diff --git a/go.mod b/go.mod
index 493b9898..20aa78f6 100644
--- a/go.mod
+++ b/go.mod
@@ -5,23 +5,18 @@ go 1.21
 require (
 	github.com/Masterminds/semver/v3 v3.2.1
 	github.com/buger/jsonparser v1.1.1
-	github.com/go-playground/validator/v10 v10.15.5
 	github.com/kennygrant/sanitize v1.2.4
 	github.com/spf13/cobra v1.7.0
 	github.com/spf13/viper v1.17.0
 	github.com/stretchr/testify v1.8.4
-	github.com/web-of-things-open-source/go-jsonschema v0.0.0-20231122093147-d1a487982f5c
+	github.com/web-of-things-open-source/go-jsonschema v0.0.0-20231123170049-1c3cab186d29
 )
 
 require (
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/fsnotify/fsnotify v1.6.0 // indirect
-	github.com/gabriel-vasile/mimetype v1.4.2 // indirect
-	github.com/go-playground/locales v0.14.1 // indirect
-	github.com/go-playground/universal-translator v0.18.1 // indirect
 	github.com/hashicorp/hcl v1.0.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
-	github.com/leodido/go-urn v1.2.4 // indirect
 	github.com/magiconair/properties v1.8.7 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/pelletier/go-toml/v2 v2.1.0 // indirect
@@ -35,7 +30,6 @@ require (
 	github.com/subosito/gotenv v1.6.0 // indirect
 	go.uber.org/atomic v1.9.0 // indirect
 	go.uber.org/multierr v1.9.0 // indirect
-	golang.org/x/crypto v0.15.0 // indirect
 	golang.org/x/exp v0.0.0-20230905200255-921286631fa9 // indirect
 	golang.org/x/net v0.18.0 // indirect
 	golang.org/x/sys v0.14.0 // indirect
diff --git a/go.sum b/go.sum
index 085fb3ed..083fa779 100644
--- a/go.sum
+++ b/go.sum
@@ -65,19 +65,9 @@ github.com/frankban/quicktest v1.14.4 h1:g2rn0vABPOOXmZUj+vbmUp0lPoXEMuhTpIluN0X
 github.com/frankban/quicktest v1.14.4/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
 github.com/fsnotify/fsnotify v1.6.0 h1:n+5WquG0fcWoWp6xPWfHdbskMCQaFnG6PfBrh1Ky4HY=
 github.com/fsnotify/fsnotify v1.6.0/go.mod h1:sl3t1tCWJFWoRz9R8WJCbQihKKwmorjAbSClcnxKAGw=
-github.com/gabriel-vasile/mimetype v1.4.2 h1:w5qFW6JKBz9Y393Y4q372O9A7cUSequkh1Q7OhCmWKU=
-github.com/gabriel-vasile/mimetype v1.4.2/go.mod h1:zApsH/mKG4w07erKIaJPFiX0Tsq9BFQgN3qGY5GnNgA=
 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
-github.com/go-playground/assert/v2 v2.2.0 h1:JvknZsQTYeFEAhQwI4qEt9cyV5ONwRHC+lYKSsYSR8s=
-github.com/go-playground/assert/v2 v2.2.0/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
-github.com/go-playground/locales v0.14.1 h1:EWaQ/wswjilfKLTECiXz7Rh+3BjFhfDFKv/oXslEjJA=
-github.com/go-playground/locales v0.14.1/go.mod h1:hxrqLVvrK65+Rwrd5Fc6F2O76J/NuW9t0sjnWqG1slY=
-github.com/go-playground/universal-translator v0.18.1 h1:Bcnm0ZwsGyWbCzImXv+pAJnYK9S473LQFuzCbDbfSFY=
-github.com/go-playground/universal-translator v0.18.1/go.mod h1:xekY+UJKNuX9WP91TpwSH2VMlDf28Uj24BCp08ZFTUY=
-github.com/go-playground/validator/v10 v10.15.5 h1:LEBecTWb/1j5TNY1YYG2RcOUN3R7NLylN+x8TTueE24=
-github.com/go-playground/validator/v10 v10.15.5/go.mod h1:9iXMNT7sEkjXb0I+enO7QXmzG6QCsPWY4zveKFVRSyU=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/groupcache v0.0.0-20191227052852-215e87163ea7/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
@@ -155,8 +145,6 @@ github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
-github.com/leodido/go-urn v1.2.4 h1:XlAE/cm/ms7TE/VMVoduSpNBoyc2dOxHs5MZSwAN63Q=
-github.com/leodido/go-urn v1.2.4/go.mod h1:7ZrI8mTSeBSHl/UaRyKQW1qZeMgak41ANeCNaVckg+4=
 github.com/magiconair/properties v1.8.7 h1:IeQXZAiQcpL9mgcAe1Nu6cX9LLw6ExEHKjN0VQdvPDY=
 github.com/magiconair/properties v1.8.7/go.mod h1:Dhd985XPs7jluiymwWYZ0G4Z61jb3vdS329zhj2hYo0=
 github.com/mitchellh/mapstructure v1.5.0 h1:jeMsZIYE/09sWLaz43PL7Gy6RuMjD2eJVyuac5Z2hdY=
