueOf(v)
 	if rv.IsNil() {
@@ -962,6 +1151,42 @@ func (m *HeaderV2) Unmarshal(dAtA []byte) error {
 					break
 				}
 			}
+		case 8:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field PreviousHeaderProof", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowBlockV2
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthBlockV2
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthBlockV2
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if m.PreviousHeaderProof == nil {
+				m.PreviousHeaderProof = &PreviousHeaderProof{}
+			}
+			if err := m.PreviousHeaderProof.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipBlockV2(dAtA[iNdEx:])
@@ -1221,6 +1446,127 @@ func (m *MiniBlockHeaderReserved) Unmarshal(dAtA []byte) error {
 	}
 	return nil
 }
+func (m *PreviousHeaderProof) 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 ErrIntOverflowBlockV2
+			}
+			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: PreviousHeaderProof: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: PreviousHeaderProof: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field PubKeysBitmap", wireType)
+			}
+			var byteLen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowBlockV2
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				byteLen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if byteLen < 0 {
+				return ErrInvalidLengthBlockV2
+			}
+			postIndex := iNdEx + byteLen
+			if postIndex < 0 {
+				return ErrInvalidLengthBlockV2
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.PubKeysBitmap = append(m.PubKeysBitmap[:0], dAtA[iNdEx:postIndex]...)
+			if m.PubKeysBitmap == nil {
+				m.PubKeysBitmap = []byte{}
+			}
+			iNdEx = postIndex
+		case 2:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field AggregatedSignature", wireType)
+			}
+			var byteLen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowBlockV2
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				byteLen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if byteLen < 0 {
+				return ErrInvalidLengthBlockV2
+			}
+			postIndex := iNdEx + byteLen
+			if postIndex < 0 {
+				return ErrInvalidLengthBlockV2
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.AggregatedSignature = append(m.AggregatedSignature[:0], dAtA[iNdEx:postIndex]...)
+			if m.AggregatedSignature == nil {
+				m.AggregatedSignature = []byte{}
+			}
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipBlockV2(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if skippy < 0 {
+				return ErrInvalidLengthBlockV2
+			}
+			if (iNdEx + skippy) < 0 {
+				return ErrInvalidLengthBlockV2
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
 func skipBlockV2(dAtA []byte) (n int, err error) {
 	l := len(dAtA)
 	iNdEx := 0
diff --git a/data/block/blockV2.proto b/data/block/blockV2.proto
index 0e5a4b9b..0f49680f 100644
--- a/data/block/blockV2.proto
+++ b/data/block/blockV2.proto
@@ -11,13 +11,14 @@ import "block.proto";
 
 // HeaderV2 extends the Header structure with extra fields for version 2
 message HeaderV2 {
-  Header  Header = 1 [(gogoproto.jsontag) = "header,omitempty"];
-  bytes   ScheduledRootHash = 2 [(gogoproto.jsontag) = "scheduledRootHash,omitempty"];
-  bytes   ScheduledAccumulatedFees = 3 [(gogoproto.jsontag) = "scheduledAccumulatedFees,omitempty", (gogoproto.casttypewith) = "math/big.Int;github.com/multiversx/mx-chain-core-go/data.BigIntCaster"];
-  bytes   ScheduledDeveloperFees = 4 [(gogoproto.jsontag) = "scheduledDeveloperFees,omitempty", (gogoproto.casttypewith) = "math/big.Int;github.com/multiversx/mx-chain-core-go/data.BigIntCaster"];
-  uint64  ScheduledGasProvided = 5 [(gogoproto.jsontag) = "scheduledGasProvided"];
-  uint64  ScheduledGasPenalized = 6 [(gogoproto.jsontag) = "scheduledGasPenalized"];
-  uint64  ScheduledGasRefunded = 7 [(gogoproto.jsontag) = "scheduledGasRefunded"];
+  Header                Header = 1 [(gogoproto.jsontag) = "header,omitempty"];
+  bytes                 ScheduledRootHash = 2 [(gogoproto.jsontag) = "scheduledRootHash,omitempty"];
+  bytes                 ScheduledAccumulatedFees = 3 [(gogoproto.jsontag) = "scheduledAccumulatedFees,omitempty", (gogoproto.casttypewith) = "math/big.Int;github.com/multiversx/mx-chain-core-go/data.BigIntCaster"];
+  bytes                 ScheduledDeveloperFees = 4 [(gogoproto.jsontag) = "scheduledDeveloperFees,omitempty", (gogoproto.casttypewith) = "math/big.Int;github.com/multiversx/mx-chain-core-go/data.BigIntCaster"];
+  uint64                ScheduledGasProvided = 5 [(gogoproto.jsontag) = "scheduledGasProvided"];
+  uint64                ScheduledGasPenalized = 6 [(gogoproto.jsontag) = "scheduledGasPenalized"];
+  uint64                ScheduledGasRefunded = 7 [(gogoproto.jsontag) = "scheduledGasRefunded"];
+  PreviousHeaderProof   PreviousHeaderProof = 8 [(gogoproto.jsontag) = "previousHeaderProof"];
 }
 
