diff --git a/ch12_mining.adoc b/ch12_mining.adoc
index ef363bc8..79b270de 100644
--- a/ch12_mining.adoc
+++ b/ch12_mining.adoc
@@ -1093,7 +1093,7 @@ that forms the decentralized blockchain.
 
 === Validating a New Block
 
-The third ((("bitcoins", "mining", "validating blocks", id="bitcoin-mining-validate")))((("mining", "validating blocks", id="mining-validate")))((("blocks", "validating", id="block-validate")))((("validating", "blocks", id="validate-block")))((("decentralized consensus", "validating blocks", id="decentral-consensus-validate")))step in Bitcoin's
+The third ((("bitcoins", "mining", "validating blocks", id="bitcoin-mining-validate")))((("mining", "validating blocks", id="mining-validate")))((("blocks", "validating", id="block-validate")))((("validating", "blocks", id="validate-block")))((("decentralized consensus", "validating blocks", id="decentral-consensus-validate")))((("nodes", "validating blocks", id="nodes-validate")))step in Bitcoin's
 consensus mechanism is independent validation of each new block by every
 node on the network. As the newly solved block moves across the network,
 each node performs a series of tests to validate it.
@@ -1137,7 +1137,7 @@ The miners have to construct a block, based on the shared rules
 that all nodes follow, and mine it with a correct solution to the
 Proof-of-Work. To do so, they expend a lot of electricity in mining, and
 if they cheat, all the electricity and effort is wasted. This is why
-independent validation is a key component of ((("bitcoins", "mining", "validating blocks", startref="bitcoin-mining-validate")))((("mining", "validating blocks", startref="mining-validate")))((("blocks", "validating", startref="block-validate")))((("validating", "blocks", startref="validate-block")))((("decentralized consensus", "validating blocks", startref="decentral-consensus-validate")))decentralized consensus.
+independent validation is a key component of ((("bitcoins", "mining", "validating blocks", startref="bitcoin-mining-validate")))((("mining", "validating blocks", startref="mining-validate")))((("blocks", "validating", startref="block-validate")))((("validating", "blocks", startref="validate-block")))((("decentralized consensus", "validating blocks", startref="decentral-consensus-validate")))((("nodes", "validating blocks", startref="nodes-validate")))decentralized consensus.
 
 //FIXME:normalize terminology between "block-finding race", "mining
 //race", and "forks"