diff --git a/; b/;
new file mode 100644
index 0000000..2c06117
--- /dev/null
+++ b/;
@@ -0,0 +1,25 @@
+package xmlmodels
+
+import "encoding/xml"
+
+type Inhalte struct {
+	XMLName xml.Name `xml:"dataroot"`
+	Inhalte []Inhalt `xml:"Inhalte"`
+}
+
+type Inhalt struct {
+	ID            int    `xml:"ID"`
+	Titelangabe   string `xml:"TITEL"`
+	Urheberangabe string `xml:"AUTOR"`
+	Band          int    `xml:"BAND"`
+	Objektnummer  string `xml:"OBJEKTNUMMER"`
+	Incipit       string `xml:"INCIPIT"`
+	Paginierung   string `xml:"PAGINIERUNG"`
+	Typ           Typ    `xml:"TYP"`
+	Anmerkungen   string `xml:"ANMERKUNGEN"`
+	Seite         string `xml:"SEITE"`
+}
+
+type Typ struct {
+	Value []string `xml:"Value"`
+}
diff --git a/dbmodels/agent.go b/dbmodels/agent.go
index f380285..fa19deb 100644
--- a/dbmodels/agent.go
+++ b/dbmodels/agent.go
@@ -92,11 +92,11 @@ func (a *Agent) SetAnnotation(annotation string) {
 	a.Set(ANNOTATION_FIELD, annotation)
 }
 
-func (a *Agent) MusenalmID() string {
-	return a.GetString(MUSENALMID_FIELD)
+func (a *Agent) MusenalmID() int {
+	return a.GetInt(MUSENALMID_FIELD)
 }
 
-func (a *Agent) SetMusenalmID(id string) {
+func (a *Agent) SetMusenalmID(id int) {
 	a.Set(MUSENALMID_FIELD, id)
 }
 
diff --git a/dbmodels/content.go b/dbmodels/content.go
index 4ba02f1..3fe9d8a 100644
--- a/dbmodels/content.go
+++ b/dbmodels/content.go
@@ -173,11 +173,11 @@ func (c *Content) SetEntry(entry string) {
 	c.Set(ENTRIES_TABLE, entry)
 }
 
-func (c *Content) MusenalmID() string {
-	return c.GetString(MUSENALMID_FIELD)
+func (c *Content) MusenalmID() int {
+	return c.GetInt(MUSENALMID_FIELD)
 }
 
-func (c *Content) SetMusenalmID(musenalmID string) {
+func (c *Content) SetMusenalmID(musenalmID int) {
 	c.Set(MUSENALMID_FIELD, musenalmID)
 }
 
diff --git a/dbmodels/entry.go b/dbmodels/entry.go
index d0a799f..45e749b 100644
--- a/dbmodels/entry.go
+++ b/dbmodels/entry.go
@@ -200,11 +200,11 @@ func (e *Entry) SetDeprecated(deprecated Deprecated) {
 	e.Set(MUSENALM_DEPRECATED_FIELD, deprecated)
 }
 
-func (e *Entry) MusenalmID() string {
-	return e.GetString(MUSENALMID_FIELD)
+func (e *Entry) MusenalmID() int {
+	return e.GetInt(MUSENALMID_FIELD)
 }
 
-func (e *Entry) SetMusenalmID(musenalmID string) {
+func (e *Entry) SetMusenalmID(musenalmID int) {
 	e.Set(MUSENALMID_FIELD, musenalmID)
 }
 
diff --git a/dbmodels/fts5.go b/dbmodels/fts5.go
index e3cb6e3..704e8b2 100644
--- a/dbmodels/fts5.go
+++ b/dbmodels/fts5.go
@@ -220,7 +220,6 @@ func FTS5ValuesContent(content *Content, entry *Entry, agents []*Agent) []string
 		entrystring += "; [o.J.]"
 	}
 