 message MiniBlockReserved {
@@ -31,3 +32,9 @@ message MiniBlockHeaderReserved {
   int32 IndexOfFirstTxProcessed = 3 [(gogoproto.jsontag) = "indexOfFirstTxProcessed"];
   int32 IndexOfLastTxProcessed = 4 [(gogoproto.jsontag) = "indexOfLastTxProcessed"];
 }
+
+// PreviousHeaderProof defines a header proof
+message PreviousHeaderProof {
+  bytes PubKeysBitmap = 1 [(gogoproto.jsontag) = "pubKeysBitmap"];
+  bytes AggregatedSignature = 2 [(gogoproto.jsontag) = "aggregatedSignature"];
+}
diff --git a/data/block/blockV2Checks_test.go b/data/block/blockV2Checks_test.go
index b44e2d43..28abfaa8 100644
--- a/data/block/blockV2Checks_test.go
+++ b/data/block/blockV2Checks_test.go
@@ -12,6 +12,7 @@ import (
 var headerV2ExceptionFields = []string{
 	"Header",
 	"ScheduledRootHash",
+	"PreviousHeaderProof",
 }
 
 func TestBlockHeaderV2_Checks(t *testing.T) {
@@ -68,7 +69,8 @@ func TestBlockHeaderV2_Checks(t *testing.T) {
 		t.Parallel()
 
 		objectToTest := &HeaderV2{
-			Header: &Header{},
+			Header:              &Header{},
+			PreviousHeaderProof: &PreviousHeaderProof{},
 		}
 
 		fieldsForHeaderV1 := prepareFieldsList(objectToTest.Header, headerV1ExceptionFields...)
diff --git a/data/block/blockV2_test.go b/data/block/blockV2_test.go
index a0e28f58..12b26640 100644
--- a/data/block/blockV2_test.go
+++ b/data/block/blockV2_test.go
@@ -1217,3 +1217,20 @@ func TestHeaderV2_HasScheduledMiniBlocks(t *testing.T) {
 
 	require.False(t, shardBlock.HasScheduledMiniBlocks())
 }
+
+func TestHeaderV2_GetPreviousAggregatedSignatureAndBitmap(t *testing.T) {
+	t.Parallel()
+
+	shardBlock := &block.HeaderV2{}
+	sig, bitmap := shardBlock.GetPreviousAggregatedSignatureAndBitmap()
+	require.Nil(t, sig)
+	require.Nil(t, bitmap)
+
+	previousPubkeysBitmap := []byte("previous pub keys bitmap")
+	previousAggregatedSignature := []byte("previous aggregated signature")
+
+	shardBlock.SetPreviousAggregatedSignatureAndBitmap(previousAggregatedSignature, previousPubkeysBitmap)
+	sig, bitmap = shardBlock.GetPreviousAggregatedSignatureAndBitmap()
+	require.Equal(t, previousPubkeysBitmap, bitmap)
+	require.Equal(t, previousAggregatedSignature, sig)
+}
diff --git a/data/block/metaBlock.go b/data/block/metaBlock.go
index ebaf8da8..db254e07 100644
--- a/data/block/metaBlock.go
+++ b/data/block/metaBlock.go
@@ -566,3 +566,19 @@ func (m *MetaBlock) CheckFieldsForNil() error {
 
