diff --git a/tests/miner.py b/tests/miner.py
new file mode 100644
index 0000000..e89d98c
--- /dev/null
+++ b/tests/miner.py
@@ -0,0 +1,68 @@
+from random import randint, random
+from xxhash import xxh32
+from time import time
+
+# Settings
+global zeros, MAX_NONCE
+zeros = 6 #DON'T CHANGE!
+MAX_NONCE = 10**10
+
+# Generate fast hash
+def sha(text):
+    text = str(text)
+    return xxh32(text).hexdigest()
+
+# Check if hashes match
+def check(new_hash, zeros):
+    if new_hash.startswith('0'*zeros):
+        return True
+    else:
+        return False
+
+def mine(block):
+    start_time = time()
+    # New hash
+    text = block["ph"] + str(block["nonce"]) + block["ts"]
+    block["ph"] = sha(text)
+    while True:
+        text = block["ph"] + str(block["nonce"]) + block["ts"]
+        
+        if check(sha(text), zeros):
+            print("NONCE: ", block["nonce"])
+            print("Hash: ", sha(text))
+            break
+        block["nonce"] = randint(1, MAX_NONCE)
+
+    print("--- %s seconds ---" % (time() - start_time))
+    return block
+
+pblock = {
+  "ph": "5bb98b81",
+  "nonce": 1,
+  "ts": "Some transaction data"
+}
+
+# Block
+ph = sha(pblock)
+block = {
+  "ph": ph,
+  "nonce": 1,
+  "ts": "Some transaction data"
+}
+
+
+
+import data
+#'''
+while True:
+    block = mine(block)
+
+    # Write blocks
+    blocks = data.mine.read()
+    blocks.append(block)
+    data.mine.write(blocks)
+#'''
+
+
+#blocks = data.mine.read()
+#print(len(blocks))