@@ -198,13 +186,12 @@ github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
-github.com/stretchr/testify v1.8.2/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
 github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
 github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 github.com/subosito/gotenv v1.6.0 h1:9NlTDc1FTs4qu0DDq7AEtTPNw6SVm7uBMsUCUjABIf8=
 github.com/subosito/gotenv v1.6.0/go.mod h1:Dk4QP5c2W3ibzajGcXpNraDfq2IrhjMIvMSWPKKo0FU=
-github.com/web-of-things-open-source/go-jsonschema v0.0.0-20231122093147-d1a487982f5c h1:iQpkPMPMSByM8PLnwbLHThjUYX9NEezJfksra6nB63U=
-github.com/web-of-things-open-source/go-jsonschema v0.0.0-20231122093147-d1a487982f5c/go.mod h1:qjqU56vW5YwhHIY7u48KloTM0UnzBQKsCxpTbXgvYjs=
+github.com/web-of-things-open-source/go-jsonschema v0.0.0-20231123170049-1c3cab186d29 h1:jIY9WgwunMAiNCzIDPLD6vkUKNqFYT7u70Ep26Xo4CA=
+github.com/web-of-things-open-source/go-jsonschema v0.0.0-20231123170049-1c3cab186d29/go.mod h1:qjqU56vW5YwhHIY7u48KloTM0UnzBQKsCxpTbXgvYjs=
 github.com/xeipuuv/gojsonpointer v0.0.0-20180127040702-4e3ac2762d5f h1:J9EGpcZtP0E/raorCMxlFGSTBrsSlaDGf3jU/qvAE2c=
 github.com/xeipuuv/gojsonpointer v0.0.0-20180127040702-4e3ac2762d5f/go.mod h1:N2zxlSyiKSe5eX1tZViRH5QA0qijqEDrYZiPEAiq3wU=
 github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415 h1:EzJWgHovont7NscjpAxXsDA8S8BMYve8Y5+7cuRE7R0=
@@ -234,7 +221,6 @@ golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPh
 golang.org/x/crypto v0.0.0-20210421170649-83a5a9bb288b/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.0.0-20220722155217-630584e8d5aa/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
-golang.org/x/crypto v0.15.0 h1:frVn1TEaCEaZcn3Tmd7Y2b5KKPaZ+I32Q2OA3kYp5TA=
 golang.org/x/crypto v0.15.0/go.mod h1:4ChreQoLWfG3xLDer1WdlH5NdlQ3+mwnQq1YTKY+72g=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
diff --git a/internal/commands/validate/tmc-mandatory.schema.json b/internal/commands/validate/tmc-mandatory.schema.json
new file mode 100644
index 00000000..1c47560b
--- /dev/null
+++ b/internal/commands/validate/tmc-mandatory.schema.json
@@ -0,0 +1,56 @@
+{
+  "description": "JSON Schema for validating Thing Models for importing into Thing Model Catalog",
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "$id": "tm-mandatory.schema.json",
+  "definitions": {
+    "context": {
+      "type": "array",
+      "contains": {
+        "type": "object",
+        "properties": {
+          "schema": {
+            "const": "https://schema.org/"
+          }
+        },
+        "required": [
+          "schema"
+        ]
+      }
+    },
+    "objWithSchemaName": {
+      "type": "object",
+      "properties": {
+        "schema:name": {
+          "type": "string",
+          "pattern": "\\w+"
+        }
+      },
+      "required": [
+        "schema:name"
+      ]
+    }
+  },
+  "type": "object",
+  "properties": {
+    "@context": {
+      "$ref": "#/definitions/context"
+    },
+    "schema:mpn": {
+      "type": "string",
+      "pattern": "\\w+"
+    },
+    "schema:author": {
+      "$ref": "#/definitions/objWithSchemaName"
+    },
+    "schema:manufacturer": {
+      "$ref": "#/definitions/objWithSchemaName"
+    }
+  },
+  "additionalProperties": true,
+  "required": [
+    "@context",
+    "schema:author",
+    "schema:manufacturer",
+    "schema:mpn"
+  ]
+}
\ No newline at end of file
diff --git a/internal/commands/validate/validate.go b/internal/commands/validate/validate.go
index 26d83de0..2f95f715 100644
--- a/internal/commands/validate/validate.go
+++ b/internal/commands/validate/validate.go
@@ -6,7 +6,6 @@ import (
 	"encoding/json"
 	"log/slog"
 
