From 4ddfab34de362f8b599d36157c49e32fbc537146 Mon Sep 17 00:00:00 2001
From: Xavier Damman <xdamman@gmail.com>
Date: Wed, 19 Mar 2025 12:36:33 +0100
Subject: [PATCH] level 1 -> layer 1

---
 73.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/73.md b/73.md
index 2bc837e9..db3b14c6 100644
--- a/73.md
+++ b/73.md
@@ -33,7 +33,7 @@ There are certain established global content identifiers such as [Book ISBNs](ht
 
 ### Blockchain
 
-`<blockchain>` can be any level 1 chain (`bitcoin`, `ethereum`, `solana`, ...). If necessary (e.g. for ethereum), you can specify a `<chainId>`.
+`<blockchain>` can be any layer 1 chain (`bitcoin`, `ethereum`, `solana`, ...). If necessary (e.g. for ethereum), you can specify a `<chainId>`.
 
 #### Bitcoin