raulcd commented on issue #47932:
URL: https://github.com/apache/arrow/issues/47932#issuecomment-3442760951

   If I use something slightly fancier like diffoscope to validate binaries 
reproducibility I get the file timestamp update, the filesize change and the 
actual modification:
   ```
   $ diffoscope pyarrow-22.0.0 old/pyarrow-22.0.0/
   --- pyarrow-22.0.0
   +++ old/pyarrow-22.0.0/
   ├── stat {}
   │ @@ -1,8 +1,8 @@
   │  
   │    Size: 4096              Blocks: 8          IO Block: 4096   directory
   │  Device: 259,3     Links: 5
   │  Access: (0755/drwxr-xr-x)  Uid: ( 1000/  raulcd)   Gid: ( 1000/  raulcd)
   │  
   │ -Modify: 2025-10-24 11:44:48.067473693 +0000
   │ +Modify: 2025-10-20 14:57:00.784929500 +0000
   │   --- pyarrow-22.0.0/setup.cfg
   ├── +++ old/pyarrow-22.0.0/setup.cfg
   │ @@ -1,7 +1,12 @@
   │ +[metadata]
   │ +license_files = 
   │ +  ../LICENSE.txt
   │ +  ../NOTICE.txt
   │ +
   │  [build_sphinx]
   │  source-dir = doc/
   │  build-dir = doc/_build
   │  
   │  [tool:pytest]
   │  addopts = --ignore=scripts
   │  filterwarnings =
   │ ├── stat {}
   │ │ @@ -1,8 +1,8 @@
   │ │  
   │ │ -  Size: 383             Blocks: 8          IO Block: 4096   regular file
   │ │ +  Size: 443             Blocks: 8          IO Block: 4096   regular file
   │ │  Device: 259,3   Links: 1
   │ │  Access: (0644/-rw-r--r--)  Uid: ( 1000/  raulcd)   Gid: ( 1000/  raulcd)
   │ │  
   │ │ -Modify: 2025-10-24 11:33:19.249439549 +0000
   │ │ +Modify: 2025-10-20 14:57:00.785329800 +0000
   ```


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