An account is a key pair (private and public key) associated with a mutable state stored on the NEM blockchain. In other words, you have a deposit box in the blockchain, which only you can modify with your key pair. As the name suggests, the private key has to be kept secret at all times. Anyone with access to the private key, ultimately has control over the account.

Think about NEM accounts as a container for assets in the blockchain. An account could represent a deposit of tokens, like most blockchains. However, it could also represent a single object that must be unique and updatable: a package to be shipped, a deed to a house or a document to be notarized.

Accounts have the following properties:

Private key

A private key is a key to an account. Anyone having the private key to an account can initiate any account related action.


The private key must be kept secret at all costs. Make sure your private key is backed up safely somewhere offline.

Public key

The public key can be used to verify signatures of the account. The public key is stored in the blockchain with the first issued transaction. An account which has not issued any transaction has its public key field empty.


Each account has a unique address. You will normally share the derived address instead, as it is shorter and gathers more information.


The amount of different mosaics the account owns.


The relation between the amount of harvesting mosaics the account owns and the total mosaic supply.

Multisig Account

Accounts become truly smart when configured with special rules – directly on the NEM blockchain – that define how they relate and control each other, as well as how their contents can be updated and transferred. One crucial type of rule is multisig control that allows ownership of account based assets to be shared in a variety of ways between multiple parties.


Accounts may configure a set of smart rules to block announcing or receiving transactions given a series of constraints.