diff --git a/CHANGELOG.md b/CHANGELOG.md
index b54c681..5b87f9b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 ### Added
 - h-card markup to profile pages (thanks to [caesar](https://codeberg.org/caesar) [PR#130](https://codeberg.org/keyoxide/keyoxide-web/pulls/130))
+- `ariadne-identity-proof` header to profile pages
 ### Fixed
 - Keybase profiles (thanks to [gonz0](https://codeberg.org/gonz0))
 
diff --git a/routes/profile.js b/routes/profile.js
index 67cd5d3..efc6393 100644
--- a/routes/profile.js
+++ b/routes/profile.js
@@ -41,30 +41,35 @@ router.get('/sig', (req, res) => {
 router.post('/sig', bodyParser, async (req, res) => {
     const data = await generateSignatureProfile(req.body.signature)
     const title = utils.generatePageTitle('profile', data)
+    res.set('ariadne-identity-proof', data.keyData.openpgp4fpr)
     res.render('profile', { title: title, data: data, isSignature: true, signature: req.body.signature })
 })
 
 router.get('/wkd/:id', async (req, res) => {
     const data = await generateWKDProfile(req.params.id)
     const title = utils.generatePageTitle('profile', data)
+    res.set('ariadne-identity-proof', data.keyData.openpgp4fpr) 
     res.render('profile', { title: title, data: data })
 })
 
 router.get('/hkp/:id', async (req, res) => {
     const data = await generateHKPProfile(req.params.id)
     const title = utils.generatePageTitle('profile', data)
+    res.set('ariadne-identity-proof', data.keyData.openpgp4fpr) 
     res.render('profile', { title: title, data: data })
 })
 
 router.get('/hkp/:server/:id', async (req, res) => {
     const data = await generateHKPProfile(req.params.id, req.params.server)
     const title = utils.generatePageTitle('profile', data)
+    res.set('ariadne-identity-proof', data.keyData.openpgp4fpr) 
     res.render('profile', { title: title, data: data })
 })
 
 router.get('/keybase/:username/:fingerprint', async (req, res) => {
     const data = await generateKeybaseProfile(req.params.username, req.params.fingerprint)
     const title = utils.generatePageTitle('profile', data)
+    res.set('ariadne-identity-proof', data.keyData.openpgp4fpr) 
     res.render('profile', { title: title, data: data })
 })
 
@@ -76,6 +81,7 @@ router.get('/:id', async (req, res) => {
         data = await generateHKPProfile(req.params.id)
     }
     const title = utils.generatePageTitle('profile', data)
+    res.set('ariadne-identity-proof', data.keyData.openpgp4fpr) 
     res.render('profile', { title: title, data: data })
 })