-	"github.com/go-playground/validator/v10"
 	"github.com/kennygrant/sanitize"
 	"github.com/web-of-things-open-source/go-jsonschema"
 	"github.com/web-of-things-open-source/tm-catalog-cli/internal/model"
@@ -18,12 +17,20 @@ var tmValidationSchema []byte
 //go:embed modbus.schema.json
 var modbusValidationSchema []byte
 
+//go:embed tmc-mandatory.schema.json
+var tmcMandatorySchema []byte
+
+var tmcMandatoryValidator *jsonschema.Schema
 var tmValidator *jsonschema.Schema
 var modbusValidator *jsonschema.Schema
-var structValidator *validator.Validate
 
 func init() {
 	var err error
+	tmcMandatoryValidator, err = jsonschema.New(tmcMandatorySchema)
+	if err != nil {
+		panic(err)
+	}
+
 	tmValidator, err = jsonschema.New(tmValidationSchema)
 	if err != nil {
 		panic(err)
@@ -37,7 +44,6 @@ func init() {
 		panic(err)
 	}
 
-	structValidator = validator.New(validator.WithRequiredStructEnabled())
 }
 
 func ValidateAsTM(raw []byte) error {
@@ -59,13 +65,13 @@ func shouldTryModbus(raw []byte) bool {
 	return bytes.Index(raw, []byte("\"modbus:")) != -1
 }
 
-func ParseRequiredMetadata(raw []byte) (*model.ThingModel, error) {
-	tm := &model.ThingModel{}
-	err := json.Unmarshal(raw, tm)
+func ValidateAsTmcImportable(raw []byte) (*model.ThingModel, error) {
+	_, err := tmcMandatoryValidator.Validate(raw)
 	if err != nil {
 		return nil, err
 	}
-	err = structValidator.Struct(tm)
+	tm := &model.ThingModel{}
+	err = json.Unmarshal(raw, tm)
 	if err != nil {
 		return nil, err
 	}
@@ -80,7 +86,7 @@ func ParseRequiredMetadata(raw []byte) (*model.ThingModel, error) {
 func ValidateThingModel(raw []byte) (*model.ThingModel, error) {
 	log := slog.Default()
 
