GOVP Studio for desktop
Generate evidence, fix statements and verify records — on your own machine, offline when required. The verifier is open source: you can read it, audit it, and run it without GOVP Studio at all. Every build is signed and its SHA-256 checksum is published below.
macOS
GOVP_Studio-1.0.1-arm64.dmg · 92 MB (96,820,558 bytes) · verify the SHA-256 below after download
macOS
macOS Intel (x86_64) build in preparation.
Linux
Linux (AppImage / .deb) build in preparation.
Windows
Windows (x86_64 installer) build in preparation.
Verify installer integrity
The installer is itself a technical walkthrough of the product: compute the SHA-256 of the file you downloaded and compare it to the checksum above. On macOS/Linux: shasum -a 256 <file>. On Windows: Get-FileHash <file>. If the values match, the build is byte-for-byte what we published.
Version history
- First public desktop release: unified signing/issuing and verification in one app.
- GOVP-1 wire format: Ed25519 over the domain-separated, alphabetically-sorted signing input.
- Offline verification with native WebCrypto Ed25519 and a built-in fallback for older runtimes.
- Verify-by-URL fetches the canonical record with an SSRF guard and no CORS limit.
- Signed and notarized macOS build (Apple Team ID X9TKK84DRV).
Intel macOS, Linux and Windows builds are in preparation. Every release will publish its SHA-256 here. Looking to verify a record without installing anything? Use the online verifier.