Novel tools and techniques are provided for implementing tracking or storing of equipment configuration data using immutable ledger functionality of blockchains. In various embodiments, in response to receiving a first request for first configuration data that is output by first equipment, a computing system might determine whether a communicatively coupled data repository contains the first configuration data. If so, the computing system might retrieve and send (to the requesting device) the first configuration data. If not, the computing system might send, to a blockchain system, a second request for identifying a blockchain containing a block containing the first configuration data. In response to such a blockchain being identified, the computing system might receive the identified blockchain; might abstract the block containing the first configuration data from the identified blockchain; might abstract the first configuration data from the block; and might send the first configuration data to the requesting device.