-	tm, err := ParseRequiredMetadata(raw)
+	tm, err := ValidateAsTmcImportable(raw)
 	if err != nil {
 		return nil, err
 	}
diff --git a/internal/commands/validate/validate_test.go b/internal/commands/validate/validate_test.go
index 2f435c98..74e60dca 100644
--- a/internal/commands/validate/validate_test.go
+++ b/internal/commands/validate/validate_test.go
@@ -43,17 +43,50 @@ func TestValidateAsModbus(t *testing.T) {
 }
 
 func TestParseRequiredMetadata(t *testing.T) {
-	tmFile := `{  "schema:manufacturer": {
-    "name": "omnicorp GmbH & Co. KG"
+	tmFile := `{
+  "@context": [{
+    "schema":"https://schema.org/"
+  }],
+  "schema:manufacturer": {
+    "schema:name": "omnicorp GmbH & Co. KG"
   },
   "schema:mpn": "sense&all",
   "schema:author": {
-    "name": "omnicorp R&D/research"
+    "schema:name": "omnicorp R&D/research"
   }
 }`
-	tm, err := ParseRequiredMetadata([]byte(tmFile))
+	tm, err := ValidateAsTmcImportable([]byte(tmFile))
 	assert.NoError(t, err)
 	assert.Equal(t, "omnicorp-GmbH-Co-KG", tm.Manufacturer.Name)
 	assert.Equal(t, "omnicorp-R-D-research", tm.Author.Name)
 	assert.Equal(t, "sense-all", tm.Mpn)
+
+	tmFile = `{
+ "@context": [{
+   "schema":"https://schema.org/"
+ }],
+ "schema:manufacturer": {
+   "schema:name": "omnicorp GmbH & Co. KG"
+ },
+ "schema:mpn": "sense&all",
+ "schema:author": {
+   "schema:name": " .-"
+ }
+}`
+	tm, err = ValidateAsTmcImportable([]byte(tmFile))
+	assert.Error(t, err)
+	assert.ErrorContains(t, err, "$.schema:author.schema:name")
+
+	tmFile = `{
+  "@context": [{
+    "schema":"https://schema.org/"
+  }],
+  "schema:mpn": "sense&all",
+  "schema:author": {
+    "schema:name": "omnicorp"
+  }
+}`
+	_, err = ValidateAsTmcImportable([]byte(tmFile))
+	assert.Error(t, err)
+	assert.ErrorContains(t, err, "schema:manufacturer at \"$\"")
 }
diff --git a/internal/model/model.go b/internal/model/model.go
index 30c22a19..1ed75129 100644
--- a/internal/model/model.go
+++ b/internal/model/model.go
@@ -11,10 +11,10 @@ type ThingModel struct {
 }
 
 type SchemaAuthor struct {
-	Name string `json:"name" validate:"required"`
+	Name string `json:"schema:name" validate:"required"`
 }
 type SchemaManufacturer struct {
-	Name string `json:"name" validate:"required"`
+	Name string `json:"schema:name" validate:"required"`
 }
 