-	strconv.Itoa(entry.Year())
 	return []string{
 		content.PreferredTitle(),
 		content.VariantTitle(),
@@ -237,7 +236,7 @@ func FTS5ValuesContent(content *Content, entry *Entry, agents []*Agent) []string
 		strconv.FormatFloat(content.Numbering(), 'f', 3, 64),
 		entrystring,
 		agentstring,
-		content.MusenalmID(),
+		strconv.Itoa(content.MusenalmID()),
 		datatypes.DeleteTags(content.Annotation()),
 		datatypes.DeleteTags(content.Comment()),
 	}
@@ -291,7 +290,7 @@ func FTS5ValuesEntry(entry *Entry, places []*Place, agents []*Agent, series []*S
 		placestring,
 		agentstring,
 		seriesstring,
-		entry.MusenalmID(),
+		strconv.Itoa(entry.MusenalmID()),
 		datatypes.DeleteTags(entry.Annotation()),
 		datatypes.DeleteTags(entry.Comment()),
 	}
diff --git a/dbmodels/functions.go b/dbmodels/functions.go
index 09ad1cf..70459a2 100644
--- a/dbmodels/functions.go
+++ b/dbmodels/functions.go
@@ -13,7 +13,7 @@ func SetCreatedUpdatedFields(fieldlist *core.FieldsList) {
 }
 
 func SetMusenalmIDField(fieldlist *core.FieldsList) {
-	fieldlist.Add(&core.TextField{Name: MUSENALMID_FIELD, Max: 64, Required: false})
+	fieldlist.Add(&core.NumberField{Name: MUSENALMID_FIELD, Required: true})
 }
 
 func SetEditorStateField(fieldlist *core.FieldsList) {
diff --git a/dbmodels/place.go b/dbmodels/place.go
index 79b42d8..9f0f9bb 100644
--- a/dbmodels/place.go
+++ b/dbmodels/place.go
@@ -58,11 +58,11 @@ func (p *Place) SetAnnotation(annotation string) {
 	p.Set(ANNOTATION_FIELD, annotation)
 }
 
-func (p *Place) MusenalmID() string {
-	return p.GetString(MUSENALMID_FIELD)
+func (p *Place) MusenalmID() int {
+	return p.GetInt(MUSENALMID_FIELD)
 }
 
-func (p *Place) SetMusenalmID(id string) {
+func (p *Place) SetMusenalmID(id int) {
 	p.Set(MUSENALMID_FIELD, id)
 }
 
diff --git a/dbmodels/series.go b/dbmodels/series.go
index 18fe0fa..de1c003 100644
--- a/dbmodels/series.go
+++ b/dbmodels/series.go
@@ -56,11 +56,11 @@ func (s *Series) SetAnnotation(annotation string) {
 	s.Set(ANNOTATION_FIELD, annotation)
 }
 
-func (s *Series) MusenalmID() string {
-	return s.GetString(MUSENALMID_FIELD)
+func (s *Series) MusenalmID() int {
+	return s.GetInt(MUSENALMID_FIELD)
 }
 
-func (s *Series) SetMusenalmID(id string) {
+func (s *Series) SetMusenalmID(id int) {
 	s.Set(MUSENALMID_FIELD, id)
 }
 
diff --git a/migrations/1739007272_insert_data.go b/migrations/1739007272_insert_data.go
index f387061..a9aa017 100644
--- a/migrations/1739007272_insert_data.go
+++ b/migrations/1739007272_insert_data.go
@@ -21,15 +21,15 @@ func init() {
 
 		adb.Reihen = xmlmodels.SanitizeReihen(adb.Reihen, adb.Relationen_Bände_Reihen)
 
