diff --git a/public/content/community/research/index.md b/public/content/community/research/index.md
index 9fea58e0243..69bfb9ee5e8 100644
--- a/public/content/community/research/index.md
+++ b/public/content/community/research/index.md
@@ -41,7 +41,7 @@ As well as forward-looking research, some fundamental redesigns of the protocol,
 
 - [Introduction to proof-of-stake](/developers/docs/consensus-mechanisms/pos/)
 - [Casper-FFG paper](https://arxiv.org/abs/1710.09437)
-- [Casper-FFG explainer](https://arxiv.org/abs/1710.09437)
+- [Casper-FFG explainer](https://medium.com/unitychain/intro-to-casper-ffg-9ed944d98b2d)
 - [Gasper paper](https://arxiv.org/abs/2003.03052)
 
 #### Recent research {#recent-research}
diff --git a/public/content/translations/cs/community/research/index.md b/public/content/translations/cs/community/research/index.md
index 278c78d5316..2c403241b3c 100644
--- a/public/content/translations/cs/community/research/index.md
+++ b/public/content/translations/cs/community/research/index.md
@@ -41,7 +41,7 @@ Kromě výzkumu zaměřeného na budoucnost se zkoumají i některé zásadní z
 
 - [Úvod do důkazu podílem](/developers/docs/consensus-mechanisms/pos/)
 - [Práce na Casper-FFG](https://arxiv.org/abs/1710.09437)
-- [Vysvětlení Casper-FFG](https://arxiv.org/abs/1710.09437)
+- [Vysvětlení Casper-FFG](https://medium.com/unitychain/intro-to-casper-ffg-9ed944d98b2d)
 - [Práce na Casper](https://arxiv.org/abs/2003.03052)
 
 #### Nedávný výzkum {#recent-research}
diff --git a/public/content/translations/de/community/research/index.md b/public/content/translations/de/community/research/index.md
index c155682e7f8..15c5d1d949c 100644
--- a/public/content/translations/de/community/research/index.md
+++ b/public/content/translations/de/community/research/index.md
@@ -41,7 +41,7 @@ Genau wie zukunftsorientierte Forschung werden einige fundamentale Neugestaltung
 
 - [Einführung in Proof-of-Stake](/developers/docs/consensus-mechanisms/pos/)
 - [Casper-FFG-Artikel](https://arxiv.org/abs/1710.09437)
-- [Casper-FFG-Erklärung](https://arxiv.org/abs/1710.09437)
+- [Casper-FFG-Erklärung](https://medium.com/unitychain/intro-to-casper-ffg-9ed944d98b2d)
 - [Casper-Artikel](https://arxiv.org/abs/2003.03052)
 
 #### Aktuelle Forschung {#recent-research}
diff --git a/public/content/translations/el/community/research/index.md b/public/content/translations/el/community/research/index.md
index b9f9e0f783c..8f9a0b7b4df 100644
--- a/public/content/translations/el/community/research/index.md
+++ b/public/content/translations/el/community/research/index.md
@@ -41,7 +41,7 @@ lang: el
 
 - [Είσοδος στην απόδειξη συμμετοχής](/developers/docs/consensus-mechanisms/pos/)
 - [Έγγραφο Casper-FFG](https://arxiv.org/abs/1710.09437)
-- [Εξήγηση Casper-FFG](https://arxiv.org/abs/1710.09437)
+- [Εξήγηση Casper-FFG](https://medium.com/unitychain/intro-to-casper-ffg-9ed944d98b2d)
 - [Έγγραφο Gasper](https://arxiv.org/abs/2003.03052)
 
 #### Πρόσφατη έρευνα {#recent-research}
diff --git a/public/content/translations/es/community/research/index.md b/public/content/translations/es/community/research/index.md
index ce18287bdd7..f3d01d8ef1c 100644
--- a/public/content/translations/es/community/research/index.md
+++ b/public/content/translations/es/community/research/index.md
@@ -41,7 +41,7 @@ Además de la investigación de perspectivas futuras, se están investigando alg
 
 - [Introducción a prueba de participación](/developers/docs/consensus-mechanisms/pos/)
 - [Documento Casper-FFG](https://arxiv.org/abs/1710.09437)
-- [Explicación de Casper-FFG](https://arxiv.org/abs/1710.09437)
+- [Explicación de Casper-FFG](https://medium.com/unitychain/intro-to-casper-ffg-9ed944d98b2d)
 - [Documento de Gasper](https://arxiv.org/abs/2003.03052)
 
 #### Investigación reciente {#recent-research}
diff --git a/public/content/translations/fa/community/research/index.md b/public/content/translations/fa/community/research/index.md
index ffb0cafdd4c..9e2664a38f9 100644
--- a/public/content/translations/fa/community/research/index.md
+++ b/public/content/translations/fa/community/research/index.md
@@ -41,7 +41,7 @@ lang: fa
 
