This is an old revision of the document!
[Nick][✓ nick, 2020-05-16]Review to make sure I got the words right ..it was bit garbled before
ledger records the immutable data where nothing is ever deleted or updated. Instead, changes to immutable data are performed using transactions that specify the identifier for the original data, its original value, its new value, and the transaction itself that, when applied to the original data, provides the new value. The Ledger Data is data that is managed as immutable.