This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 13 May 2019 | 
| Upload Date | 08 May 2019 | 
| File Name | iPad_64bit_TouchID_12.3_16F156_Restore.ipsw | 
| File Size | 2.84 GB | 
| SHA256sum | b7f026061a6f6c978faa1caea129b72cd39860906aba4594ccfa4e06f9b5a7c6 | 
| MD5sum | 8b39204a78e2982796274ddb13cd657c | 
| SHA1sum | af9e7df472c7d292482386b9648a09c5fb6165e8 | 
| Identifier | iPad5,4 | 
cd ~/Downloads.idevicerestore -e iPad_64bit_TouchID_12.3_16F156_Restore.ipsw and press Enter.