 	return nil
 }
+
+// GetPreviousAggregatedSignatureAndBitmap returns the previous aggregated signature and the previous pubkeys bitmap
+func (m *MetaBlock) GetPreviousAggregatedSignatureAndBitmap() ([]byte, []byte) {
+	if m.PreviousHeaderProof == nil {
+		return nil, nil
+	}
+	return m.PreviousHeaderProof.AggregatedSignature, m.PreviousHeaderProof.PubKeysBitmap
+}
+
+// SetPreviousAggregatedSignatureAndBitmap sets the previous aggregated signature and the previous pubkeys bitmap
+func (m *MetaBlock) SetPreviousAggregatedSignatureAndBitmap(aggregatedSignature []byte, pubKeysBitmap []byte) {
+	m.PreviousHeaderProof = &PreviousHeaderProof{
+		PubKeysBitmap:       pubKeysBitmap,
+		AggregatedSignature: aggregatedSignature,
+	}
+}
diff --git a/data/block/metaBlock.pb.go b/data/block/metaBlock.pb.go
index 9595a0ed..f1591283 100644
--- a/data/block/metaBlock.pb.go
+++ b/data/block/metaBlock.pb.go
@@ -70,8 +70,8 @@ func (PeerAction) EnumDescriptor() ([]byte, []int) {
 }
 
 // PeerData holds information about actions taken by a peer:
-//  - a peer can register with an amount to become a validator
-//  - a peer can choose to deregister and get back the deposited value
+//   - a peer can register with an amount to become a validator
+//   - a peer can choose to deregister and get back the deposited value
 type PeerData struct {
 	Address     []byte        `protobuf:"bytes,1,opt,name=Address,proto3" json:"address,omitempty"`
 	PublicKey   []byte        `protobuf:"bytes,2,opt,name=PublicKey,proto3" json:"publicKey,omitempty"`
@@ -545,31 +545,32 @@ func (m *EpochStart) GetEconomics() Economics {
 
