# Response: XBLOCKTX

This message delivers the transactions specified in the previous [`GET_XBLOCKTX`](get_xblocktx) message to the remote peer. This message starts with the hash of the block being reconstructed, followed by a list of transactions requested.  

## Format  

| Field | Length | Format | Description |
|--|--|--|--|
| Block hash | 32 Bytes | Bytes | The hash of the block being reconstructed. |
| Transactions | variable | vector | The transactions still needed for block reconstruction. |