-		var agentsmap map[string]*dbmodels.Agent
+		var agentsmap map[int]*dbmodels.Agent
 		var placesmap map[string]*dbmodels.Place
 		var placesmapid map[string]*dbmodels.Place
-		var seriesmap map[string]*dbmodels.Series
-		var entriesmap map[string]*dbmodels.Entry
+		var seriesmap map[int]*dbmodels.Series
+		var entriesmap map[int]*dbmodels.Entry
 		var entriesmapid map[string]*dbmodels.Entry
 		var seriesmapid map[string]*dbmodels.Series
 		var agentsmapid map[string]*dbmodels.Agent
-		var contentsmap map[string]*dbmodels.Content
+		var contentsmap map[int]*dbmodels.Content
 		var r_entries_series map[string][]*dbmodels.REntriesSeries
 		var r_entries_agents map[string][]*dbmodels.REntriesAgents
 		var r_contents_agents map[string][]*dbmodels.RContentsAgents
@@ -50,7 +50,7 @@ func init() {
 			} else {
 				panic(err)
 			}
-			agentsmap = datatypes.MakeMap(agents, func(record *dbmodels.Agent) string { return record.MusenalmID() })
+			agentsmap = datatypes.MakeMap(agents, func(record *dbmodels.Agent) int { return record.MusenalmID() })
 			agentsmapid = datatypes.MakeMap(agents, func(record *dbmodels.Agent) string { return record.Id })
 			wg.Done()
 		}()
@@ -79,7 +79,7 @@ func init() {
 					app.Logger().Error("Error saving record", "error", err, "record", record)
 				}
 			}
-			seriesmap = datatypes.MakeMap(series, func(record *dbmodels.Series) string { return record.MusenalmID() })
+			seriesmap = datatypes.MakeMap(series, func(record *dbmodels.Series) int { return record.MusenalmID() })
 			seriesmapid = datatypes.MakeMap(series, func(record *dbmodels.Series) string { return record.Id })
 			wg.Done()
 		}()
@@ -96,7 +96,7 @@ func init() {
 			}
 		}
 
-		entriesmap = datatypes.MakeMap(entries, func(record *dbmodels.Entry) string { return record.MusenalmID() })
+		entriesmap = datatypes.MakeMap(entries, func(record *dbmodels.Entry) int { return record.MusenalmID() })
 		entriesmapid = datatypes.MakeMap(entries, func(record *dbmodels.Entry) string { return record.Id })
 
 		wg.Add(2)
@@ -125,7 +125,7 @@ func init() {
 					app.Logger().Error("Error saving record", "error", err, "record", record)
 				}
 			}
-			contentsmap = datatypes.MakeMap(contents, func(record *dbmodels.Content) string { return record.MusenalmID() })
+			contentsmap = datatypes.MakeMap(contents, func(record *dbmodels.Content) int { return record.MusenalmID() })
 			wg.Done()
 		}()
 
diff --git a/migrations/seed/contents.go b/migrations/seed/contents.go
index e564ce3..c1d48e3 100644
--- a/migrations/seed/contents.go
+++ b/migrations/seed/contents.go
@@ -3,6 +3,7 @@ package seed
 import (
 	"fmt"
 	"log"
+	"log/slog"
 	"os"
 	"path/filepath"
 	"strconv"
@@ -19,7 +20,7 @@ const NO_TITLE = "[No Title]"
 func RecordsFromInhalte(
 	app core.App,
 	inhalte xmlmodels.Inhalte,
-	entries map[string]*dbmodels.Entry,
+	entries map[int]*dbmodels.Entry,
 ) ([]*dbmodels.Content, error) {
 	collection, err := app.FindCollectionByNameOrId(dbmodels.CONTENTS_TABLE)
 	records := make([]*dbmodels.Content, 0, len(inhalte.Inhalte))
@@ -127,9 +128,9 @@ func commatizeArray(array []string) string {
 	return array[0]
 }
 
