diff --git a/06_history_of_cryptocurrencies.md b/06_history_of_cryptocurrencies.md
index 8c75528..2ccdc72 100644
--- a/06_history_of_cryptocurrencies.md
+++ b/06_history_of_cryptocurrencies.md
@@ -19,3 +19,4 @@
 * Ethereum, Turing-complete smart contracts, Solidity, tokens
 * zk, ZCash
 * ring CT, Monero
+* Подпись Шнорра, Bitcoin
diff --git a/07_important_concepts.md b/07_important_concepts.md
index cc15f1c..861b865 100644
--- a/07_important_concepts.md
+++ b/07_important_concepts.md
@@ -17,6 +17,7 @@
 * Горячий кошель
 * Холодный кошель
 * Аппаратный кошель
+* Мультиподпись
 * Layer 2
 * Sidechains
 * Оракулы