Question on signature

It seems the signature of the playstore version (`1C:B7:C6:2F:65:30:13:83:71:1F:C1:56:04:4A:2C:1D:BE:67:E0:B4:30:C8:F8:C6:9A:D4:32:DE:AF:2D:91:DA`) is not the same as the github release `moshidon.apk` (`1D:D4:D6:DB:71:38:33:58:34:E3:92:7C:C7:45:AD:48:23:6A:BC:52:25:2B:BB:83:69:E9:6B:8B:BA:77:77:20`). Are there any reasons as to why thos signatures are not the same ? Also, it would be great to have the signature put somewhere (perhaps in the README idk) so we can check it