CommitPool on Polygon

Overview

CommitPool helps you hold yourself accountable to your personal goals.

Typically, the only accountability tools we can use to stick to our personal goals are our willpower and sense of self-worth. Other tools like monetary penalities and reputation can be more powerful, but they don't work well unless somebody else implements them on us, which introduces trusted intermediaries and counterparty risk.

By minimizing that counterparty risk with smart contracts and decentralized oracles, CommitPool enables you to enforce monetary penalties on yourself.

How to use CommitPool

1. Open the app
2. Connect your Strava Account
3. Fund your in-app wallet with Polygon Matic and DAI
4. Commit and stake!
5. Commit and stake! We recommend keeping your commitment amounts low for testing purposes (.1 Eth/Dai or so) so you don't have to keep refilling at a faucet
6. Hit your goal
7. Profit?

How we built it

CommitPool users register commitments with our smart contract. Those commitments include an activity (biking or running), a time period (e.g. 2 days), a distance goal (e.g. 5 miles), and a stake amount (e.g. 5 DAI).

We use Chainlink to bring their activity distance data on-chain, where our contract checks whether they met their distance goal. If so, they get their stake back; but if not, their stake gets slashed.

The Polygon's speed and low transaction fees are crucial to create a viable user experience for CommitPool. Higher tx fees would eat significantly into the amounts we expect most users to be staking on their commitments.

We built a web app for users to create a commitment, track their progress against their goal, and withdraw their stake (if they fulfilled their commitment). Since our current focus is on fitness goals, our original vision was to build a mobile app, so we're using React Native with Metro to support a web app with the same code base.

What we want to do next

• Refine the UX so that creating a commitment is even smoother/clearer
• Support metatransactions
• Extend our app to support mobile
• Support users' existing wallets (e.g. on mobile via mobile WalletConnect)
• Update our contract to enable positive rewards (i.e. slashed stakes get distributed to users who meet their commitment).
• Cover the LINK oracle fee for users
• Add additional types of commitments (e.g. additional Strava activity types, Duolingo commitments, etc.)

References

• The verified CommitPool smart contract on Polygon: 0x91e17f2a995f7eb830057a2f83ada3a50a37f20d
• The CommitPool web app
• Hackathon demo video