diff --git a/docs/TODO.txt b/docs/TODO.txt
index ed49b915..f57c4741 100644
--- a/docs/TODO.txt
+++ b/docs/TODO.txt
@@ -15,5 +15,4 @@
 * add BCC support to mail
 
 
-* prevent local insertion success of duplicate block content
 * truncate last N blocks when sharing list
diff --git a/src/etc/onionrvalues.py b/src/etc/onionrvalues.py
index cf68e376..bfe66c37 100755
--- a/src/etc/onionrvalues.py
+++ b/src/etc/onionrvalues.py
@@ -23,7 +23,7 @@ import filepaths
 DENIABLE_PEER_ADDRESS = "OVPCZLOXD6DC5JHX4EQ3PSOGAZ3T24F75HQLIUZSDSMYPEOXCPFA"
 PASSWORD_LENGTH = 25
 ONIONR_TAGLINE = 'Private P2P Communication - GPLv3 - https://Onionr.net'
-ONIONR_VERSION = '5.1.0'
+ONIONR_VERSION = '5.2.0'
 ONIONR_VERSION_CODENAME = 'Genesis'
 ONIONR_VERSION_TUPLE = tuple(ONIONR_VERSION.split('.')) # (MAJOR, MINOR, VERSION)
 API_VERSION = '3' # increments of 1; only change when something fundamental about how the API works changes. This way other nodes know how to communicate without learning too much information about you.
diff --git a/src/onionrproofs/__init__.py b/src/onionrproofs/__init__.py
index a90a7c74..e0f4a956 100755
--- a/src/onionrproofs/__init__.py
+++ b/src/onionrproofs/__init__.py
@@ -7,7 +7,7 @@ import nacl.encoding, nacl.hash, nacl.utils
 
 import config
 import logger
-from onionrblocks import onionrblockapi, storagecounter
+from onionrblocks import onionrblockapi
 from onionrutils import bytesconverter
 from onionrcrypto import hashers
 
@@ -28,16 +28,6 @@ from .blocknoncestart import BLOCK_NONCE_START_INT
 """
 config.reload()
 
-storage_counter = storagecounter.StorageCounter()
-
-def getDifficultyModifier():
-    """returns the difficulty modifier for block storage based
-    on a variety of factors, currently only disk use.
-    """
-    percentUse = storage_counter.get_percent()
-    difficultyIncrease = math.floor(4 * percentUse) # difficulty increase is a step function
-
-    return difficultyIncrease
 
 def getDifficultyForNewBlock(data):
     """
@@ -49,16 +39,18 @@ def getDifficultyForNewBlock(data):
         dataSizeInBytes = len(bytesconverter.str_to_bytes(data))
 
     minDifficulty = config.get('general.minimum_send_pow', 4)
-    totalDifficulty = max(minDifficulty, math.floor(dataSizeInBytes / 1000000.0)) + getDifficultyModifier()
+    totalDifficulty = max(minDifficulty, math.floor(dataSizeInBytes / 1000000.0))
 
     return totalDifficulty
 
+
 def getHashDifficulty(h: str):
     """
         Return the amount of leading zeroes in a hex hash string (hexHash)
     """
     return len(h) - len(h.lstrip('0'))
 
+
 def hashMeetsDifficulty(hexHash):
     """
         Return bool for a hash string to see if it meets pow difficulty defined in config
diff --git a/static-data/default-plugins/circles/flowapi.py b/static-data/default-plugins/circles/flowapi.py
index 8121c079..30668e97 100755
--- a/static-data/default-plugins/circles/flowapi.py
+++ b/static-data/default-plugins/circles/flowapi.py
@@ -108,6 +108,7 @@ def remove_from_cache(board, name):
 
 @flask_blueprint.route('/circles/getpopular/<count>')
 def get_popular(count):
+    read_only_cache.refresh()
     boards = json.loads(read_only_cache.get_raw_json())
     for board in boards:
         boards[board] = len(boards[board])
diff --git a/static-data/default-plugins/circles/web/board.js b/static-data/default-plugins/circles/web/board.js
index 61e10a22..8a2a3be5 100755
--- a/static-data/default-plugins/circles/web/board.js
+++ b/static-data/default-plugins/circles/web/board.js
@@ -94,6 +94,11 @@ function appendMessages(msg, blockHash, beforeHash, channel) {
         if (typeof msg['meta']['signer'] != 'undefined' && msg['meta']['signer'].length > 0){
             div[3].textContent = msg['meta']['signer'].substr(0, 5)
             setHumanReadableIDOnPost(div[3], msg['meta']['signer'])
+            div[3].onclick = function(){
+                navigator.clipboard.writeText(div[3].title).then(function() {
+                    PNotify.notice("Copied poster identity to clipboard")
+                })
+            }
             div[3].title = msg['meta']['signer']
             userIcon(msg['meta']['signer']).then(function(data){
                 identicon[0].src = "data:image/svg+xml;base64," + data
diff --git a/static-data/www/private/index.html b/static-data/www/private/index.html
index 031c893b..b42057ec 100755
--- a/static-data/www/private/index.html
+++ b/static-data/www/private/index.html
@@ -125,7 +125,7 @@
                     </header>
                     <div class="card-content">
                         <div class="content">
-                            <div class="field">
+                            <div class="field" data-tooltip="Site public key or hash (not onion)">
                                 <label class="label">Open Site</label>
                                 <div class="field has-addons">
                                     <p class="control is-expanded">