# Install witness

Automates, normalizes, and verifies software artifact provenance. Version 0.11.0 via Homebrew; verified 2026-04-14.

## Install

```sh
sudo av install brew:witness
```

Additional install commands:

### macOS

- Homebrew (100%):

```sh
brew install witness
```

  Evidence: local Homebrew formula metadata

### Linux

- Nix (92%):

```sh
nix profile install nixpkgs#witness
```

  Evidence: nixpkgs package indexes: pkgs/by-name/wi/witness/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

## Package Facts

- **Package key:** brew:witness
- **Package manager:** Homebrew
- **Package manager URL:** <https://formulae.brew.sh/formula/witness>
- **Version:** 0.11.0
- **Source summary:** Automates, normalizes, and verifies software artifact provenance
- **Homepage:** <https://witness.dev>
- **Repository:** <https://github.com/in-toto/witness>
- **Upstream docs:** <https://witness.dev/>
- **License:** Apache-2.0
- **Source archive:** <https://github.com/in-toto/witness/archive/refs/tags/v0.11.0.tar.gz>
- **Last updated:** 2026-04-14T22:15:45Z
- **Generated:** 2026-06-10T07:18:26+00:00

## Executables

- witness (cli)
- witness (alias)

## Build Dependencies

- go

## Install Behavior

- Post-install hook: not defined
- Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux

## Freshness

- Page generated: 2026-06-10
- Package-manager version: 0.11.0
- Package-manager updated: 2026-04-14
- Local data status: ok
- Upstream repository: https://github.com/in-toto/witness
- Upstream latest detected: v0.11.0 (current)

## セキュリティノート

narrow executable package without higher-risk signals.

- **Geiger risk:** green / low
- narrow executable package without higher-risk signals

## Source Database Details

- **Source Database:** Homebrew formula API
- **Tap:** homebrew/core
- **Full Name:** witness
- **Version Scheme:** 0
- **Revision:** 0
- **Head Version:** HEAD
- **Bottle Stable Root URL:** <https://ghcr.io/v2/homebrew/core>
- **Deprecated:** no
- **Disabled:** no
- **Keg Only:** no
- **URL Keys:** head, stable

## Other Package-Manager Records

- Nix - witness: normalized package name match | nixpkgs package indexes: pkgs/by-name/wi/witness/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1


## Related Links

- [Terminal utility packages](https://www.automicvault.com/ja/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata.
- [Networking and protocol packages](https://www.automicvault.com/ja/pkg/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata.
- [Security and crypto packages](https://www.automicvault.com/ja/pkg/security-crypto-tools/) - Matched security, identity, cryptography, password, signing, or certificate metadata.
- [Homebrew utility packages](https://www.automicvault.com/ja/pkg/brew-utility-packages/) - Matched Homebrew package provider.
- [go](https://www.automicvault.com/ja/pkg/brew/go/) - Build dependency declared by Homebrew.
- [slsa-verifier](https://www.automicvault.com/ja/pkg/brew/slsa-verifier/) - Shares av.db curated category or tags: cli, provenance, security, supply-chain, supply-chain-security.
- [zizmor](https://www.automicvault.com/ja/pkg/brew/zizmor/) - Shares av.db curated category or tags: cli, security, supply-chain, supply-chain-security.
- [vet](https://www.automicvault.com/ja/pkg/brew/vet/) - Shares av.db curated category or tags: cli, security, supply-chain, supply-chain-security.
- [opensca-cli](https://www.automicvault.com/ja/pkg/brew/opensca-cli/) - Shares av.db curated category or tags: cli, security, supply-chain, supply-chain-security.
- [parlay](https://www.automicvault.com/ja/pkg/brew/parlay/) - Shares av.db curated category or tags: cli, security, supply-chain, supply-chain-security.
- [chain-bench](https://www.automicvault.com/ja/pkg/brew/chain-bench/) - Shares av.db curated category or tags: cli, security, supply-chain, supply-chain-security.
- [ratify](https://www.automicvault.com/ja/pkg/brew/ratify/) - Shares av.db curated category or tags: cli, security, supply-chain, supply-chain-security.
- [frizbee](https://www.automicvault.com/ja/pkg/brew/frizbee/) - Shares av.db curated category or tags: cli, security, supply-chain.

## Sources

- Nucleus package database
- Geiger risk classifier
- package-page enrichment
- package version freshness
- av.db category and tag curation
- package relationship graph
- external package-manager database matches
- cross-ecosystem install command graph