 type Version struct {
diff --git a/test/data/push/omnilamp-versioned.json b/test/data/push/omnilamp-versioned.json
index dcfd6c3e..e1e6ee1f 100644
--- a/test/data/push/omnilamp-versioned.json
+++ b/test/data/push/omnilamp-versioned.json
@@ -1,16 +1,18 @@
 {
   "@context": [
     "https://www.w3.org/2022/wot/td/v1.1",
-    "https://schema.org/docs/jsonldcontext.json"
+    {
+      "schema": "https://schema.org/"
+    }
   ],
   "@type": "tm:ThingModel",
   "title": "Lamp Thing Model",
   "schema:manufacturer": {
-    "name": "omnicorp"
+    "schema:name": "omnicorp"
   },
   "schema:mpn": "omnilamp",
   "schema:author": {
-    "name": "omnicorp TM department"
+    "schema:name": "omnicorp TM department"
   },
   "properties": {
     "status": {
diff --git a/test/data/push/omnilamp.json b/test/data/push/omnilamp.json
index 19955dcc..7bdb549e 100644
--- a/test/data/push/omnilamp.json
+++ b/test/data/push/omnilamp.json
@@ -1,16 +1,18 @@
 {
   "@context": [
     "https://www.w3.org/2022/wot/td/v1.1",
-    "https://schema.org/docs/jsonldcontext.json"
+    {
+      "schema": "https://schema.org/"
+    }
   ],
   "@type": "tm:ThingModel",
   "title": "Lamp Thing Model",
   "schema:manufacturer": {
-    "name": "omnicorp"
+    "schema:name": "omnicorp"
   },
   "schema:mpn": "omnilamp",
   "schema:author": {
-    "name": "omnicorp TM department"
+    "schema:name": "omnicorp TM department"
   },
   "properties": {
     "status": {
diff --git a/test/data/validate/modbus-senseall-broken.json b/test/data/validate/modbus-senseall-broken.json
index 1577f4cd..80c6d535 100644
--- a/test/data/validate/modbus-senseall-broken.json
+++ b/test/data/validate/modbus-senseall-broken.json
@@ -2,6 +2,7 @@
   "@context": [
     "https://www.w3.org/2019/wot/td/v1",
     {
+      "schema": "https://schema.org/",
       "modbus": "https://www.w3.org/2019/wot/modbus"
     }
   ],
@@ -16,10 +17,10 @@
   },
   "schema:mpn": "senseall",
   "schema:manufacturer": {
-    "name": "omnicorp"
+    "schema:name": "omnicorp"
   },
   "schema:author": {
-    "name": "omnicorp"
+    "schema:name": "omnicorp"
   },
   "security": "nosec_sc",
   "properties": {
diff --git a/test/data/validate/modbus-senseall.json b/test/data/validate/modbus-senseall.json
index c388cff0..3f4f7d1c 100644
--- a/test/data/validate/modbus-senseall.json
+++ b/test/data/validate/modbus-senseall.json
@@ -2,6 +2,7 @@
   "@context": [
     "https://www.w3.org/2019/wot/td/v1",
     {
+      "schema": "https://schema.org/",
       "modbus": "https://www.w3.org/2019/wot/modbus"
     }
   ],
@@ -16,10 +17,10 @@
   },
   "schema:mpn": "senseall",
   "schema:manufacturer": {
-    "name": "omnicorp"
+    "schema:name": "omnicorp"
   },
   "schema:author": {
-    "name": "omnicorp"
+    "schema:name": "omnicorp"
   },
   "security": "nosec_sc",
   "properties": {
diff --git a/test/data/validate/omnilamp-broken.json b/test/data/validate/omnilamp-broken.json
index ae81aafd..839eff93 100644
--- a/test/data/validate/omnilamp-broken.json
+++ b/test/data/validate/omnilamp-broken.json
@@ -1,16 +1,18 @@
 {
   "@context": [
     "https://www.w3.org/2022/wot/td/v1.1",
-    "https://schema.org/docs/jsonldcontext.json"
+    {
+      "schema": "https://schema.org/"
+    }
   ],
   "@type": "tm:ThingModel",
   "title": "Lamp Thing Model",
   "schema:manufacturer": {
-    "name": "omnicorp"
+    "schema:name": "omnicorp"
   },
   "schema:mpn": "omnilamp",
   "schema:author": {
-    "name": "omnicorp TM department"
+    "schema:name": "omnicorp TM department"
   },
   "properties": {
     "status": {
diff --git a/test/data/validate/omnilamp.json b/test/data/validate/omnilamp.json
index 19955dcc..7bdb549e 100644
--- a/test/data/validate/omnilamp.json
+++ b/test/data/validate/omnilamp.json
@@ -1,16 +1,18 @@
 {
   "@context": [
     "https://www.w3.org/2022/wot/td/v1.1",
-    "https://schema.org/docs/jsonldcontext.json"
+    {
+      "schema": "https://schema.org/"
+    }
   ],
   "@type": "tm:ThingModel",
   "title": "Lamp Thing Model",
   "schema:manufacturer": {
-    "name": "omnicorp"
+    "schema:name": "omnicorp"
   },
   "schema:mpn": "omnilamp",
   "schema:author": {
-    "name": "omnicorp TM department"
+    "schema:name": "omnicorp TM department"
   },
   "properties": {
     "status": {