ch07: add pruning definition

3 years ago · 925ee5d325
parent 07da92ac95
commit 925ee5d325
1 changed files with 1 additions and 1 deletions
--- a/ch07.asciidoc
+++ b/ch07.asciidoc
@ -1009,7 +1009,7 @@ Without transaction fees, the growth in bitcoin data would arguably increase dra

 The calculation of fees based on transaction size treats all the data in the transaction as equal in cost. But from the perspective of full nodes and miners, some parts of a transaction carry much higher costs. Every transaction added to the bitcoin network affects the consumption of four resources on nodes:

-Disk Space :: Every transaction is stored in the blockchain, adding to the total size of the blockchain. The blockchain is stored on disk, but the storage can be optimized by “pruning” older transactions.
+Disk Space :: Every transaction is stored in the blockchain, adding to the total size of the blockchain. The blockchain is stored on disk, but the storage can be optimized by “pruning” (deleting) older transactions.

 CPU :: Every transaction must be validated, which requires CPU time.