Crypto challenges: Add Procaptcha

#21
relaycorp · Apr 17, 2024 · c6920af · c6920af
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commit c6920af
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/content/docs/tactics/crypto-challenges.md b/src/content/docs/tactics/crypto-challenges.md
@@ -16,7 +16,7 @@ complete a series of cryptographic operations to perform a task.
 including those that change IP addresses as they get blocked,
 with minimal or no impact on legitimate users in most cases.
 
-Turnkey PoW solutions include [ALTCHA](https://altcha.org) and [mCaptcha](https://mcaptcha.org)—both of which offer widgets for websites.
+Turnkey PoW solutions include [ALTCHA](https://altcha.org), [mCaptcha](https://mcaptcha.org), and [Procaptcha](https://prosopo.io/)—all of which offer widgets for websites.
 Some [humanity verification services](./humanity-verification.md) integrate PoW challenges as well.
 
 In advanced scenarios where more control over the PoW protocol is needed,