A successful response indicates that the transaction has been broadcasted to the network.
Transactions may get broadcasted but still fail to be confirmed by the network. To handle these
scenarios, see our guide on speeding up transactions.
Optional developer-provided reference ID for transaction reconciliation. Must be unique per
transaction and up to 64 characters. Use this to correlate transactions with your own internal
records. The reference_id is included in transaction
webhook payloads and can be used to look up
transactions.