diff --git a/broadcast/transaction_options.go b/broadcast/transaction_options.go
index 49bfeaa..156b775 100644
--- a/broadcast/transaction_options.go
+++ b/broadcast/transaction_options.go
@@ -31,15 +31,15 @@ type TransactionOpts struct {
 // and receive the transaction details and status.
 func WithCallback(callbackURL string, callbackToken ...string) TransactionOptFunc {
 	return func(o *TransactionOpts) {
-		o.CallbackToken = callbackURL
+		o.CallbackURL = callbackURL
 		if len(callbackToken) > 0 {
 			o.CallbackToken = callbackToken[0]
 		}
 	}
 }
 
-// WithMerkleProof will return merkle proof from Arc.
-func WithMerkleProof() TransactionOptFunc {
+// WithMerkleProofFromCallback it's an option that indicates if the merkle proof should be returned in callback.
+func WithMerkleProofFromCallback() TransactionOptFunc {
 	return func(o *TransactionOpts) {
 		o.MerkleProof = true
 	}
diff --git a/broadcast/tx_status.go b/broadcast/tx_status.go
index 3e98e72..43cee84 100644
--- a/broadcast/tx_status.go
+++ b/broadcast/tx_status.go
@@ -25,6 +25,8 @@ const (
 	SeenOnNetwork TxStatus = "SEEN_ON_NETWORK" // 8
 	// Mined status means that transaction has been mined into a block by a mining node.
 	Mined TxStatus = "MINED" // 9
+	// SeenInOrphanMempool means that transaction has been sent to at least 1 Bitcoin node but parent transaction was not found.
+	SeenInOrphanMempool TxStatus = "SEEN_IN_ORPHAN_MEMPOOL" // 10
 	// Confirmed status means that transaction is marked as confirmed when it is in a block with 100 blocks built on top of that block.
 	Confirmed TxStatus = "CONFIRMED" // 108
 	// Rejected status means that transaction has been rejected by the Bitcoin network.
@@ -62,6 +64,8 @@ func MapTxStatusToInt(status TxStatus) (int, bool) {
 		value = 8
 	case Mined:
 		value = 9
+	case SeenInOrphanMempool:
+		value = 10
 	case Confirmed:
 		value = 108
 	case Rejected: