diff --git a/ch11_blockchain.adoc b/ch11_blockchain.adoc
index fa0cb8a1..13c01c21 100644
--- a/ch11_blockchain.adoc
+++ b/ch11_blockchain.adoc
@@ -229,7 +229,7 @@ the blockchain.
 
 === The Genesis Block
 
-The first block((("blockchain", "genesis block", id="blockchain-genesis")))((("genesis block", id="genesis-block"))) in the blockchain is called the _genesis block_
+The first block((("blockchain", "genesis block", id="blockchain-genesis")))((("genesis block", id="genesis-block")))((("Bitcoin Core", "genesis block", id="bitcoin-core-genesis"))) in the blockchain is called the _genesis block_
 and was created in 2009. It is the common ancestor of all the blocks in
 the blockchain, meaning that if you start at any block and follow the
 chain backward in time, you will eventually arrive at the genesis block.
@@ -297,7 +297,7 @@ headline of the British newspaper _The Times_. It also serves as a
 tongue-in-cheek reminder of the importance of an independent monetary
 system, with Bitcoin's launch occurring at the same time as an
 unprecedented worldwide monetary crisis. The message was embedded in the
-first block by Satoshi Nakamoto, Bitcoin's ((("blockchain", "genesis block", startref="blockchain-genesis")))((("genesis block", startref="genesis-block")))creator.
+first block by Satoshi Nakamoto, Bitcoin's ((("Nakamoto, Satoshi")))((("blockchain", "genesis block", startref="blockchain-genesis")))((("genesis block", startref="genesis-block")))((("Bitcoin Core", "genesis block", startref="bitcoin-core-genesis")))creator.
 
 === Linking Blocks in the Blockchain