 // MetaBlock holds the data that will be saved to the metachain each round
 type MetaBlock struct {
-	Nonce                  uint64            `protobuf:"varint,1,opt,name=Nonce,proto3" json:"nonce"`
-	Epoch                  uint32            `protobuf:"varint,2,opt,name=Epoch,proto3" json:"epoch"`
-	Round                  uint64            `protobuf:"varint,3,opt,name=Round,proto3" json:"round"`
-	TimeStamp              uint64            `protobuf:"varint,4,opt,name=TimeStamp,proto3" json:"timeStamp,omitempty"`
-	ShardInfo              []ShardData       `protobuf:"bytes,5,rep,name=ShardInfo,proto3" json:"shardInfo"`
-	PeerInfo               []PeerData        `protobuf:"bytes,6,rep,name=PeerInfo,proto3" json:"peerInfo"`
-	Signature              []byte            `protobuf:"bytes,7,opt,name=Signature,proto3" json:"signature,omitempty"`
-	LeaderSignature        []byte            `protobuf:"bytes,8,opt,name=LeaderSignature,proto3" json:"leaderSignature,omitempty"`
-	PubKeysBitmap          []byte            `protobuf:"bytes,9,opt,name=PubKeysBitmap,proto3" json:"pubKeysBitmap,omitempty"`
-	PrevHash               []byte            `protobuf:"bytes,10,opt,name=PrevHash,proto3" json:"prevHash,omitempty"`
-	PrevRandSeed           []byte            `protobuf:"bytes,11,opt,name=PrevRandSeed,proto3" json:"prevRandSeed,omitempty"`
-	RandSeed               []byte            `protobuf:"bytes,12,opt,name=RandSeed,proto3" json:"randSeed,omitempty"`
-	RootHash               []byte            `protobuf:"bytes,13,opt,name=RootHash,proto3" json:"rootHash,omitempty"`
-	ValidatorStatsRootHash []byte            `protobuf:"bytes,14,opt,name=ValidatorStatsRootHash,proto3" json:"validatorStatsRootHash,omitempty"`
-	MiniBlockHeaders       []MiniBlockHeader `protobuf:"bytes,16,rep,name=MiniBlockHeaders,proto3" json:"miniBlockHeaders"`
-	ReceiptsHash           []byte            `protobuf:"bytes,17,opt,name=ReceiptsHash,proto3" json:"receiptsHash,omitempty"`
-	EpochStart             EpochStart        `protobuf:"bytes,18,opt,name=EpochStart,proto3" json:"epochStart,omitempty"`
-	ChainID                []byte            `protobuf:"bytes,19,opt,name=ChainID,proto3" json:"chainID,omitempty"`
-	SoftwareVersion        []byte            `protobuf:"bytes,20,opt,name=SoftwareVersion,proto3" json:"softwareVersion,omitempty"`
-	AccumulatedFees        *math_big.Int     `protobuf:"bytes,21,opt,name=AccumulatedFees,proto3,casttypewith=math/big.Int;github.com/multiversx/mx-chain-core-go/data.BigIntCaster" json:"accumulatedFees,omitempty"`
-	AccumulatedFeesInEpoch *math_big.Int     `protobuf:"bytes,22,opt,name=AccumulatedFeesInEpoch,proto3,casttypewith=math/big.Int;github.com/multiversx/mx-chain-core-go/data.BigIntCaster" json:"accumulatedFeesInEpoch,omitempty"`
-	DeveloperFees          *math_big.Int     `protobuf:"bytes,23,opt,name=DeveloperFees,proto3,casttypewith=math/big.Int;github.com/multiversx/mx-chain-core-go/data.BigIntCaster" json:"developerFees,omitempty"`
-	DevFeesInEpoch         *math_big.Int     `protobuf:"bytes,24,opt,name=DevFeesInEpoch,proto3,casttypewith=math/big.Int;github.com/multiversx/mx-chain-core-go/data.BigIntCaster" json:"devFeesInEpoch,omitempty"`
-	TxCount                uint32            `protobuf:"varint,25,opt,name=TxCount,proto3" json:"txCount"`
-	Reserved               []byte            `protobuf:"bytes,26,opt,name=Reserved,proto3" json:"reserved,omitempty"`
+	Nonce                  uint64               `protobuf:"varint,1,opt,name=Nonce,proto3" json:"nonce"`
+	Epoch                  uint32               `protobuf:"varint,2,opt,name=Epoch,proto3" json:"epoch"`
+	Round                  uint64               `protobuf:"varint,3,opt,name=Round,proto3" json:"round"`
+	TimeStamp              uint64               `protobuf:"varint,4,opt,name=TimeStamp,proto3" json:"timeStamp,omitempty"`
+	ShardInfo              []ShardData          `protobuf:"bytes,5,rep,name=ShardInfo,proto3" json:"shardInfo"`
+	PeerInfo               []PeerData           `protobuf:"bytes,6,rep,name=PeerInfo,proto3" json:"peerInfo"`
+	Signature              []byte               `protobuf:"bytes,7,opt,name=Signature,proto3" json:"signature,omitempty"`
+	LeaderSignature        []byte               `protobuf:"bytes,8,opt,name=LeaderSignature,proto3" json:"leaderSignature,omitempty"`
+	PubKeysBitmap          []byte               `protobuf:"bytes,9,opt,name=PubKeysBitmap,proto3" json:"pubKeysBitmap,omitempty"`
+	PrevHash               []byte               `protobuf:"bytes,10,opt,name=PrevHash,proto3" json:"prevHash,omitempty"`
+	PrevRandSeed           []byte               `protobuf:"bytes,11,opt,name=PrevRandSeed,proto3" json:"prevRandSeed,omitempty"`
+	RandSeed               []byte               `protobuf:"bytes,12,opt,name=RandSeed,proto3" json:"randSeed,omitempty"`
+	RootHash               []byte               `protobuf:"bytes,13,opt,name=RootHash,proto3" json:"rootHash,omitempty"`
+	ValidatorStatsRootHash []byte               `protobuf:"bytes,14,opt,name=ValidatorStatsRootHash,proto3" json:"validatorStatsRootHash,omitempty"`
+	MiniBlockHeaders       []MiniBlockHeader    `protobuf:"bytes,16,rep,name=MiniBlockHeaders,proto3" json:"miniBlockHeaders"`
+	ReceiptsHash           []byte               `protobuf:"bytes,17,opt,name=ReceiptsHash,proto3" json:"receiptsHash,omitempty"`
+	EpochStart             EpochStart           `protobuf:"bytes,18,opt,name=EpochStart,proto3" json:"epochStart,omitempty"`
+	ChainID                []byte               `protobuf:"bytes,19,opt,name=ChainID,proto3" json:"chainID,omitempty"`
+	SoftwareVersion        []byte               `protobuf:"bytes,20,opt,name=SoftwareVersion,proto3" json:"softwareVersion,omitempty"`
+	AccumulatedFees        *math_big.Int        `protobuf:"bytes,21,opt,name=AccumulatedFees,proto3,casttypewith=math/big.Int;github.com/multiversx/mx-chain-core-go/data.BigIntCaster" json:"accumulatedFees,omitempty"`
+	AccumulatedFeesInEpoch *math_big.Int        `protobuf:"bytes,22,opt,name=AccumulatedFeesInEpoch,proto3,casttypewith=math/big.Int;github.com/multiversx/mx-chain-core-go/data.BigIntCaster" json:"accumulatedFeesInEpoch,omitempty"`
+	DeveloperFees          *math_big.Int        `protobuf:"bytes,23,opt,name=DeveloperFees,proto3,casttypewith=math/big.Int;github.com/multiversx/mx-chain-core-go/data.BigIntCaster" json:"developerFees,omitempty"`
+	DevFeesInEpoch         *math_big.Int        `protobuf:"bytes,24,opt,name=DevFeesInEpoch,proto3,casttypewith=math/big.Int;github.com/multiversx/mx-chain-core-go/data.BigIntCaster" json:"devFeesInEpoch,omitempty"`
+	TxCount                uint32               `protobuf:"varint,25,opt,name=TxCount,proto3" json:"txCount"`
+	Reserved               []byte               `protobuf:"bytes,26,opt,name=Reserved,proto3" json:"reserved,omitempty"`
+	PreviousHeaderProof    *PreviousHeaderProof `protobuf:"bytes,27,opt,name=PreviousHeaderProof,proto3" json:"previousHeaderProof"`
 }
 
