diff --git a/src/onionrblocks/insert/main.py b/src/onionrblocks/insert/main.py
index 8f590158..97c3a98c 100644
--- a/src/onionrblocks/insert/main.py
+++ b/src/onionrblocks/insert/main.py
@@ -205,6 +205,7 @@ def insert_block(data: Union[str, bytes], header: str = 'txt',
 
     # send block data (and metadata) to POW module to get tokenized block data
     payload = subprocesspow.SubprocessPOW(data, metadata).start()
+    print(payload)
     if payload != False:  # noqa
         try:
             retData = onionrstorage.set_data(payload)
diff --git a/src/onionrcrypto/cryptoutils/getpubfrompriv.py b/src/onionrcrypto/cryptoutils/getpubfrompriv.py
index 8bb8d7d2..5972d4a4 100644
--- a/src/onionrcrypto/cryptoutils/getpubfrompriv.py
+++ b/src/onionrcrypto/cryptoutils/getpubfrompriv.py
@@ -1,6 +1,28 @@
+"""Onionr - Private P2P Communication.
+
+generate a public ed25519 key from a private one
+"""
 from nacl import signing, encoding
 
 from onionrtypes import UserID, UserIDSecretKey
+"""
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
 
-def get_pub_key_from_priv(priv_key: UserIDSecretKey, raw_encoding:bool=False)->UserID:
-    return signing.SigningKey(priv_key, encoder=encoding.Base32Encoder).verify_key.encode(encoding.Base32Encoder)
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+"""
+
+
+def get_pub_key_from_priv(priv_key: UserIDSecretKey,
+                          raw_encoding: bool = False) -> UserID:
+    return signing.SigningKey(
+        priv_key, encoder=encoding.Base32Encoder).verify_key.encode(
+            encoding.Base32Encoder)
diff --git a/src/onionrcrypto/generate.py b/src/onionrcrypto/generate.py
index 5b6c1e4b..4fdacd9b 100644
--- a/src/onionrcrypto/generate.py
+++ b/src/onionrcrypto/generate.py
@@ -1,27 +1,65 @@
-import nacl.signing, nacl.encoding, nacl.pwhash
+"""Onionr - Private P2P Communication.
+
+functions to generate ed25519 key pairs
+"""
+import nacl.signing
+import nacl.encoding
+import nacl.pwhash
+
 import onionrexceptions
 from onionrutils import bytesconverter
 from etc import onionrvalues
+"""
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+"""
+
+
 def generate_pub_key():
-    '''Generate a Ed25519 public key pair, return tuple of base32encoded pubkey, privkey'''
+    """Generate a Ed25519 public key pair.
+
+    return tuple of base32encoded pubkey, privkey
+    """
     private_key = nacl.signing.SigningKey.generate()
-    public_key = private_key.verify_key.encode(encoder=nacl.encoding.Base32Encoder())
-    return (public_key.decode(), private_key.encode(encoder=nacl.encoding.Base32Encoder()).decode())
+    public_key = private_key.verify_key.encode(
+        encoder=nacl.encoding.Base32Encoder())
+    return (public_key.decode(), private_key.encode(
+        encoder=nacl.encoding.Base32Encoder()).decode())
+
 
 def generate_deterministic(passphrase, bypassCheck=False):
-    '''Generate a Ed25519 public key pair from a phase, not intended for human-generated key'''
+    """Generate a Ed25519 public key pair from a phase.
+
+    not intended for human-generated key
+    """
     passStrength = onionrvalues.PASSWORD_LENGTH
-    passphrase = bytesconverter.str_to_bytes(passphrase) # Convert to bytes if not already
+    # Convert to bytes if not already
+    passphrase = bytesconverter.str_to_bytes(passphrase)
     # Validate passphrase length
     if not bypassCheck:
         if len(passphrase) < passStrength:
-            raise onionrexceptions.PasswordStrengthError("Passphase must be at least %s characters" % (passStrength,))
+            raise onionrexceptions.PasswordStrengthError(
+                "Passphase must be at least %s characters" % (passStrength,))
     # KDF values
     kdf = nacl.pwhash.argon2id.kdf
-    salt = b"U81Q7llrQcdTP0Ux" # Does not need to be secret, but must be 16 bytes
+    # Does not need to be secret, but must be 16 bytes
+    salt = b"U81Q7llrQcdTP0Ux"
     ops = nacl.pwhash.argon2id.OPSLIMIT_SENSITIVE
     mem = nacl.pwhash.argon2id.MEMLIMIT_SENSITIVE
 
