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Alpenglow

Alpenglow is a Rust research reference implementation of a proof-of-stake consensus protocol, with tools for local multi-node clusters, protocol simulations and a rudimentary standalone node prototype.

Independent OpenViST project profile, based on linked sources.

Alpenglow — OpenViST project profile in Protocols.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use it for code-level study and controlled experiments with Alpenglow consensus, rather than as a documented production blockchain service.

Who it is for

  • Protocol researchers examining consensus resilience, latency or bandwidth requirements.
  • Rust developers prototyping or evaluating consensus nodes in controlled test clusters.

Documented uses

  • Start a two-node local cluster and observe node progress.
  • Simulate Rotor resilience and Alpenglow latency and bandwidth requirements.
  • Define peer addresses, generate configuration files and run standalone prototype nodes.
  • Use repository recipes for development tasks such as tests, benchmarks, fuzzing and coverage.
Before you choose

Requirements & limits

The repository is public and licensed under Apache-2.0.

  • The local cluster example starts two nodes communicating via UDP on localhost.
  • Simulation settings are configured by editing constants in the simulation source.
  • The standalone prototype requires peers to be specified manually and does not include gossip or stake manipulation.
  • Some simulations require a public ping dataset downloaded with the provided script.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Start the documented two-node local cluster

Launch the repository’s local example cluster and view node progress in the console.

Before you start

  • A local checkout of the Alpenglow repository.
  • The repository’s Rust project environment.

Steps

  1. From the repository directory, run ./run.sh.

  2. Observe console output showing progress from the two nodes communicating over UDP on localhost.

Expected outcome

A local two-node cluster starts, with node progress printed in the console.

Guide limitations

  • This example is a local cluster, not a production network.
  • The instructions do not specify an operating-system support matrix.
Source-based practical guide

Run the protocol simulations

Run the simulations binary for documented resilience, latency and bandwidth analysis.

Before you start

  • A local checkout and Rust toolchain.
  • For the latency simulation, the public ping dataset downloaded using the repository script.

Steps

  1. For simulations requiring the ping dataset, run ./download_data.sh.

  2. Run RUST_LOG="simulations=debug" cargo run --release --bin=simulations.

Expected outcome

The simulations binary runs protocol simulations, including Rotor resilience and latency and bandwidth requirements.

Guide limitations

  • Simulation configuration is changed through constant values in src/bin/simulations/main.rs.
  • The ping dataset is specifically noted as a prerequisite for some simulations, including latency.
Evidence and transparency

Sources & review

Source record details
Source availability
Active
Sources checked
11 October 2026
Original website title
qkniep/alpenglow · Official homepage title · retained in its source language