Here is verification info I have copied from Appverifier for some of my apps, all installed from Play Store. I believe all of these (maybe except for Zotero) can also be obtained from the apps' websites or GitHub:
Element
im.vector.app
F3:FF:38:D2:E5:A6:38:84:86:4A:4E:0D:45:C5:3B:19:8E:7E:39:C0:50:5B:D9:63:F5:55:D6:53:2D:EA:BF:5F
GitHub
com.github.android
DF:08:C9:F2:D8:09:18:9D:9D:50:64:97:C1:57:45:A7:39:5A:41:53:6E:FB:43:3E:3A:EE:1A:ED:BE:11:B2:61
Standard Notes
com.standardnotes
58:3F:C4:1B:49:0C:38:0B:56:FB:E9:EE:47:38:1E:B4:EF:53:E0:37:19:A5:50:3F:C1:F2:9D:CD:8E:28:90:2A
Wireguard
com.wireguard.android
84:A1:3F:A2:C4:E0:06:4B:0C:11:65:4B:8A:86:57:4B:7A:9B:93:52:A3:83:4C:EE:32:45:5B:06:1C:3D:41:27
Voice
de.ph1b.audiobook
11:A4:CA:EE:0B:A3:EB:5A:35:2D:11:25:AB:D3:29:25:20:9E:89:60:15:A5:D9:CA:0F:D9:F8:2D:AE:20:4F:AA
Openreads
software.mdev.bookstracker
98:15:6C:9C:CB:52:8E:18:2A:58:85:40:CF:6C:16:EC:45:57:7C:FD:B9:B6:85:A5:BB:6F:79:97:03:DE:F3:7D
Zotero
org.zotero.android
37:B6:F1:19:C3:D4:5D:C2:5E:70:69:95:C5:30:F4:44:CF:B2:4C:A6:E7:AF:31:6D:6D:0F:D2:62:47:45:0A:8F
Antennapod
de.danoeh.antennapod
A8:54:1B:7E:6C:69:76:B0:B7:E3:A9:0B:E8:9C:63:A6:66:BE:37:3F:1D:BB:ED:A6:71:AC:2E:17:26:5D:6A:0F
io.ente.photos
37:D4:0B:10:3B:BF:86:43:EB:AE:23:B3:BB:73:F8:65:B4:E9:3A:BF:65:45:EF:37:12:8A:4C:EA:5B:C2:7E:2E