-    key = kdf(32, passphrase, salt, opslimit=ops, memlimit=mem) # Generate seed for ed25519 key
+    # Generate seed for ed25519 key
+    key = kdf(32, passphrase, salt, opslimit=ops, memlimit=mem)
     key = nacl.signing.SigningKey(key)
-    return (key.verify_key.encode(nacl.encoding.Base32Encoder).decode(), key.encode(nacl.encoding.Base32Encoder).decode())
+    return (
+        key.verify_key.encode(nacl.encoding.Base32Encoder).decode(),
+        key.encode(nacl.encoding.Base32Encoder).decode())
diff --git a/src/onionrproofs/shellpow.py b/src/onionrproofs/shellpow.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/onionrproofs/subprocesspow.py b/src/onionrproofs/subprocesspow.py
index 9b6b96cf..33571823 100755
--- a/src/onionrproofs/subprocesspow.py
+++ b/src/onionrproofs/subprocesspow.py
@@ -8,13 +8,15 @@ import os
 from multiprocessing import Pipe, Process
 import threading
 import time
+import secrets
+
 import onionrproofs
 
 import ujson as json
 
 import logger
-import onionrcrypto as crypto
 from onionrutils import bytesconverter
+from onionrcrypto.hashers import sha3_hash
 
 """
     This program is free software: you can redistribute it and/or modify
@@ -111,6 +113,7 @@ class SubprocessPOW:
         nonce = 0
         data = self.data
         metadata = self.metadata
+        metadata['nonce'] = secrets.randbits(16)
         puzzle = self.puzzle
         difficulty = self.difficulty
 
@@ -127,7 +130,7 @@ class SubprocessPOW:
             payload = json.dumps(metadata).encode() + b'\n' + data
             # Check sha3_256 hash of block, compare to puzzle
             # Send payload if puzzle finished
-            token = crypto.hashers.sha3_hash(payload)
+            token = sha3_hash(payload)
             # ensure token is string
             token = bytesconverter.bytes_to_str(token)
             if puzzle == token[0:difficulty]:
diff --git a/src/onionrutils/importnewblocks.py b/src/onionrutils/importnewblocks.py
index bd2fa223..7e6bec58 100644
--- a/src/onionrutils/importnewblocks.py
+++ b/src/onionrutils/importnewblocks.py
@@ -1,9 +1,16 @@
-'''
-    Onionr - Private P2P Communication
+"""Onionr - Private P2P Communication.
 
-    import new blocks from disk, providing transport agnosticism
-'''
-'''
+import new blocks from disk, providing transport agnosticism
+"""
+import glob
+
+import logger
+from onionrutils import blockmetadata
+from coredb import blockmetadb
+import filepaths
+import onionrcrypto as crypto
+from etc.onionrvalues import BLOCK_EXPORT_FILE_EXT
+"""
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation, either version 3 of the License, or
@@ -16,18 +23,11 @@
 
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
-'''
-import glob
-import logger
-from onionrutils import blockmetadata
-from coredb import blockmetadb
-import filepaths
-import onionrcrypto as crypto
-from etc.onionrvalues import BLOCK_EXPORT_FILE_EXT
+"""
+
+
 def import_new_blocks(scanDir=''):
-    '''
-        This function is intended to scan for new blocks ON THE DISK and import them
-    '''
+    """Scan for new blocks ON THE DISK and import them"""
     blockList = blockmetadb.get_block_list()
     exist = False
     if scanDir == '':
@@ -35,18 +35,26 @@ def import_new_blocks(scanDir=''):
     if not scanDir.endswith('/'):
         scanDir += '/'
     for block in glob.glob(scanDir + "*%s" % (BLOCK_EXPORT_FILE_EXT,)):
-        if block.replace(scanDir, '').replace(BLOCK_EXPORT_FILE_EXT, '') not in blockList:
+        if block.replace(scanDir, '').replace(BLOCK_EXPORT_FILE_EXT, '') \
+                not in blockList:
             exist = True
             logger.info('Found new block on dist %s' % block, terminal=True)
             with open(block, 'rb') as newBlock:
-                block = block.replace(scanDir, '').replace(BLOCK_EXPORT_FILE_EXT, '')
-                if crypto.hashers.sha3_hash(newBlock.read()) == block.replace(BLOCK_EXPORT_FILE_EXT, ''):
-                    blockmetadb.add_to_block_DB(block.replace(BLOCK_EXPORT_FILE_EXT, ''), dataSaved=True)
+                block = block.replace(scanDir, '').replace(
+                    BLOCK_EXPORT_FILE_EXT, '')
+                if crypto.hashers.sha3_hash(newBlock.read()) == block.replace(
+                        BLOCK_EXPORT_FILE_EXT, ''):
+                    blockmetadb.add_to_block_DB(block.replace(
+                        BLOCK_EXPORT_FILE_EXT, ''), dataSaved=True)
                     logger.info('Imported block %s' % block, terminal=True)
                     blockmetadata.process_block_metadata(block)
                 else:
-                    logger.warn('Failed to verify hash for %s' % block, terminal=True)
+                    logger.warn('Failed to verify hash for %s' % block,
+                                terminal=True)
     if not exist:
         logger.info('No blocks found to import', terminal=True)
 
-import_new_blocks.onionr_help = f"Scans the Onionr data directory under {filepaths.block_data_location} for new block files (.db not supported) to import"
+
+import_new_blocks.onionr_help = \
+    f"Scan the Onionr data directory under {filepaths.block_data_location}" + \
+    "for new block files (.db not supported) to import"