# balance · FT4 Rell API · Chromia Docs (concept)

> Represents an account's holdings of a certain asset. entity balance {
 key asset: asset ;
 key account: account ;
 mutable amount: big_ integer;
} key asse

Source: https://docs.chromia.com/pages/ft4-rell/-f-t4-library/lib.ft4.core.assets/balance/

ENTITY

# balance

Represents an account's holdings of a certain asset.

```signature
entity balance {
 key asset: asset;
 key account: account;
 mutable amount: big_integer;
}
```

`key asset: asset;`
:   The asset this balance refers to

`key account: account;`
:   The account holding this balance

`mutable amount: big_integer;`
:   How much of this asset is held by the account.
    If this reaches `0L`, it is deleted.

[Source](https://gitlab.com/chromaway/ft4-lib/-/blob/development/rell/src/lib/ft4/core/assets/asset.rell#lines-87)

[View this page on docs.chromia.com](https://docs.chromia.com/pages/ft4-rell/-f-t4%20-library/lib.ft4.core.assets/balance/index.html)Generated API reference, mirrored from the live docs