# BuilderRegistrationMessage

> **BuilderRegistrationMessage** = `object`

Defined in: [types.ts:273](https://github.com/ObolNetwork/obol-sdk/blob/5137bd5c4ded55a50234f19135ea3a5bfeab4d47/src/types.ts#L273)

Unsigned DV Builder Registration Message

## Properties

| Property        | Type     | Description                                  | Defined in                                                                                                              |
| --------------- | -------- | -------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------- |
| `fee_recipient` | `string` | The DV fee recipient.                        | [types.ts:275](https://github.com/ObolNetwork/obol-sdk/blob/5137bd5c4ded55a50234f19135ea3a5bfeab4d47/src/types.ts#L275) |
| `gas_limit`     | `number` | Default is 30000000.                         | [types.ts:278](https://github.com/ObolNetwork/obol-sdk/blob/5137bd5c4ded55a50234f19135ea3a5bfeab4d47/src/types.ts#L278) |
| `timestamp`     | `number` | Timestamp when generating cluster lock file. | [types.ts:281](https://github.com/ObolNetwork/obol-sdk/blob/5137bd5c4ded55a50234f19135ea3a5bfeab4d47/src/types.ts#L281) |
| `pubkey`        | `string` | The public key of the DV.                    | [types.ts:284](https://github.com/ObolNetwork/obol-sdk/blob/5137bd5c4ded55a50234f19135ea3a5bfeab4d47/src/types.ts#L284) |