curl -X PUT "https://api.dokstamp.com/certificates/a1b2c3d4-e5f6-7890-abcd-ef1234567890/revoke" \
  -H "Authorization: Bearer {TOKEN}" \
  -H "Accept: application/json" \
  -H "Content-Type: application/json" \
  -H "X-Tenant: {TENANT}" \
  -d '{
    "revocation_reason": "Issued in error — student did not complete all required modules."
  }'

await fetch(`https://api.dokstamp.com/certificates/${uuid}/revoke`, {
  method: 'PUT',
  headers: {
    'Authorization': `Bearer ${TOKEN}`,
    'Accept': 'application/json',
    'Content-Type': 'application/json',
    'X-Tenant': TENANT,
  },
  body: JSON.stringify({
    revocation_reason: 'Issued in error — student did not complete all required modules.',
  }),
});