# Installer opentimestamps-client avec Homebrew, Nix

Consultez les chemins d'installation, exécutables, métadonnées et notes de sécurité de opentimestamps-client pour les workflows d'agents IA.

## installation

```sh
sudo av install brew:opentimestamps-client
```

Commandes d'installation supplémentaires:

### macOS

- Homebrew (100%):

```sh
brew install opentimestamps-client
```

  Preuve: local Homebrew formula metadata

### Linux

- Nix (92%):

```sh
nix profile install nixpkgs#opentimestamps-client
```

  Preuve: nixpkgs package indexes: pkgs/by-name/op/opentimestamps-client/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

## Faits du paquet

- **Clé du paquet:** brew:opentimestamps-client
- **Gestionnaire de paquets:** Homebrew
- **Version:** 0.7.2
- **Résumé source:** Create and verify OpenTimestamps proofs
- **Page d'accueil:** <https://opentimestamps.org>
- **Dernière mise à jour:** 2026-07-25T10:38:30Z
- **Généré:** 2026-08-03T19:37:03+00:00

## exécutables

- ots-git-gpg-wrapper (alias)

## Comportement d'installation

- Bouteille: non disponible

## Version et fraîcheur

- page générée: 2026-08-03
- version du gestionnaire: 0.7.2
## Historique du projet et usages

OpenTimestamps Client is the Python command-line implementation for creating and verifying OpenTimestamps proofs. It anchors file and Git-commit timestamps to Bitcoin-backed attestations, producing small `.ots` proof files that can be checked independently later.

### Historique du projet

Peter Todd announced OpenTimestamps in September 2016 as a scalable, trust-minimized, distributed timestamping scheme using Bitcoin. The design separates the timestamp proof format from any single web service: calendars aggregate commitments, Bitcoin supplies the public time attestation, and clients can later verify proofs against the blockchain.

The client repository packages the everyday tooling around that protocol: stamping files, upgrading pending timestamps, verifying proofs, and integrating timestamps into PGP-signed Git commits. The Git integration work targeted a software-supply-chain problem: a commit signature proves who signed a commit, while a timestamp helps show when that signature existed.

### Historique d'adoption

OpenTimestamps appealed to users who wanted blockchain-backed proof-of-existence without putting whole documents on-chain or trusting a single timestamping authority. Public calendar servers made ordinary timestamp creation cheap and fast, while local verification with Bitcoin Core kept the trust model understandable for security-sensitive users.

The client remained niche compared with general signing tools, but it developed a small ecosystem of protocol implementations in Python, JavaScript, Java, and Rust. Its strongest adoption story is in release engineering, archival proof, research-notebook integrity, and Git-history timestamping rather than broad consumer file sharing.

### Modes d'utilisation

Users run commands such as `ots stamp`, `ots verify`, and Git wrapper commands to create proof files, complete pending attestations, and check that a file or commit existed before a Bitcoin block time. Verification can use a local Bitcoin Core node, including a pruned node, so the proof does not depend on the original calendar server staying online.

The package’s `ots-git-gpg-wrapper` executable is especially package-nerdy: it composes Git signing, GPG signatures, and timestamp proofs so release commits can carry both identity and time evidence.

### Pourquoi les passionnés de paquets s'y intéressent

This package sits at the intersection of packaging, cryptography, and reproducible provenance. It is small, but it gives maintainers a way to attach time evidence to source releases, commits, and artifacts without inventing a full transparency log.

### Chronologie

- 2016-09: OpenTimestamps was announced as a Bitcoin-backed timestamping protocol.
- 2016-09: Git integration was documented as a way to timestamp PGP-signed commits.
- 2020s: client release notes continued to refine Git extraction, cache locations, timestamp display precision, and verification behavior.

### Related projects

- Related projects include opentimestamps-server for calendar services, python-opentimestamps for protocol primitives, java-opentimestamps, javascript-opentimestamps, Bitcoin Core, GnuPG, and Git.

### Sources

- <https://github.com/opentimestamps/opentimestamps-client>
- <https://github.com/opentimestamps/opentimestamps-client/blob/master/doc/git-integration.md>
- <https://github.com/opentimestamps/opentimestamps-client/blob/master/release-notes.md>
- <https://opentimestamps.org/>
- <https://petertodd.org/2016/opentimestamps-announcement>
- <https://petertodd.org/2016/opentimestamps-git-integration>


## Notes de sécurité

Aucun manifest local de gestion des secrets correspondant n'a été trouvé pour opentimestamps-client. Les métadonnées de paquet Nucleus restent publiées ici afin que la couverture future dispose d'une URL stable.


## Autres enregistrements de gestionnaires de paquets

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


## Combined YAML source

View the package source record on GitHub. [combined/opentimestamps-client.yml](https://github.com/mxcl/pkgdb/blob/main/combined/opentimestamps-client.yml)


## Sources

- pkg.so package database
- Geiger risk classifier
- curated package history
- pkgdb category and tag curation
- external package-manager database matches
- cross-ecosystem install command graph