diff --git a/kartograf/collectors/routeviews.py b/kartograf/collectors/routeviews.py
index c3458a6..b341600 100644
--- a/kartograf/collectors/routeviews.py
+++ b/kartograf/collectors/routeviews.py
@@ -7,6 +7,7 @@
 import requests
 
 from kartograf.timed import timed
+from kartograf.util import calculate_sha256
 
 # Routeviews Prefix to AS mappings Dataset for IPv4 and IPv6
 # https://www.caida.org/catalog/datasets/routeviews-prefix2as/
@@ -56,11 +57,10 @@ def year_and_month(now):
 
 
 def download(url, file):
-    print(f'Downloading {url}')
-    gz_file = file + ".gz"
+    print(f'Downloading from {url}')
 
     response = requests.get(url, stream=True, timeout=300)
-    with open(gz_file, 'wb') as gz:
+    with open(file, 'wb') as gz:
         for chunk in response.iter_content(chunk_size=8192):
             gz.write(chunk)
 
@@ -88,11 +88,13 @@ def extract(file, context):
 @timed
 def fetch_routeviews_pfx2as(context):
     path = context.data_dir_collectors
-    v4_file = f'{path}routeviews_pfx2asn_ip4.txt'
-    v6_file = f'{path}routeviews_pfx2asn_ip6.txt'
+    v4_file_gz = f'{path}routeviews_pfx2asn_ip4.txt.gz'
+    v6_file_gz = f'{path}routeviews_pfx2asn_ip6.txt.gz'
 
-    download(latest_link(PFX2AS_V4), v4_file)
-    download(latest_link(PFX2AS_V6), v6_file)
+    download(latest_link(PFX2AS_V4), v4_file_gz)
+    print(f"Downloaded {v4_file_gz}, file hash: {calculate_sha256(v4_file_gz)}")
+    download(latest_link(PFX2AS_V6), v6_file_gz)
+    print(f"Downloaded {v6_file_gz}, file hash: {calculate_sha256(v6_file_gz)}")
 
 
 def extract_routeviews_pfx2as(context):
diff --git a/kartograf/irr/fetch.py b/kartograf/irr/fetch.py
index 9742b31..752c024 100644
--- a/kartograf/irr/fetch.py
+++ b/kartograf/irr/fetch.py
@@ -3,6 +3,7 @@
 import shutil
 
 from kartograf.timed import timed
+from kartograf.util import calculate_sha256
 
 IRR_FILE_ADDRESSES = [
     # AFRINIC
@@ -40,6 +41,8 @@ def fetch_irr(context):
 
         ftp.close()
 
+        print(f"Downloaded {file_name}, file hash: {calculate_sha256(local_file_path)}")
+
 
 def extract_irr(context):
     for ftp_file in IRR_FILE_ADDRESSES:
diff --git a/kartograf/rpki/fetch.py b/kartograf/rpki/fetch.py
index da61cd4..84127ce 100644
--- a/kartograf/rpki/fetch.py
+++ b/kartograf/rpki/fetch.py
@@ -6,6 +6,10 @@
 from tqdm import tqdm
 
 from kartograf.timed import timed
+from kartograf.util import (
+    calculate_sha256,
+    calculate_sha256_directory,
+)
 
 TAL_URLS = {
     "afrinic": "http://rpki.afrinic.net/tal/afrinic.tal",
@@ -28,7 +32,7 @@ def download_rir_tals(context):
             with open(tal_path, 'wb') as file:
                 file.write(response.content)
 
-            print(f"Downloaded TAL for {rir.upper()} to {tal_path}")
+            print(f"Downloaded TAL for {rir.upper()} to {tal_path}, file hash: {calculate_sha256(tal_path)}")
             tals.append(tal_path)
 
         except requests.RequestException as e:
@@ -51,12 +55,14 @@ def fetch_rpki_db(context):
     # Download TALs and presist them in the RPKI data folder
     download_rir_tals(context)
     tal_options = [item for path in data_tals(context) for item in ('-t', path)]
-    print("Downloading RPKI Data")
+    print("Downloading RPKI Data, this may take a while.")
     subprocess.run(["rpki-client",
                     "-d", context.data_dir_rpki_cache
                     ] + tal_options,
                    capture_output=True)
 
+    print(f"Downloaded RPKI Data, hash sum: {calculate_sha256_directory(context.data_dir_rpki_cache)}")
+
 
 @timed
 def validate_rpki_db(context):
@@ -93,4 +99,4 @@ def process_file(file):
         res_file.write(",".join(json_results))
         res_file.write("]")
 
-    print(f"{len(json_results)} RKPI ROAs validated and saved to {result_path}")
+    print(f"{len(json_results)} RKPI ROAs validated and saved to {result_path}, file hash: {calculate_sha256(result_path)}")
diff --git a/kartograf/util.py b/kartograf/util.py
index 6dc8e38..d1c3457 100644
--- a/kartograf/util.py
+++ b/kartograf/util.py
@@ -1,5 +1,6 @@
 import hashlib
 import ipaddress
+import os
 import re
 import subprocess
 import time
@@ -15,6 +16,19 @@ def calculate_sha256(file_path):
     return sha256_hash.hexdigest()
 
 
+def calculate_sha256_directory(directory_path):
+    sha256_hash = hashlib.sha256()
+
+    for root, dirs, files in os.walk(directory_path):
+        for file in sorted(files):
+            file_path = os.path.join(root, file)
+            with open(file_path, "rb") as f:
+                for byte_block in iter(lambda: f.read(4096), b""):
+                    sha256_hash.update(byte_block)
+
+    return sha256_hash.hexdigest()
+
+
 def print_section_header(name):
     print()
     print("-" * 3 + f" {name} " + "-" * 3)