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The Compact

The Compact is an ownerless Solidity smart contract implementing an ERC-6909 system for forming and mediating reusable resource locks. Deposited native tokens or ERC-20 assets back lock tokens; sponsors can make assets claimable under defined terms, and designated arbiters process claims.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

The Compact — OpenViST project profile in Smart Contracts.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use the repository when designing or assessing applications that need token-backed commitments with defined claim conditions, allocator authorization and arbiter-mediated processing. Its multichain scope may suit cross-chain designs, subject to the integration’s own requirements.

Who it is for

  • Solidity developers evaluating token-backed commitment and claim flows.
  • Application teams exploring reusable resource locks for single-chain or multichain designs.
  • Depositors, sponsors, claimants, arbiters and allocator developers working with the protocol’s roles.

Documented uses

  • Deposit native or ERC-20 tokens to create a resource lock represented by ERC-6909 tokens.
  • Set lock properties, including allocator, scope and reset period.
  • Create a compact with claim terms and a designated arbiter.
  • Authorize lock transfers, withdrawals or sponsorship through an allocator.
  • Process claims against compact terms and, where applicable, initiate a forced withdrawal after the reset period.
Before you choose

Requirements & limits

The repository is public and specifies an MIT license. The README identifies deployments on Mainnet, Unichain and Base.

  • A depositor selects an allocator, a single-chain or multichain scope, and a reset period when creating a lock.
  • The allocator must be registered before it can be selected; it authorizes specified lock uses to help protect claimants against reuse of committed balances.
  • An arbiter is responsible for processing claims against the compact’s conditions; the README makes arbiter reliability a trust assumption for both sponsors and claimants.
  • A forced withdrawal is available after the chosen reset period if the allocator fails to authorize use of an unallocated balance.
  • The README warns that V1 changes interfaces and functionality from V0, making version review important for existing integrations.

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

Prepare the repository for Foundry development

Clone The Compact, install its dependencies and run its documented Foundry tests.

Before you start

  • Foundry; the README provides its official installer command.
  • Git access to the public repository.

Steps

  1. Clone https://github.com/Uniswap/the-compact.git and enter the repository directory.

  2. Run forge install to install dependencies and libraries.

  3. Run forge test -v --isolate to run the tests and gas snapshots.

Expected outcome

The repository is set up with its dependencies, and the documented Foundry test command is ready to run.

Guide limitations

  • The repository also mentions a small number of optional Hardhat tests; this guide does not cover them.
  • This describes the repository's documented workflow, not an independently run test.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
Active
Sources checked
9 October 2026
Original website title
Uniswap/the-compact · Official homepage title · retained in its source language
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