 - [Introduction to proof-of-stake](/developers/docs/consensus-mechanisms/pos/)
 - [Casper-FFG paper](https://arxiv.org/abs/1710.09437)
-- [توضیح‌دهنده Casper-FFG](https://arxiv.org/abs/1710.09437)
+- [توضیح‌دهنده Casper-FFG](https://medium.com/unitychain/intro-to-casper-ffg-9ed944d98b2d)
 - [Gasper paper](https://arxiv.org/abs/2003.03052)
 
 #### جدیدترین تحقیقات {#recent-research}
diff --git a/public/content/translations/fr/community/research/index.md b/public/content/translations/fr/community/research/index.md
index dc53d5eae2a..8a78dd45bba 100644
--- a/public/content/translations/fr/community/research/index.md
+++ b/public/content/translations/fr/community/research/index.md
@@ -39,9 +39,9 @@ Outre des recherches prospectives, certaines refontes fondamentales du protocole
 
 #### Lecture de fond {#background-reading}
 
-- Introduction à la preuve d'enjeu](/developers/docs/consensus-mechanisms/pos/)
+- [Introduction à la preuve d'enjeu](/developers/docs/consensus-mechanisms/pos/)
 - [Article Casper-FFG](https://arxiv.org/abs/1710.09437)
-- [Explication Casper-FFG](https://arxiv.org/abs/1710.09437)
+- [Explication Casper-FFG](https://medium.com/unitychain/intro-to-casper-ffg-9ed944d98b2d)
 - [Article Gasper](https://arxiv.org/abs/2003.03052)
 
 #### Recherche récente {#recent-research}
diff --git a/public/content/translations/hu/community/research/index.md b/public/content/translations/hu/community/research/index.md
index f5b68e42663..b9ff54623b0 100644
--- a/public/content/translations/hu/community/research/index.md
+++ b/public/content/translations/hu/community/research/index.md
@@ -41,7 +41,7 @@ Emellett a jövőbe előretekintő kutatások, a protokoll alapvető újratervez
 
 - [Bevezetés a proof-of-stake mechanizmusba](/developers/docs/consensus-mechanisms/pos/)
 - [Casper-FFG dokumentáció](https://arxiv.org/abs/1710.09437)
-- [Casper-FFG magyarázat](https://arxiv.org/abs/1710.09437)
+- [Casper-FFG magyarázat](https://medium.com/unitychain/intro-to-casper-ffg-9ed944d98b2d)
 - [Gasper dokumentáció](https://arxiv.org/abs/2003.03052)
 
 #### Jelenlegi kutatás {#recent-research}
diff --git a/public/content/translations/it/community/research/index.md b/public/content/translations/it/community/research/index.md
index bf52abdf11d..5b13c4d0b43 100644
--- a/public/content/translations/it/community/research/index.md
+++ b/public/content/translations/it/community/research/index.md
@@ -41,7 +41,7 @@ Oltre alla ricerca prospettica, si stanno studiando alcune riprogettazioni fonda
 
 - [Introduzione al proof-of-stake](/developers/docs/consensus-mechanisms/pos/)
 - [Documento Casper-FFG](https://arxiv.org/abs/1710.09437)
-- [Spiegazione di Casper-FFG](https://arxiv.org/abs/1710.09437)
+- [Spiegazione di Casper-FFG](https://medium.com/unitychain/intro-to-casper-ffg-9ed944d98b2d)
 - [Documento Gasper](https://arxiv.org/abs/2003.03052)
 
 #### Ricerca recente {#recent-research}
diff --git a/public/content/translations/ja/community/research/index.md b/public/content/translations/ja/community/research/index.md
index 4988c8f78ba..d29bb3ab4e6 100644
--- a/public/content/translations/ja/community/research/index.md
+++ b/public/content/translations/ja/community/research/index.md
@@ -41,7 +41,7 @@ lang: ja
 
 - [プルーフ・オブ・ステーク入門](/developers/docs/consensus-mechanisms/pos/)
 - [Casper-FFG ペーパー](https://arxiv.org/abs/1710.09437)
-- [Casper-FFG の解説](https://arxiv.org/abs/1710.09437)
+- [Casper-FFG の解説](https://medium.com/unitychain/intro-to-casper-ffg-9ed944d98b2d)
 - [Gasper ペーパー](https://arxiv.org/abs/2003.03052)
 
 #### 最近の研究 {#recent-research}
diff --git a/public/content/translations/pl/community/research/index.md b/public/content/translations/pl/community/research/index.md
index da0e819755b..4b8169b64f9 100644
--- a/public/content/translations/pl/community/research/index.md
+++ b/public/content/translations/pl/community/research/index.md
@@ -41,7 +41,7 @@ Oprócz badań wybiegających w przyszłość, badane są niektóre fundamentaln
 