-func getImages(path string) map[string][]string {
+func getImages(path string) map[int][]string {
 	/// FIXED: there is a bug somewhere, where files ending with numbers after a comma (",001") etc dont get added
-	ret := make(map[string][]string)
+	ret := make(map[int][]string)
 	if _, err := os.Stat(path); os.IsNotExist(err) {
 		return ret
 	}
@@ -142,10 +143,15 @@ func getImages(path string) map[string][]string {
 			if len(basesplit) >= 3 {
 				commaseperatorsplit := strings.Split(basesplit[2], ",")
 				id := commaseperatorsplit[0]
-				if _, ok := ret[id]; !ok {
-					ret[id] = make([]string, 0)
+				no, err := strconv.Atoi(id)
+				if err != nil {
+					slog.Error("Error parsing id", "error", err, "id", id)
+					return nil
 				}
-				ret[id] = append(ret[id], path)
+				if _, ok := ret[no]; !ok {
+					ret[no] = make([]string, 0)
+				}
+				ret[no] = append(ret[no], path)
 			}
 		}
 		return nil
diff --git a/migrations/seed/entries.go b/migrations/seed/entries.go
index f6deff7..6457448 100644
--- a/migrations/seed/entries.go
+++ b/migrations/seed/entries.go
@@ -15,6 +15,7 @@ import (
 func RecordsFromBände(
 	app core.App,
 	adb xmlmodels.AccessDB,
+	// INFO: this is a string map, bc it's not by ID but by place name
 	places map[string]*dbmodels.Place,
 ) ([]*dbmodels.Entry, error) {
 	collection, err := app.FindCollectionByNameOrId(dbmodels.ENTRIES_TABLE)
@@ -31,12 +32,12 @@ func RecordsFromBände(
 	}
 
 	// INFO: lets make some maps to speed this up
-	omap := datatypes.MakeMap(adb.Orte.Orte, func(o xmlmodels.Ort) string { return o.ID })
+	omap := datatypes.MakeMap(adb.Orte.Orte, func(o xmlmodels.Ort) int { return o.ID })
 	relmap := datatypes.MakeMultiMap(
 		adb.Relationen_Bände_Reihen.Relationen,
-		func(r xmlmodels.Relation_Band_Reihe) string { return r.Band },
+		func(r xmlmodels.Relation_Band_Reihe) int { return r.Band },
 	)
-	rmap := datatypes.MakeMap(adb.Reihen.Reihen, func(r xmlmodels.Reihe) string { return r.ID })
+	rmap := datatypes.MakeMap(adb.Reihen.Reihen, func(r xmlmodels.Reihe) int { return r.ID })
 
