diff --git a/Changelog.txt b/Changelog.txt
index 32d9003..2e5d878 100644
--- a/Changelog.txt
+++ b/Changelog.txt
@@ -1,3 +1,6 @@
+* 2018-02-22
+	- Added paper ``Proof-of-Censorship: Enabling centralized censorship-resistant content providers''
+
 * 2018-01-04
 	- Added paper ``Online Advertising under Internet Censorship''
 
diff --git a/header.tpl b/header.tpl
index 7551508..047dc4e 100644
--- a/header.tpl
+++ b/header.tpl
@@ -83,7 +83,7 @@
       (<a href="author_reverse.html">reverse</a>) <a href="author.html">author</a> <br />
       Feedback: <a href="mailto:phw@nymity.ch">phw@nymity.ch</a> (<a
       href="https://nymity.ch/openpgp_public_key.txt">OpenPGP</a>) <br />
-      Last updated: <a href="Changelog.txt">2018-01-04</a> <br />
+      Last updated: <a href="Changelog.txt">2018-02-22</a> <br />
       Onion site: <a href="http://3wcwjjnuvjyazeza.onion">3wcwjjnuvjyazeza.onion</a> <br />
       Code: <a href="https://github.com/NullHypothesis/censorbib">GitHub</a>
     </div>
diff --git a/references.bib b/references.bib
index b9d2357..fdbebd1 100644
--- a/references.bib
+++ b/references.bib
@@ -1,3 +1,12 @@
+@inproceedings{Martiny2018a,
+	author = {Ian Martiny and Ian Miers and Eric Wustrow},
+	title = {Proof-of-Censorship: Enabling centralized censorship-resistant content providers},
+	booktitle = {Financial Cryptography and Data Security},
+	publisher = {Springer},
+	year = {2018},
+	url = {https://fc18.ifca.ai/preproceedings/95.pdf},
+}
+
 @inproceedings{Javaid2017a,
 	author = {Hira Javaid and Hafiz Kamran Khalil and Zartash Afzal Uzmi and Ihsan Ayyub Qazi},
 	title = {Online Advertising under {Internet} Censorship},