diff --git a/data/23/events/ethprague/data.json b/data/23/events/ethprague/data.json
index 19fabc1..564dfd2 100644
--- a/data/23/events/ethprague/data.json
+++ b/data/23/events/ethprague/data.json
@@ -212,11 +212,10 @@
     },
     {
       "id": "dcbuilder-eth",
-      "name": "Dcbuilder.eth",
+      "name": "dcbuilder.eth",
       "twitter": "DCbuild3r",
       "caption": "Worldcoin",
       "photoUrl": "https://images.ctfassets.net/6j1me6tz5h39/5ckzIji6kfbucbd3qqoL2Z/06e8a00ef6ffb5e2cc09b70d38633185/r-mqtMjszyRcqDbIsDI0E.jpeg",
-      "country": "cz",
       "photo": "photos/speakers/dcbuilder-eth.jpeg"
     },
     {
@@ -457,7 +456,7 @@
     },
     {
       "id": "lightclient",
-      "name": "Lightclient",
+      "name": "lightclient",
       "twitter": "lightclients",
       "caption": "Go ethereum",
       "photoUrl": "https://images.ctfassets.net/6j1me6tz5h39/1ykEtn8cvon11ZjjE7Iihq/393f6974cae8018ba4f16532ee017238/675E3D3D-633C-41E3-A070-9686D28ACDC0_P3bLLOX.jpeg",
@@ -720,7 +719,7 @@
       "id": "stani-kulechov",
       "name": "Stani Kulechov",
       "twitter": "StaniKulechov",
-      "caption": "AAVE & LENS PROTOCOL",
+      "caption": "Aave Companies",
       "photoUrl": "https://images.ctfassets.net/6j1me6tz5h39/4ws5PA8vKt02JgVN3pK7Zh/bdbe2855fc12a3461cafa1d41a6ed2ad/stani1.png",
       "photo": "photos/speakers/stani-kulechov.png"
     },
diff --git a/data/23/events/reg3/data.json b/data/23/events/reg3/data.json
index 96c190a..f749887 100644
--- a/data/23/events/reg3/data.json
+++ b/data/23/events/reg3/data.json
@@ -89,6 +89,14 @@
       "country": "cz",
       "photo": "photos/speakers/jakub-tesar.jpg"
     },
+    {
+      "id": "jan-chudoba",
+      "name": "Jan Chudoba",
+      "caption": "Head of Legal at SatoshiLabs",
+      "linkedin": "janch/?originalSubdomain=cz",
+      "photoUrl": "https://uploads-ssl.webflow.com/6419d553c89ebe398c7c8116/647b34a0bc5a7c8c9dd3ef8a_IMG07277_1.jpg",
+      "photo": "photos/speakers/jan-chudoba.jpg"
+    },
     {
       "id": "lukas-kovanda",
       "name": "Lukáš Kovanda",
diff --git a/data/23/events/reg3/photos/speakers/jan-chudoba-150px.op.webp b/data/23/events/reg3/photos/speakers/jan-chudoba-150px.op.webp
new file mode 100644
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diff --git a/data/23/events/reg3/photos/speakers/jan-chudoba-300px.op.webp b/data/23/events/reg3/photos/speakers/jan-chudoba-300px.op.webp
new file mode 100644
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diff --git a/data/23/events/reg3/photos/speakers/jan-chudoba-500px.op.webp b/data/23/events/reg3/photos/speakers/jan-chudoba-500px.op.webp
new file mode 100644
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diff --git a/data/23/events/reg3/photos/speakers/jan-chudoba.jpg b/data/23/events/reg3/photos/speakers/jan-chudoba.jpg
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index 0000000..5d2f037
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diff --git a/data/23/events/reg3/photos/speakers/jan-chudoba.op.webp b/data/23/events/reg3/photos/speakers/jan-chudoba.op.webp
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