 	for i := 0; i < len(adb.Bände.Bände); i++ {
 		band := adb.Bände.Bände[i]
@@ -86,8 +87,8 @@ func RecordsFromBände(
 func handlePreferredTitleEntry(
 	record *dbmodels.Entry,
 	band xmlmodels.Band,
-	rmap map[string]xmlmodels.Reihe,
-	rrelmap map[string][]xmlmodels.Relation_Band_Reihe,
+	rmap map[int]xmlmodels.Reihe,
+	rrelmap map[int][]xmlmodels.Relation_Band_Reihe,
 ) {
 	rels := rrelmap[band.ID]
 	if len(rels) == 0 {
@@ -120,7 +121,7 @@ func handlePreferredTitleEntry(
 func handleOrte(
 	record *dbmodels.Entry,
 	band xmlmodels.Band,
-	orte map[string]xmlmodels.Ort,
+	orte map[int]xmlmodels.Ort,
 	app core.App,
 	ocollection *core.Collection,
 	places map[string]*dbmodels.Place,
diff --git a/migrations/seed/items.go b/migrations/seed/items.go
index e3f9600..4adbdb5 100644
--- a/migrations/seed/items.go
+++ b/migrations/seed/items.go
@@ -16,7 +16,7 @@ func ItemsFromBändeAndBIBLIO(
 	app core.App,
 	entries xmlmodels.Bände,
 	biblio map[int]xmlmodels.BIBLIOEintrag,
-	entriesmap map[string]*dbmodels.Entry,
+	entriesmap map[int]*dbmodels.Entry,
 ) ([]*dbmodels.Item, error) {
 	collection, err := app.FindCollectionByNameOrId(dbmodels.ITEMS_TABLE)
 	records := make([]*dbmodels.Item, 0, len(entries.Bände))
diff --git a/migrations/seed/r_contents_agents.go b/migrations/seed/r_contents_agents.go
index 35f7e2c..235229d 100644
--- a/migrations/seed/r_contents_agents.go
+++ b/migrations/seed/r_contents_agents.go
@@ -12,8 +12,8 @@ import (
 func RecordsFromRelationInhalteAkteure(
 	app core.App,
 	relations xmlmodels.Relationen_Inhalte_Akteure,
-	contents map[string]*dbmodels.Content,
-	agents map[string]*dbmodels.Agent,
+	contents map[int]*dbmodels.Content,
+	agents map[int]*dbmodels.Agent,
 ) ([]*dbmodels.RContentsAgents, error) {
 	records := make([]*dbmodels.RContentsAgents, 0, len(relations.Relationen))
 	collection, err := app.FindCollectionByNameOrId(dbmodels.RelationTableName(dbmodels.CONTENTS_TABLE, dbmodels.AGENTS_TABLE))
diff --git a/migrations/seed/r_entries_agents.go b/migrations/seed/r_entries_agents.go
index b7e24be..226fdc4 100644
--- a/migrations/seed/r_entries_agents.go
+++ b/migrations/seed/r_entries_agents.go
@@ -11,8 +11,8 @@ import (
 func RecordsFromRelationBändeAkteure(
 	app core.App,
 	relations xmlmodels.Relationen_Bände_Akteure,
-	entries map[string]*dbmodels.Entry,
-	agents map[string]*dbmodels.Agent,
+	entries map[int]*dbmodels.Entry,
+	agents map[int]*dbmodels.Agent,
 ) ([]*dbmodels.REntriesAgents, error) {
 	records := make([]*dbmodels.REntriesAgents, 0, len(relations.Relationen))
 	collection, err := app.FindCollectionByNameOrId(dbmodels.RelationTableName(dbmodels.ENTRIES_TABLE, dbmodels.AGENTS_TABLE))
diff --git a/migrations/seed/r_entries_series.go b/migrations/seed/r_entries_series.go
index 77cac6b..dab962c 100644
--- a/migrations/seed/r_entries_series.go
+++ b/migrations/seed/r_entries_series.go
@@ -11,8 +11,8 @@ import (
 func RecordsFromRelationBändeReihen(
 	app core.App,
 	relations xmlmodels.Relationen_Bände_Reihen,
-	series map[string]*dbmodels.Series,
-	entries map[string]*dbmodels.Entry,
+	series map[int]*dbmodels.Series,
+	entries map[int]*dbmodels.Entry,
 ) ([]*dbmodels.REntriesSeries, error) {
 	records := make([]*dbmodels.REntriesSeries, 0, len(relations.Relationen))
 	collection, err := app.FindCollectionByNameOrId(dbmodels.RelationTableName(dbmodels.ENTRIES_TABLE, dbmodels.SERIES_TABLE))
diff --git a/xmlmodels/akteure.go b/xmlmodels/akteure.go
index 5fe8812..805d36e 100644
--- a/xmlmodels/akteure.go
+++ b/xmlmodels/akteure.go
@@ -8,7 +8,7 @@ type Akteure struct {
 }
 
 type Akteur struct {
-	ID           string `xml:"ID"`
+	ID           int    `xml:"ID"`
 	Name         string `xml:"NAME"`
 	Körperschaft bool   `xml:"ORGANISATION"`
 	Beruf        string `xml:"BERUF"`
diff --git a/xmlmodels/baende.go b/xmlmodels/baende.go
index 64fc3b8..affcc71 100644
--- a/xmlmodels/baende.go
+++ b/xmlmodels/baende.go
@@ -8,7 +8,7 @@ type Bände struct {
 }
 
 type Band struct {
-	ID                        string       `xml:"ID"`
+	ID                        int          `xml:"ID"`
 	BiblioID                  int          `xml:"BIBLIO-ID"`
 	Titelangabe               string       `xml:"TITEL"`
 	Ortsangabe                string       `xml:"ORT-ALT"`
@@ -26,7 +26,7 @@ type Band struct {
 }
 
 type Ortverweis struct {
-	Value string `xml:"Value"`
+	Value int `xml:"Value"`
 }
 
