diff --git a/data/23/events/artiffine-meetup/index.toml b/data/23/events/artiffine-meetup/index.toml
index 82b0cea..998f93c 100644
--- a/data/23/events/artiffine-meetup/index.toml
+++ b/data/23/events/artiffine-meetup/index.toml
@@ -16,11 +16,14 @@ languages = ["czech", "slovak"]
 tags = ["NFT", "legal"]
 description = '''
 '''
-logo = "logo.jpg"
+logo = "logo.png"
 
 [links]
 #web = "https://www.artiffine.com/"
 #twitter = "https://twitter.com/artiffine"
 
 [[speakers]]
-id = "jan-zibner"
\ No newline at end of file
+id = "vojtech-rychnovsky"
+name = "Vojtěch Rycnovský"
+photo = "photos/speakers/vojtech-rychnovsky.jpg"
+country = "cz"
\ No newline at end of file
diff --git a/data/23/events/artiffine-meetup/logo-150px.op.webp b/data/23/events/artiffine-meetup/logo-150px.op.webp
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diff --git a/data/23/events/artiffine-meetup/logo-300px.op.webp b/data/23/events/artiffine-meetup/logo-300px.op.webp
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diff --git a/data/23/events/artiffine-meetup/logo-500px.op.webp b/data/23/events/artiffine-meetup/logo-500px.op.webp
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diff --git a/data/23/events/artiffine-meetup/logo.jpg b/data/23/events/artiffine-meetup/logo.jpg
deleted file mode 100644
index b6be552..0000000
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diff --git a/data/23/events/artiffine-meetup/logo.op.webp b/data/23/events/artiffine-meetup/logo.op.webp
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diff --git a/data/23/events/artiffine-meetup/logo.png b/data/23/events/artiffine-meetup/logo.png
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diff --git a/data/23/events/artiffine-meetup/photos/speakers/vojtech-rychnovsky-150px.op.webp b/data/23/events/artiffine-meetup/photos/speakers/vojtech-rychnovsky-150px.op.webp
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diff --git a/data/23/events/artiffine-meetup/photos/speakers/vojtech-rychnovsky-300px.op.webp b/data/23/events/artiffine-meetup/photos/speakers/vojtech-rychnovsky-300px.op.webp
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diff --git a/data/23/events/artiffine-meetup/photos/speakers/vojtech-rychnovsky-500px.op.webp b/data/23/events/artiffine-meetup/photos/speakers/vojtech-rychnovsky-500px.op.webp
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diff --git a/data/23/events/artiffine-meetup/photos/speakers/vojtech-rychnovsky.jpg b/data/23/events/artiffine-meetup/photos/speakers/vojtech-rychnovsky.jpg
new file mode 100644
index 0000000..8202f7f
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diff --git a/data/23/events/artiffine-meetup/photos/speakers/vojtech-rychnovsky.op.webp b/data/23/events/artiffine-meetup/photos/speakers/vojtech-rychnovsky.op.webp
new file mode 100644
index 0000000..ff1b6bb
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diff --git a/data/23/events/utxo/data.json b/data/23/events/utxo/data.json
index b371c80..5f9d4b6 100644
--- a/data/23/events/utxo/data.json
+++ b/data/23/events/utxo/data.json
@@ -694,6 +694,23 @@
       "photoUrl": "https://spec.utxo.cz/23/photos/speakers/jan-zibner-web.jpg",
       "photo": "photos/speakers/jan-zibner.jpg"
     },
+    {
+      "id": "vojtech-rychnovsky",
+      "name": "Vojtěch Rychnovský",
+      
+      "bio": "Artiffine CTO",
+      "orgs": "CTO & spoluzakladatel [Artiffine](https://www.artiffine.com/)\n",
+      "caption": "CTO & co-founder of [Artiffine](https://www.artiffine.com/)\n",
+      "tracks": [
+        "nft"
+      ],
+      "country": "cz",
+      "photos": [
+        "web:jpg"
+      ],
+      "photoUrl": "https://spec.utxo.cz/23/photos/speakers/jan-zibner-web.jpg",
+      "photo": "photos/speakers/jan-zibner.jpg"
+    },
     {
       "id": "jana-kubatova",
       "name": "Jana Kubátová",