# Hierarchy

**Checkpoint**

↳  [Impl](_impl_.impl.md)

# Constructors

<a id="constructor"></a>

##  constructor

⊕ **new Checkpoint**(rootHash: *`Uint8Array`*): [Checkpoint](_checkpoint_.checkpoint.md)

*Defined in [Checkpoint.ts:7](https://github.com/polkadot-js/common/blob/830c98d/packages/trie-db/src/Checkpoint.ts#L7)*

**Parameters:**

| Name | Type |
| ------ | ------ |
| rootHash | `Uint8Array` |

**Returns:** [Checkpoint](_checkpoint_.checkpoint.md)

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