diff --git a/README.md b/README.md
index fb6562c..363e20d 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,8 @@ A minimalistic implementation of [BIP 32](https://github.com/bitcoin/bips/blob/m
 # You can also use "h" or "H" to signal for hardened derivation
 >>> bip32.get_xpub_from_path("m/0h/42")
 'xpub69uEaVYoN1mZyMon8qwRP41YjYyevp3YxJ68ymBGV7qmXZ9rsbMy9kBZnLNPg3TLjKd2EnMw5BtUFQCGrTVDjQok859LowMV2SEooseLCt1'
+>>> bip32.get_key_origin_xkey_from_path("xpub", "m/0h/42")
+'[b2b1f0cf/0h/42]xpub69uEaVYoN1mZyMon8qwRP41YjYyevp3YxJ68ymBGV7qmXZ9rsbMy9kBZnLNPg3TLjKd2EnMw5BtUFQCGrTVDjQok859LowMV2SEooseLCt1'
 # You can use pubkey-only derivation
 >>> bip32 = BIP32.from_xpub("xpub6AKC3u8URPxDojLnFtNdEPFkNsXxHfgRhySvVfEJy9SVvQAn14XQjAoFY48mpjgutJNfA54GbYYRpR26tFEJHTHhfiiZZ2wdBBzydVp12yU")
 >>> bip32.get_xpub_from_path([42, 43])
diff --git a/bip32/bip32.py b/bip32/bip32.py
index e8df204..3429a96 100644
--- a/bip32/bip32.py
+++ b/bip32/bip32.py
@@ -89,8 +89,6 @@ def __init__(
                 )
             if index != 0:
                 raise InvalidInputError("Index must be 0 if depth is 0 (master xpub)")
-        if network not in ["main", "test"]:
-            raise InvalidInputError("Unknown network")
 
         self.chaincode = chaincode
         self.privkey = privkey
@@ -179,7 +177,7 @@ def get_pubkey_from_path(self, path):
 
         :param path: A list of integers (index of each depth) or a string with
                      m/x/x'/x notation. (e.g. m/0'/1/2'/2 or m/0H/1/2H/2).
-        :return: privkey (bytes)
+        :return: pubkey (bytes)
         """
         return self.get_extended_pubkey_from_path(path)[1]
 
@@ -198,7 +196,7 @@ def get_xpriv_from_path(self, path):
 
         if len(path) == 0:
             return self.get_xpriv()
-        elif len(path) == 1:
+        if len(path) == 1:
             parent_pubkey = self.pubkey
         else:
             parent_pubkey = self.get_pubkey_from_path(path[:-1])
@@ -229,7 +227,7 @@ def get_xpub_from_path(self, path):
 
         if len(path) == 0:
             return self.get_xpub()
-        elif len(path) == 1:
+        if len(path) == 1:
             parent_pubkey = self.pubkey
         else:
             parent_pubkey = self.get_pubkey_from_path(path[:-1])
@@ -245,6 +243,19 @@ def get_xpub_from_path(self, path):
 
         return b58encode_check(extended_key).decode()
 
+    def get_key_origin_xkey_from_path(self, key_type, path):
+        """Get encoded extended key with origin info from a derivation path.
+        :param key_type: 'xpub' for pubkeys or 'xpriv' for privkeys.
+        :param path: a string with m/x/x'/x notation. (e.g. m/0'/1/2'/2
+                    or m/0H/1/2H/2).
+        :return: BIP380 key origin followed by the encoded extended key as str
+        """
+        assert key_type in ["xpub", "xpriv"]
+        if not isinstance(path, str):
+            raise InvalidInputError("'path' must be string")
+        key = getattr(self, f"get_{key_type}_from_path")(path)
+        return f"[{self.get_fingerprint().hex()}{path[1:]}]{key}"
+
     def get_xpriv(self):
         """Get the base58 encoded extended private key."""
         return b58encode_check(self.get_xpriv_bytes()).decode()