 func (m *MetaBlock) Reset()      { *m = MetaBlock{} }
@@ -775,6 +776,13 @@ func (m *MetaBlock) GetReserved() []byte {
 	return nil
 }
 
+func (m *MetaBlock) GetPreviousHeaderProof() *PreviousHeaderProof {
+	if m != nil {
+		return m.PreviousHeaderProof
+	}
+	return nil
+}
+
 func init() {
 	proto.RegisterEnum("proto.PeerAction", PeerAction_name, PeerAction_value)
 	proto.RegisterType((*PeerData)(nil), "proto.PeerData")
@@ -788,111 +796,113 @@ func init() {
 func init() { proto.RegisterFile("metaBlock.proto", fileDescriptor_87b91ab531130b2b) }
 
 var fileDescriptor_87b91ab531130b2b = []byte{
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+	0x79, 0x2e, 0x06, 0xd4, 0xa0, 0x4d, 0x9f, 0xe3, 0x72, 0xae, 0xfe, 0xc7, 0x17, 0xaf, 0xaa, 0x99,
+	0x97, 0xaf, 0xaa, 0x99, 0x37, 0xaf, 0xaa, 0xd2, 0xbf, 0xfb, 0x55, 0xe9, 0xcb, 0x7e, 0x55, 0x7a,
+	0xde, 0xaf, 0x4a, 0x2f, 0xfa, 0x55, 0xe9, 0x65, 0xbf, 0x2a, 0x7d, 0xdf, 0xaf, 0x4a, 0x3f, 0xf6,
+	0xab, 0x99, 0x37, 0xfd, 0xaa, 0xf4, 0xec, 0x75, 0x35, 0xf3, 0xe2, 0x75, 0x35, 0xf3, 0xf2, 0x75,
+	0x35, 0xf3, 0xb7, 0x2c, 0xff, 0xdd, 0xb5, 0x3d, 0xc7, 0x13, 0xf6, 0x9b, 0x9f, 0x03, 0x00, 0x00,
+	0xff, 0xff, 0x82, 0xd1, 0xd4, 0xe6, 0xdb, 0x15, 0x00, 0x00,
 }
 
