OpenViSTAI · Agents · Blockchain · Crypto
Submit a project
Menu
ZK & Privacy

Arklib

Arklib is an open-source Lean 4 library that formally models and verifies succinct non-interactive arguments of knowledge, using interactive oracle reductions as a compositional foundation for SNARK protocol specifications and completeness and soundness proofs.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Arklib — OpenViST project profile in ZK & Privacy.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use Arklib when the task is to formalize SNARK structure and security properties in Lean, especially when protocol components need to be composed from reusable oracle-reduction abstractions.

Who it is for

  • Lean users researching SNARK and zero-knowledge protocols.
  • Engineers developing reusable formal models of proof-system components.
  • Contributors working on machine-checked protocol specifications and security proofs.

Documented uses

  • Specify SNARK components and protocols in Lean.
  • Compose and lift interactive oracle reductions across compatible relations.
  • Develop completeness and round-by-round knowledge-soundness proofs.
  • Study transformations from interactive oracle protocols to non-interactive arguments.
Before you choose

Requirements & limits

The repository is public and open source under the Apache-2.0 license. The documented development stack is Lean; mathlib and VCV-io are identified as important dependencies.

  • The project is centered on formal verification rather than a user-facing proving application.
  • Its abstraction layer is interactive oracle reductions, with composition and lifting used to build larger protocols.
  • Active work covers selected systems and prerequisites, including Sum-Check, Spartan, FRI, STIR, WHIR and Binius.
  • The repository describes future work on functional equivalence with Rust implementations through hax, rather than presenting that comparison as complete.

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

Set up the Arklib development context

Prepare a Lean-based environment for working with Arklib’s formal SNARK library.

Before you start

  • A supported Linux, macOS or Windows platform.
  • Lean as the project language.
  • The Arklib repository, with mathlib and VCV-io identified as dependencies.

Steps

  1. Obtain the public Arklib repository from its GitHub source.

  2. Use the repository’s Lean-based project structure as the development context.

  3. Review the library structure, roadmap and active formalizations to select a protocol area.

  4. Consult the project’s contributing documentation and issue list for available work.

Expected outcome

A Lean project context for examining or contributing to Arklib’s formal models of SNARK-related protocols.

Guide limitations

  • The source describes the library as in development.
  • This setup recipe does not document a complete build, execution or protocol-verification run.
Documentation 1 ↗Documentation 2 ↗
Evidence and transparency

Sources & review

Official repository ↗Guide documentation ↗
Source record details
Source availability
Active
Sources checked
3 October 2026
Original website title
Verified-zkEVM/ArkLib · Official homepage title · retained in its source language
How we review sourcesSuggest a correction