 type Status struct {
diff --git a/xmlmodels/inhalte.go b/xmlmodels/inhalte.go
index 61b5515..2c06117 100644
--- a/xmlmodels/inhalte.go
+++ b/xmlmodels/inhalte.go
@@ -8,10 +8,10 @@ type Inhalte struct {
 }
 
 type Inhalt struct {
-	ID            string `xml:"ID"`
+	ID            int    `xml:"ID"`
 	Titelangabe   string `xml:"TITEL"`
 	Urheberangabe string `xml:"AUTOR"`
-	Band          string `xml:"BAND"`
+	Band          int    `xml:"BAND"`
 	Objektnummer  string `xml:"OBJEKTNUMMER"`
 	Incipit       string `xml:"INCIPIT"`
 	Paginierung   string `xml:"PAGINIERUNG"`
diff --git a/xmlmodels/orte.go b/xmlmodels/orte.go
index f91261c..0a35706 100644
--- a/xmlmodels/orte.go
+++ b/xmlmodels/orte.go
@@ -8,7 +8,7 @@ type Orte struct {
 }
 
 type Ort struct {
-	ID          string `xml:"ID"`
+	ID          int    `xml:"ID"`
 	Name        string `xml:"NAME"`
 	Fiktiv      bool   `xml:"FIKTIV"`
 	Anmerkungen string `xml:"Anmerkungen"`
diff --git a/xmlmodels/reihen.go b/xmlmodels/reihen.go
index 94468f2..637581f 100644
--- a/xmlmodels/reihen.go
+++ b/xmlmodels/reihen.go
@@ -8,7 +8,7 @@ type Reihentitel struct {
 }
 
 type Reihe struct {
-	ID          string `xml:"ID"`
+	ID          int    `xml:"ID"`
 	Titel       string `xml:"NAME"`
 	Sortiername string `xml:"SORTIERNAME"`
 	Nachweis    string `xml:"NACHWEIS"`
@@ -16,7 +16,7 @@ type Reihe struct {
 }
 
 func SanitizeReihen(reihentitel Reihentitel, relationen Relationen_Bände_Reihen) Reihentitel {
-	m := make(map[string]bool)
+	m := make(map[int]bool)
 	o := Reihentitel{
 		Reihen: []Reihe{},
 	}
diff --git a/xmlmodels/relationen.go b/xmlmodels/relationen.go
index 200b6ce..468dd83 100644
--- a/xmlmodels/relationen.go
+++ b/xmlmodels/relationen.go
@@ -8,10 +8,10 @@ type Relationen_Bände_Reihen struct {
 }
 
 type Relation_Band_Reihe struct {
-	ID       string `xml:"ID"`
-	Band     string `xml:"BAND"`
+	ID       int    `xml:"ID"`
+	Band     int    `xml:"BAND"`
 	Relation string `xml:"BEZIEHUNG"`
-	Reihe    string `xml:"REIHE"`
+	Reihe    int    `xml:"REIHE"`
 }
 
 type Relationen_Inhalte_Akteure struct {
@@ -20,10 +20,10 @@ type Relationen_Inhalte_Akteure struct {
 }
 
 type Relation_Inhalt_Akteur struct {
-	ID       string `xml:"ID"`
-	Inhalt   string `xml:"INHALT"`
+	ID       int    `xml:"ID"`
+	Inhalt   int    `xml:"INHALT"`
 	Relation string `xml:"BEZIEHUNG"`
-	Akteur   string `xml:"AKTEUR"`
+	Akteur   int    `xml:"AKTEUR"`
 }
 
 type Relationen_Bände_Akteure struct {
@@ -32,8 +32,8 @@ type Relationen_Bände_Akteure struct {
 }
 
 type Relation_Band_Akteur struct {
-	ID       string `xml:"ID"`
-	Band     string `xml:"BAND"`
+	ID       int    `xml:"ID"`
+	Band     int    `xml:"BAND"`
 	Relation string `xml:"BEZIEHUNG"`
-	Akteur   string `xml:"AKTEUR"`
+	Akteur   int    `xml:"AKTEUR"`
 }