 func (x PeerAction) String() string {
@@ -1287,6 +1297,9 @@ func (this *MetaBlock) Equal(that interface{}) bool {
 	if !bytes.Equal(this.Reserved, that1.Reserved) {
 		return false
 	}
+	if !this.PreviousHeaderProof.Equal(that1.PreviousHeaderProof) {
+		return false
+	}
 	return true
 }
 func (this *PeerData) GoString() string {
@@ -1395,7 +1408,7 @@ func (this *MetaBlock) GoString() string {
 	if this == nil {
 		return "nil"
 	}
-	s := make([]string, 0, 29)
+	s := make([]string, 0, 30)
 	s = append(s, "&block.MetaBlock{")
 	s = append(s, "Nonce: "+fmt.Sprintf("%#v", this.Nonce)+",\n")
 	s = append(s, "Epoch: "+fmt.Sprintf("%#v", this.Epoch)+",\n")
@@ -1440,6 +1453,9 @@ func (this *MetaBlock) GoString() string {
 	s = append(s, "DevFeesInEpoch: "+fmt.Sprintf("%#v", this.DevFeesInEpoch)+",\n")
 	s = append(s, "TxCount: "+fmt.Sprintf("%#v", this.TxCount)+",\n")
 	s = append(s, "Reserved: "+fmt.Sprintf("%#v", this.Reserved)+",\n")
+	if this.PreviousHeaderProof != nil {
+		s = append(s, "PreviousHeaderProof: "+fmt.Sprintf("%#v", this.PreviousHeaderProof)+",\n")
+	}
 	s = append(s, "}")
 	return strings.Join(s, "")
 }
@@ -1893,6 +1909,20 @@ func (m *MetaBlock) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
+	if m.PreviousHeaderProof != nil {
+		{
+			size, err := m.PreviousHeaderProof.MarshalToSizedBuffer(dAtA[:i])
+			if err != nil {
+				return 0, err
+			}
+			i -= size
+			i = encodeVarintMetaBlock(dAtA, i, uint64(size))
+		}
+		i--
+		dAtA[i] = 0x1
+		i--
+		dAtA[i] = 0xda
+	}
 	if len(m.Reserved) > 0 {
 		i -= len(m.Reserved)
 		copy(dAtA[i:], m.Reserved)
@@ -2444,6 +2474,10 @@ func (m *MetaBlock) Size() (n int) {
 	if l > 0 {
 		n += 2 + l + sovMetaBlock(uint64(l))
 	}
+	if m.PreviousHeaderProof != nil {
+		l = m.PreviousHeaderProof.Size()
+		n += 2 + l + sovMetaBlock(uint64(l))
+	}
 	return n
 }
 
@@ -2597,6 +2631,7 @@ func (this *MetaBlock) String() string {
 		`DevFeesInEpoch:` + fmt.Sprintf("%v", this.DevFeesInEpoch) + `,`,
 		`TxCount:` + fmt.Sprintf("%v", this.TxCount) + `,`,
 		`Reserved:` + fmt.Sprintf("%v", this.Reserved) + `,`,
+		`PreviousHeaderProof:` + strings.Replace(fmt.Sprintf("%v", this.PreviousHeaderProof), "PreviousHeaderProof", "PreviousHeaderProof", 1) + `,`,
 		`}`,
 	}, "")
 	return s
@@ -4859,6 +4894,42 @@ func (m *MetaBlock) Unmarshal(dAtA []byte) error {
 				m.Reserved = []byte{}
 			}
 			iNdEx = postIndex
+		case 27:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field PreviousHeaderProof", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMetaBlock
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthMetaBlock
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthMetaBlock
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if m.PreviousHeaderProof == nil {
+				m.PreviousHeaderProof = &PreviousHeaderProof{}
+			}
+			if err := m.PreviousHeaderProof.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipMetaBlock(dAtA[iNdEx:])
diff --git a/data/block/metaBlock.proto b/data/block/metaBlock.proto
index db3a9bc3..20d8f9f0 100644
--- a/data/block/metaBlock.proto
+++ b/data/block/metaBlock.proto
@@ -9,6 +9,7 @@ option (gogoproto.stable_marshaler_all) = true;
 
 import "github.com/gogo/protobuf/gogoproto/gogo.proto";
 import "block.proto";
+import "blockV2.proto";
 
 
 // PeerAction type represents the possible events that a node can trigger for the metachain to notarize
@@ -86,29 +87,30 @@ message EpochStart {
 
 // MetaBlock holds the data that will be saved to the metachain each round
 message MetaBlock {
-	 uint64            Nonce                    = 1 [(gogoproto.jsontag) = "nonce"];
-	 uint32            Epoch                    = 2 [(gogoproto.jsontag) = "epoch"];
-	 uint64            Round                    = 3 [(gogoproto.jsontag) = "round"];
-	 uint64            TimeStamp                = 4 [(gogoproto.jsontag) = "timeStamp,omitempty"];
+	 uint64               Nonce                    = 1 [(gogoproto.jsontag) = "nonce"];
+	 uint32               Epoch                    = 2 [(gogoproto.jsontag) = "epoch"];
+	 uint64               Round                    = 3 [(gogoproto.jsontag) = "round"];
+	 uint64               TimeStamp                = 4 [(gogoproto.jsontag) = "timeStamp,omitempty"];
 	 repeated ShardData       ShardInfo         = 5 [(gogoproto.jsontag) = "shardInfo", (gogoproto.nullable) = false];
 	 repeated PeerData        PeerInfo          = 6 [(gogoproto.jsontag) = "peerInfo", (gogoproto.nullable) = false];
-	 bytes             Signature                = 7 [(gogoproto.jsontag) = "signature,omitempty"];
-	 bytes             LeaderSignature          = 8 [(gogoproto.jsontag) = "leaderSignature,omitempty"];
-	 bytes             PubKeysBitmap            = 9 [(gogoproto.jsontag) = "pubKeysBitmap,omitempty"];
-	 bytes             PrevHash                 = 10 [(gogoproto.jsontag) = "prevHash,omitempty"];
-	 bytes             PrevRandSeed             = 11 [(gogoproto.jsontag) = "prevRandSeed,omitempty"];
-	 bytes             RandSeed                 = 12 [(gogoproto.jsontag) = "randSeed,omitempty"];
-	 bytes             RootHash                 = 13 [(gogoproto.jsontag) = "rootHash,omitempty"];
-	 bytes             ValidatorStatsRootHash   = 14 [(gogoproto.jsontag) = "validatorStatsRootHash,omitempty"];
+	 bytes                Signature                = 7 [(gogoproto.jsontag) = "signature,omitempty"];
+	 bytes                LeaderSignature          = 8 [(gogoproto.jsontag) = "leaderSignature,omitempty"];
+	 bytes                PubKeysBitmap            = 9 [(gogoproto.jsontag) = "pubKeysBitmap,omitempty"];
+	 bytes                PrevHash                 = 10 [(gogoproto.jsontag) = "prevHash,omitempty"];
+	 bytes                PrevRandSeed             = 11 [(gogoproto.jsontag) = "prevRandSeed,omitempty"];
+	 bytes                RandSeed                 = 12 [(gogoproto.jsontag) = "randSeed,omitempty"];
+	 bytes                RootHash                 = 13 [(gogoproto.jsontag) = "rootHash,omitempty"];
+	 bytes                ValidatorStatsRootHash   = 14 [(gogoproto.jsontag) = "validatorStatsRootHash,omitempty"];
 	 repeated MiniBlockHeader MiniBlockHeaders  = 16 [(gogoproto.jsontag) = "miniBlockHeaders", (gogoproto.nullable) = false];
-	 bytes             ReceiptsHash             = 17 [(gogoproto.jsontag) = "receiptsHash,omitempty"];
-	 EpochStart        EpochStart               = 18 [(gogoproto.jsontag) = "epochStart,omitempty", (gogoproto.nullable) = false];
-	 bytes             ChainID                  = 19 [(gogoproto.jsontag) = "chainID,omitempty"];
-	 bytes             SoftwareVersion          = 20 [(gogoproto.jsontag) = "softwareVersion,omitempty"];
-	 bytes             AccumulatedFees          = 21 [(gogoproto.jsontag) = "accumulatedFees,omitempty", (gogoproto.casttypewith) = "math/big.Int;github.com/multiversx/mx-chain-core-go/data.BigIntCaster"];
-	 bytes             AccumulatedFeesInEpoch   = 22 [(gogoproto.jsontag) = "accumulatedFeesInEpoch,omitempty", (gogoproto.casttypewith) = "math/big.Int;github.com/multiversx/mx-chain-core-go/data.BigIntCaster"];
-	 bytes             DeveloperFees            = 23 [(gogoproto.jsontag) = "developerFees,omitempty", (gogoproto.casttypewith) = "math/big.Int;github.com/multiversx/mx-chain-core-go/data.BigIntCaster"];
-	 bytes             DevFeesInEpoch           = 24 [(gogoproto.jsontag) = "devFeesInEpoch,omitempty", (gogoproto.casttypewith) = "math/big.Int;github.com/multiversx/mx-chain-core-go/data.BigIntCaster"];
-	 uint32            TxCount                  = 25 [(gogoproto.jsontag) = "txCount"];
-	 bytes             Reserved                 = 26 [(gogoproto.jsontag) = "reserved,omitempty"];
+	 bytes                ReceiptsHash             = 17 [(gogoproto.jsontag) = "receiptsHash,omitempty"];
+	 EpochStart           EpochStart               = 18 [(gogoproto.jsontag) = "epochStart,omitempty", (gogoproto.nullable) = false];
+	 bytes                ChainID                  = 19 [(gogoproto.jsontag) = "chainID,omitempty"];
+	 bytes                SoftwareVersion          = 20 [(gogoproto.jsontag) = "softwareVersion,omitempty"];
+	 bytes                AccumulatedFees          = 21 [(gogoproto.jsontag) = "accumulatedFees,omitempty", (gogoproto.casttypewith) = "math/big.Int;github.com/multiversx/mx-chain-core-go/data.BigIntCaster"];
+	 bytes                AccumulatedFeesInEpoch   = 22 [(gogoproto.jsontag) = "accumulatedFeesInEpoch,omitempty", (gogoproto.casttypewith) = "math/big.Int;github.com/multiversx/mx-chain-core-go/data.BigIntCaster"];
+	 bytes                DeveloperFees            = 23 [(gogoproto.jsontag) = "developerFees,omitempty", (gogoproto.casttypewith) = "math/big.Int;github.com/multiversx/mx-chain-core-go/data.BigIntCaster"];
+	 bytes                DevFeesInEpoch           = 24 [(gogoproto.jsontag) = "devFeesInEpoch,omitempty", (gogoproto.casttypewith) = "math/big.Int;github.com/multiversx/mx-chain-core-go/data.BigIntCaster"];
+	 uint32               TxCount                  = 25 [(gogoproto.jsontag) = "txCount"];
+	 bytes                Reserved                 = 26 [(gogoproto.jsontag) = "reserved,omitempty"];
+	PreviousHeaderProof   PreviousHeaderProof = 27 [(gogoproto.jsontag) = "previousHeaderProof"];
 }
diff --git a/data/block/metaBlockChecks_test.go b/data/block/metaBlockChecks_test.go
index befb3377..fded840d 100644
--- a/data/block/metaBlockChecks_test.go
+++ b/data/block/metaBlockChecks_test.go
@@ -18,6 +18,7 @@ var metablockExceptionFields = []string{
 	"PubKeysBitmap",
 	"ReceiptsHash",
 	"Reserved",
+	"PreviousHeaderProof",
 }
 