 - [Wprowadzenie do proof-of-stake](/developers/docs/consensus-mechanisms/pos/)
 - [Dokument Casper-FPG](https://arxiv.org/abs/1710.09437)
-- [Objaśnienie Casper-FFG](https://arxiv.org/abs/1710.09437)
+- [Objaśnienie Casper-FFG](https://medium.com/unitychain/intro-to-casper-ffg-9ed944d98b2d)
 - [Dokument Gasper](https://arxiv.org/abs/2003.03052)
 
 #### Ostatnie badania {#recent-research}
diff --git a/public/content/translations/pt-br/community/research/index.md b/public/content/translations/pt-br/community/research/index.md
index 04a436a8941..89dbb9b52e8 100644
--- a/public/content/translations/pt-br/community/research/index.md
+++ b/public/content/translations/pt-br/community/research/index.md
@@ -41,7 +41,7 @@ Além da pesquisa voltada para o futuro, algumas reformulações fundamentais do
 
 - [Introdução à prova de participação](/developers/docs/consensus-mechanisms/pos/)
 - [Artigo sobre o Casper-FFG](https://arxiv.org/abs/1710.09437)
-- [Artigo sobre Casper-FFG](https://arxiv.org/abs/1710.09437)
+- [Artigo sobre Casper-FFG](https://medium.com/unitychain/intro-to-casper-ffg-9ed944d98b2d)
 - [Artigo sobre o Gasper](https://arxiv.org/abs/2003.03052)
 
 #### Pesquisa recente {#recent-research}
diff --git a/public/content/translations/ru/community/research/index.md b/public/content/translations/ru/community/research/index.md
index 99289f85bb8..4024e546d90 100644
--- a/public/content/translations/ru/community/research/index.md
+++ b/public/content/translations/ru/community/research/index.md
@@ -41,7 +41,7 @@ lang: ru
 
 - [Введение в доказательство доли владения](/developers/docs/consensus-mechanisms/pos/)
 - [Документ Casper-FFG](https://arxiv.org/abs/1710.09437)
-- [Поясняющая статья Casper-FFG](https://arxiv.org/abs/1710.09437)
+- [Поясняющая статья Casper-FFG](https://medium.com/unitychain/intro-to-casper-ffg-9ed944d98b2d)
 - [Документ Gasper](https://arxiv.org/abs/2003.03052)
 
 #### Недавние исследования {#recent-research}
diff --git a/public/content/translations/tr/community/research/index.md b/public/content/translations/tr/community/research/index.md
index 7d907def44b..71a0849f7d8 100644
--- a/public/content/translations/tr/community/research/index.md
+++ b/public/content/translations/tr/community/research/index.md
@@ -41,7 +41,7 @@ Mutabakat araştırması, [Ethereum'un hisse ispatı mekanizması](/developers/d
 
 - [Hisse ispatına giriş](/developers/docs/consensus-mechanisms/pos/)
 - [Casper-FFG makalesi](https://arxiv.org/abs/1710.09437)
-- [Casper-FFG açıklayıcısı](https://arxiv.org/abs/1710.09437)
+- [Casper-FFG açıklayıcısı](https://medium.com/unitychain/intro-to-casper-ffg-9ed944d98b2d)
 - [Gasper makalesi](https://arxiv.org/abs/2003.03052)
 
 #### Yakın geçmişteki araştırmalar {#recent-research}
diff --git a/public/content/translations/zh-tw/community/research/index.md b/public/content/translations/zh-tw/community/research/index.md
index 8f95e0f1745..8948bb6069e 100644
--- a/public/content/translations/zh-tw/community/research/index.md
+++ b/public/content/translations/zh-tw/community/research/index.md
@@ -41,7 +41,7 @@ lang: zh-tw
 
 - [權益證明簡介](/developers/docs/consensus-mechanisms/pos/)
 - [Casper-FFG paper](https://arxiv.org/abs/1710.09437)
-- [Casper-FFG 說明](https://arxiv.org/abs/1710.09437)
+- [Casper-FFG 說明](https://medium.com/unitychain/intro-to-casper-ffg-9ed944d98b2d)
 - [Gasper 論文](https://arxiv.org/abs/2003.03052)
 
 #### 近期研究 {#recent-research}
diff --git a/public/content/translations/zh/community/research/index.md b/public/content/translations/zh/community/research/index.md
index 75e38769125..d17956a0c34 100644
--- a/public/content/translations/zh/community/research/index.md
+++ b/public/content/translations/zh/community/research/index.md
@@ -41,7 +41,7 @@ lang: zh
 
 - [权益证明简介](/developers/docs/consensus-mechanisms/pos/)
 - [Casper-FFG 论文](https://arxiv.org/abs/1710.09437)
-- [Casper-FFG 的解释说明](https://arxiv.org/abs/1710.09437)
+- [Casper-FFG 的解释说明](https://medium.com/unitychain/intro-to-casper-ffg-9ed944d98b2d)
 - [Gasper 论文](https://arxiv.org/abs/2003.03052)
 
 #### 近期的研究 {#recent-research}