diff --git a/research_poc.py b/research_poc.py
new file mode 100644
index 0000000..020b20d
--- /dev/null
+++ b/research_poc.py
@@ -0,0 +1,51 @@
+#!/usr/bin/env python3
+import argparse
+from pathlib import Path
+
+
+__version__ = "0.0.1"
+__author__ = "rigodron, algoflash, GGLinnk"
+__OriginalAutor__ = "infval"
+__license__ = "MIT"
+__status__ = "developpement"
+
+
+def get_argparser():
+    parser = argparse.ArgumentParser(description='Test tool - Proof Of Concept')
+    parser.add_argument('input_path',  metavar='INPUT',  help='')
+
+    group.add_argument('-tcp', '--test-compare-position',   action='store_true', help="compare plxxxx.pzz subfiles with plxxxx files inside unpacked afs_data")
+    return parser
+
+
+if __name__ == '__main__':
+    args = get_argparser().parse_args()
+
+    p_input = Path(args.input_path)
+
+    if args.test_compare_position:
+        # FULL_AFS_FILE_DUMP contains all unpacked files from afs_data.afs
+        # unpack_path contains result of pzztool.py -bunpzz on all pzz files
+        # What you have to compare (prove that files of borgs (plxxxx.pzz) are positional and same as pl files in the root of afs_data) :
+        # pzztest.py -tcp 0 data.bin
+        #     Some afs_data files are named data2 or data3 and it's sometime absent
+        # pzztest.py -tcp 2 hit.bin
+        # pzztest.py -tcp 3 mot.bin
+        # pzztest.py -tcp 4 _mdl.arc
+        # pzztest.py -tcp 5 b_mdl.arc
+        # pzztest.py -tcp 6 g_mdl.arc
+        # pzztest.py -tcp 7 s_mdl.arc
+        # pzztest.py -tcp 8 c_mdl.arc
+        # pzztest.py -tcp 9 k_mdl.arc
+
+        for pzzpart_path in unpack_path.glob(f"**/00{p_input}*"):
+            file_path = afsdump_path / pzzpart_path.parent.name / p_output
+
+            if pzzpart_path.parent.name[:2] == "pl":
+                if not file_path.is_file():
+                    print(f"File doesn't exist : {file_path}")
+                elif pzzpart_path.stat().st_size == 0:
+                    print(f"File is empty : {pzzpart_path}")
+                else:
+                    if not verify_sha256_2(pzzpart_path, file_path):
+                        print(f"DIFFERENCE : {pzzpart_path} - {file_path}")