 func TestMetaBlockHeader_Checks(t *testing.T) {
diff --git a/data/block/metaBlock_test.go b/data/block/metaBlock_test.go
index 1eca1260..3c2c0b8d 100644
--- a/data/block/metaBlock_test.go
+++ b/data/block/metaBlock_test.go
@@ -402,3 +402,20 @@ func TestMetaBlock_HasScheduledMiniBlocks(t *testing.T) {
 
 	require.True(t, metaBlock.HasScheduledMiniBlocks())
 }
+
+func TestMetaBlock2_GetPreviousAggregatedSignatureAndBitmap(t *testing.T) {
+	t.Parallel()
+
+	metaBlock := &block.MetaBlock{}
+	sig, bitmap := metaBlock.GetPreviousAggregatedSignatureAndBitmap()
+	require.Nil(t, sig)
+	require.Nil(t, bitmap)
+
+	previousPubkeysBitmap := []byte("previous pub keys bitmap")
+	previousAggregatedSignature := []byte("previous aggregated signature")
+
+	metaBlock.SetPreviousAggregatedSignatureAndBitmap(previousAggregatedSignature, previousPubkeysBitmap)
+	sig, bitmap = metaBlock.GetPreviousAggregatedSignatureAndBitmap()
+	require.Equal(t, previousPubkeysBitmap, bitmap)
+	require.Equal(t, previousAggregatedSignature, sig)
+}
diff --git a/data/interface.go b/data/interface.go
index 80b039da..bd2a3027 100644
--- a/data/interface.go
+++ b/data/interface.go
@@ -83,6 +83,8 @@ type HeaderHandler interface {
 	IsStartOfEpochBlock() bool
 	ShallowClone() HeaderHandler
 	CheckFieldsForNil() error
+	GetPreviousAggregatedSignatureAndBitmap() ([]byte, []byte)
+	SetPreviousAggregatedSignatureAndBitmap(aggregatedSignature []byte, pubkeysBitmap []byte)
 	IsInterfaceNil() bool
 }
 
@@ -256,6 +258,8 @@ type ChainHandler interface {
 	GetCurrentBlockRootHash() []byte
 	SetFinalBlockInfo(nonce uint64, blockHash []byte, rootHash []byte)
 	GetFinalBlockInfo() (nonce uint64, blockHash []byte, rootHash []byte)
+	SetCurrentAggregatedSignatureAndBitmap(signature []byte, pubKeysBitmap []byte)
+	GetCurrentAggregatedSignatureAndBitmap() ([]byte, []byte)
 	IsInterfaceNil() bool
 }