diff --git a/.idea/deployment.xml b/.idea/deployment.xml
new file mode 100644
index 0000000..5a3288f
--- /dev/null
+++ b/.idea/deployment.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="PublishConfigData" serverName="abf.development.bitaps.com">
+    <serverData>
+      <paths name="abf.development.bitaps.com">
+        <serverdata>
+          <mappings>
+            <mapping deploy="/home/ubuntu/pybtc" local="$PROJECT_DIR$" web="/" />
+          </mappings>
+        </serverdata>
+      </paths>
+    </serverData>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml
new file mode 100644
index 0000000..1f7c45d
--- /dev/null
+++ b/.idea/inspectionProfiles/Project_Default.xml
@@ -0,0 +1,14 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="PyPackageRequirementsInspection" enabled="true" level="WARNING" enabled_by_default="true">
+      <option name="ignoredPackages">
+        <value>
+          <list size="1">
+            <item index="0" class="java.lang.String" itemvalue="secp256k1" />
+          </list>
+        </value>
+      </option>
+    </inspection_tool>
+  </profile>
+</component>
\ No newline at end of file
diff --git a/.idea/webServers.xml b/.idea/webServers.xml
new file mode 100644
index 0000000..cafab32
--- /dev/null
+++ b/.idea/webServers.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="WebServers">
+    <option name="servers">
+      <webServer id="1f492b7d-074d-4daf-a1cc-e30c002cdb0d" name="abf.development.bitaps.com" url="http://abf.development.bitaps.com">
+        <fileTransfer host="abf.development.bitaps.com" port="22" privateKey="$USER_HOME$/.ssh/bitapps" rootFolder="/home/ubuntu/" accessType="SFTP" keyPair="true">
+          <advancedOptions>
+            <advancedOptions dataProtectionLevel="Private" />
+          </advancedOptions>
+          <option name="port" value="22" />
+        </fileTransfer>
+      </webServer>
+    </option>
+  </component>
+</project>
\ No newline at end of file
diff --git a/pybtc/blockchain.py b/pybtc/blockchain.py
index 3d59474..f4704e1 100644
--- a/pybtc/blockchain.py
+++ b/pybtc/blockchain.py
@@ -912,3 +912,15 @@ class BlockTemplate():
             block += t["data"]
         return double_sha256(header,1), block
 
+    def build_orphan(self, hash, ntime):
+        self.previous_block_hash = hexlify(reverse_hash(s2rh(hash))).decode()
+        self.time = hexlify(ntime.to_bytes(4, "big")).decode()
+        self.height += 1
+        self.transactions = list()
+        self.txid_list = list()
+        self.scan_tx_list()
+        self.coinbase_tx = self.create_coinbase_transaction()
+        self.coinb1, self.coinb2 = self.split_coinbase()
+        self.target = bits2target(self.bits)
+        self.difficulty = target2difficulty(self.target)
+        self.merkle_branches = [hexlify(i).decode() for i in merkle_branches([self.coinbase_tx.hash, ] + self.txid_list)]
\ No newline at end of file