Wanted to add that latest zallet can be used to verify transparent votes like with zcashd or trezor.
./zallet rpc verifymessage '"t1VydNnkjBzfL1iAMyUbwGKJAF7PgvuCfMY"' '"H3RY+6ZfWUbzaaXxK8I42thf+f3tOrwKP2elphxAxq8tKypwJG4+V7EGR+sTWMZ5MFyvTQW8ZIV0yGU+93JTioA="' '"20251117: 1 Yay; 2 Yay; 3 Yay; 4 Yay; 5 Nay; 6 Nay; 7 Yay; 8 Yay; 9 Nay"' | jq
true