diff --git a/pkg/proto/v0/accounts.pb.go b/pkg/proto/v0/accounts.pb.go
index 43cd346817..287bea7013 100644
--- a/pkg/proto/v0/accounts.pb.go
+++ b/pkg/proto/v0/accounts.pb.go
@@ -5,9 +5,10 @@ package proto
 
 import (
 	fmt "fmt"
+	math "math"
+
 	proto "github.com/golang/protobuf/proto"
 	_ "github.com/golang/protobuf/ptypes/empty"
-	math "math"
 )
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -117,6 +118,7 @@ func (m *Payload) GetAccount() *Account {
 
 type Account struct {
 	StandardClaims       *StandardClaims `protobuf:"bytes,1,opt,name=standard_claims,json=standardClaims,proto3" json:"standard_claims,omitempty"`
+	Identities           []*IdHistory    `protobuf:"bytes,2,rep,name=identities,proto3" json:"identities,omitempty"`
 	XXX_NoUnkeyedLiteral struct{}        `json:"-"`
 	XXX_unrecognized     []byte          `json:"-"`
 	XXX_sizecache        int32           `json:"-"`
@@ -154,6 +156,13 @@ func (m *Account) GetStandardClaims() *StandardClaims {
 	return nil
 }
 
+func (m *Account) GetIdentities() []*IdHistory {
+	if m != nil {
+		return m.Identities
+	}
+	return nil
+}
+
 // OIDC standard claims https://openid.net/specs/openid-connect-core-1_0.html#StandardClaims
 type StandardClaims struct {
 	Sub                  string   `protobuf:"bytes,1,opt,name=sub,proto3" json:"sub,omitempty"`
@@ -425,6 +434,53 @@ func (m *Address) GetCountry() string {
 	return ""
 }
 
+type IdHistory struct {
+	Sub                  string   `protobuf:"bytes,1,opt,name=sub,proto3" json:"sub,omitempty"`
+	Iss                  string   `protobuf:"bytes,2,opt,name=iss,proto3" json:"iss,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *IdHistory) Reset()         { *m = IdHistory{} }
+func (m *IdHistory) String() string { return proto.CompactTextString(m) }
+func (*IdHistory) ProtoMessage()    {}
+func (*IdHistory) Descriptor() ([]byte, []int) {
+	return fileDescriptor_e3c84319968a576b, []int{5}
+}
+
+func (m *IdHistory) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_IdHistory.Unmarshal(m, b)
+}
+func (m *IdHistory) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_IdHistory.Marshal(b, m, deterministic)
+}
+func (m *IdHistory) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_IdHistory.Merge(m, src)
+}
+func (m *IdHistory) XXX_Size() int {
+	return xxx_messageInfo_IdHistory.Size(m)
+}
+func (m *IdHistory) XXX_DiscardUnknown() {
+	xxx_messageInfo_IdHistory.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_IdHistory proto.InternalMessageInfo
+
+func (m *IdHistory) GetSub() string {
+	if m != nil {
+		return m.Sub
+	}
+	return ""
+}
+
+func (m *IdHistory) GetIss() string {
+	if m != nil {
+		return m.Iss
+	}
+	return ""
+}
+
 type Phoenix struct {
 	Theme                string   `protobuf:"bytes,1,opt,name=theme,proto3" json:"theme,omitempty"`
 	XXX_NoUnkeyedLiteral struct{} `json:"-"`
@@ -436,7 +492,7 @@ func (m *Phoenix) Reset()         { *m = Phoenix{} }
 func (m *Phoenix) String() string { return proto.CompactTextString(m) }
 func (*Phoenix) ProtoMessage()    {}
 func (*Phoenix) Descriptor() ([]byte, []int) {
-	return fileDescriptor_e3c84319968a576b, []int{5}
+	return fileDescriptor_e3c84319968a576b, []int{6}
 }
 
 func (m *Phoenix) XXX_Unmarshal(b []byte) error {
@@ -475,7 +531,7 @@ func (m *Query) Reset()         { *m = Query{} }
 func (m *Query) String() string { return proto.CompactTextString(m) }
 func (*Query) ProtoMessage()    {}
 func (*Query) Descriptor() ([]byte, []int) {
-	return fileDescriptor_e3c84319968a576b, []int{6}
+	return fileDescriptor_e3c84319968a576b, []int{7}
 }
 
 func (m *Query) XXX_Unmarshal(b []byte) error {
@@ -514,7 +570,7 @@ func (m *Records) Reset()         { *m = Records{} }
 func (m *Records) String() string { return proto.CompactTextString(m) }
 func (*Records) ProtoMessage()    {}
 func (*Records) Descriptor() ([]byte, []int) {
-	return fileDescriptor_e3c84319968a576b, []int{7}
+	return fileDescriptor_e3c84319968a576b, []int{8}
 }
 
 func (m *Records) XXX_Unmarshal(b []byte) error {
@@ -548,6 +604,7 @@ func init() {
 	proto.RegisterType((*Account)(nil), "settings.Account")
 	proto.RegisterType((*StandardClaims)(nil), "settings.StandardClaims")
 	proto.RegisterType((*Address)(nil), "settings.Address")
+	proto.RegisterType((*IdHistory)(nil), "settings.IdHistory")
 	proto.RegisterType((*Phoenix)(nil), "settings.Phoenix")
 	proto.RegisterType((*Query)(nil), "settings.Query")
 	proto.RegisterType((*Records)(nil), "settings.Records")
@@ -556,49 +613,52 @@ func init() {
 func init() { proto.RegisterFile("pkg/proto/v0/accounts.proto", fileDescriptor_e3c84319968a576b) }
 
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+	0x23, 0x86, 0xcd, 0x61, 0xf0, 0x16, 0x2d, 0xbb, 0xd8, 0x0b, 0x54, 0xdf, 0x07, 0x9c, 0xdf, 0xc0,
+	0xc9, 0x4f, 0xd2, 0x58, 0xf6, 0x7c, 0xe1, 0x2f, 0xf4, 0xa2, 0xbb, 0xd0, 0x8b, 0xef, 0xdd, 0x85,
+	0x9e, 0x5e, 0xbd, 0x1f, 0x61, 0xbe, 0x8b, 0x7f, 0x1f, 0x7a, 0xd3, 0x29, 0xfd, 0xbc, 0xfe, 0x3f,
+	0x00, 0x00, 0xff, 0xff, 0x89, 0x43, 0x0c, 0x13, 0x04, 0x06, 0x00, 0x00,
 }
diff --git a/pkg/proto/v0/accounts.proto b/pkg/proto/v0/accounts.proto
index 390c8d0c58..d48059bcca 100644
--- a/pkg/proto/v0/accounts.proto
+++ b/pkg/proto/v0/accounts.proto
@@ -22,6 +22,7 @@ message Payload {
 
 message Account {
     StandardClaims standard_claims = 1;
+    repeated IdHistory identities = 2; // keep track of every identity of a given user
 }
 
 // OIDC standard claims https://openid.net/specs/openid-connect-core-1_0.html#StandardClaims
@@ -57,6 +58,11 @@ message Address {
     string country = 6;
 }
 
+message IdHistory {
+    string sub = 1;
+    string iss = 2;
+}
+
 message Phoenix {
     string theme = 1;
 }