diff --git a/uzi_vc_issuer/ura_issuer.go b/uzi_vc_issuer/ura_issuer.go
index 5054a2a..6d7b522 100644
--- a/uzi_vc_issuer/ura_issuer.go
+++ b/uzi_vc_issuer/ura_issuer.go
@@ -110,7 +110,14 @@ func BuildUraVerifiableCredential(chain []*x509.Certificate, signingKey *rsa.Pri
 	if err != nil {
 		return nil, err
 	}
-	template, err := uraCredential(did, otherNameValue, serialNumber, subjectDID)
+	uzi, _, _, err := x509_cert.ParseUraFromOtherNameValue(otherNameValue)
+	if err != nil {
+		return nil, err
+	}
+	if uzi != serialNumber {
+		return nil, errors.New("serial number does not match UZI number")
+	}
+	template, err := uraCredential(did, otherNameValue, subjectDID)
 	if err != nil {
 		return nil, err
 	}
@@ -255,16 +262,9 @@ func convertHeaders(headers map[string]interface{}) (jws.Headers, error) {
 
 // uraCredential generates a VerifiableCredential for a given URA and UZI number, including the subject's DID.
 // It sets a 1-year expiration period from the current issuance date.
-func uraCredential(issuer string, otherNameValue string, serialNumber string, subjectDID string) (*vc.VerifiableCredential, error) {
+func uraCredential(issuer string, otherNameValue string, subjectDID string) (*vc.VerifiableCredential, error) {
 	exp := time.Now().Add(time.Hour * 24 * 365 * 100)
 	iat := time.Now()
-	uzi, _, _, err := x509_cert.ParseUraFromOtherNameValue(otherNameValue)
-	if err != nil {
-		return nil, err
-	}
-	if uzi != serialNumber {
-		return nil, errors.New("serial number does not match UZI number")
-	}
 	return &vc.VerifiableCredential{
 		Issuer:         ssi.MustParseURI(issuer),
 		Context:        []ssi.URI{ssi.MustParseURI("https://www.w3.org/2018/credentials/v1")},
@@ -274,9 +274,8 @@ func uraCredential(issuer string, otherNameValue string, serialNumber string, su
 		ExpirationDate: &exp,
 		CredentialSubject: []interface{}{
 			map[string]interface{}{
-				"id":           subjectDID,
-				"serialNumber": serialNumber,
-				"otherName":    otherNameValue,
+				"id":        subjectDID,
+				"otherName": otherNameValue,
 			},
 		},
 	}, nil