# Bsn

- `v::bsn()`

Validates a Dutch citizen service number ([BSN](https://nl.wikipedia.org/wiki/Burgerservicenummer)).

```php
v::bsn()->validate('612890053'); // true
```

***
See also:

  * [Cnh](Cnh.md)
  * [Cnpj](Cnpj.md)
  * [Cpf](Cpf.md)