diff --git a/.data/haip.claims.example.json b/.data/haip.claims.example.json
index 2d3c12a..bb6f180 100644
--- a/.data/haip.claims.example.json
+++ b/.data/haip.claims.example.json
@@ -1,4 +1,6 @@
 {
-  "given_name": "John",
-  "last_name": "Doe"
+  "credentialSubject": {
+    "given_name": "John",
+    "family_name": "Doe"
+  }
 }
\ No newline at end of file
diff --git a/.data/studentid.claims.example.json b/.data/studentid.claims.example.json
index 9e26dfe..40d57a3 100644
--- a/.data/studentid.claims.example.json
+++ b/.data/studentid.claims.example.json
@@ -1 +1,7 @@
-{}
\ No newline at end of file
+{
+    "id": "1234567890",
+    "studentID": "1234567890",
+    "givenName": "John",
+    "familyName": "Doe",
+    "dateOfBirth": "1963-07-07"
+}
\ No newline at end of file
diff --git a/scripts/generate-proof.ts b/scripts/generate-proof.ts
new file mode 100644
index 0000000..349738d
--- /dev/null
+++ b/scripts/generate-proof.ts
@@ -0,0 +1,21 @@
+import { getJwtVcJsonProof, getSdJwtVcJsonProof } from '../src/utils/openid/vci.proof-jwt.js';
+
+async function main() {
+  const issuer = 'https://dvfmz2oh-dev.meeco.cloud';
+  const c_nonce = '98b27583-2609-49ed-b9bc-3cd9cdd29811';
+
+  const result = await getJwtVcJsonProof(issuer, c_nonce);
+  console.log(result);
+}
+
+async function main1() {
+  const issuer = 'https://dvfmz2oh-dev.meeco.cloud';
+  const c_nonce = '79493288-9221-4fc6-9c01-527995a3bb0d';
+
+  const result = await getSdJwtVcJsonProof(issuer, c_nonce);
+  console.log(result);
+}
+
+await main();
+
+await main1();
diff --git a/src/utils/openid/vci.proof-jwt.ts b/src/utils/openid/vci.proof-jwt.ts
index 2467065..7070cd0 100644
--- a/src/utils/openid/vci.proof-jwt.ts
+++ b/src/utils/openid/vci.proof-jwt.ts
@@ -1,11 +1,10 @@
 import { SignJWT, importJWK } from 'jose';
 import { readFile } from 'node:fs/promises';
-import { TokenSet } from 'openid-client';
 
 import { SIGNING_ALG } from '../../types/openid.types.js';
 import { createDidKey, signJWT } from '../signature.js';
 
-export async function getJwtVcJsonProof(issuer: string, token: TokenSet) {
+export async function getJwtVcJsonProof(issuer: string, c_nonce: unknown) {
   const didKey = createDidKey();
 
   const jwt = await signJWT({
@@ -16,7 +15,7 @@ export async function getJwtVcJsonProof(issuer: string, token: TokenSet) {
       aud: issuer,
       exp: Math.floor(Date.now() / 1000) + 60 * 2,
       iss: didKey.identifier,
-      nonce: token.c_nonce,
+      nonce: c_nonce,
     },
     secretKey: didKey.secretKey,
   });
@@ -24,23 +23,23 @@ export async function getJwtVcJsonProof(issuer: string, token: TokenSet) {
   return jwt;
 }
 
-export async function getSdJwtVcJsonProof(issuer: string, token: TokenSet) {
+export async function getSdJwtVcJsonProof(issuer: string, c_nonce: unknown) {
   const holder = await readFile('./config/holder.json').then((data) => JSON.parse(data.toString()));
-  
+
   const privateKey = await importJWK(holder.jwk);
 
   // eslint-disable-next-line @typescript-eslint/no-unused-vars
-  const { d: _d, ...publicKey } = holder.jwk; 
+  const { d: _d, ...publicKey } = holder.jwk;
 
   const jwt: string = await new SignJWT({
     aud: issuer,
     exp: Math.floor(Date.now() / 1000) + 60 * 2,
     iss: holder.uri,
-    nonce: token.c_nonce,
+    nonce: c_nonce,
   })
     .setProtectedHeader({ alg: SIGNING_ALG.ES256, jwk: publicKey, typ: 'openid4vci-proof+jwt' })
     .setIssuedAt()
     .sign(privateKey);
 
   return jwt;
-}
\ No newline at end of file
+}
diff --git a/src/utils/openid/vci.ts b/src/utils/openid/vci.ts
index 31c451d..2992f0a 100644
--- a/src/utils/openid/vci.ts
+++ b/src/utils/openid/vci.ts
@@ -130,6 +130,8 @@ export async function claimCredentialOffer(credentialOfferURL: string) {
       openidConfig,
     });
 
+    console.log('token:', token);
+
     ux.action.stop();
   } else {
     throw new Error('could not find a supported grant type');
@@ -180,7 +182,9 @@ export async function issueVC(issuer: string, endpoint: string, token: TokenSet,
    * Get VC
    */
 
-  const jwt = isVcSdJwt(metadata) ? await getSdJwtVcJsonProof(issuer, token) : await getJwtVcJsonProof(issuer, token);
+  const jwt = isVcSdJwt(metadata)
+    ? await getSdJwtVcJsonProof(issuer, token.c_nonce)
+    : await getJwtVcJsonProof(issuer, token.c_nonce);
 
   const vcPayload = {
     ...metadata,
@@ -190,6 +194,8 @@ export async function issueVC(issuer: string, endpoint: string, token: TokenSet,
     },
   };
 
+  console.log('vc payload', vcPayload);
+
   const result = await fetch(endpoint, {
     body: JSON.stringify(vcPayload),
     headers: {