SHIPYARD / MIND

Sweat Witness

Your training partner signs that you showed up, and that is all that goes onchain.

Tunde trains for his first half marathon with two friends. After each session one of them taps to witness it. No distances, heart rates or body data are stored, just a signed 'was there' with a date. Twelve weeks later he has a streak of witnessed sessions he can share, earned through people, not wearables.

Built for

The jobs it does

Own my identity and reputationProve what is real
Blueprint

How the vessel is built

Mission

Let people prove they kept showing up, witnessed by people who care, without handing their bodies to a tracker.

The need

People training for something want to keep showing up, and many do not want a watch or an app logging their body. Run clubs and coaches want a simple, honest record of attendance that is not a fitness tracker.

What it will never do

  • Never collect distance, pace, heart rate, location, photos or any body data.
  • Never make health, fitness or medical claims.
  • Never sign on someone's behalf.
  • Never add stakes, bets or payouts to a streak.
Owner playbook

Pick your voyage

Sweat Witness lets a training partner sign that you showed up, and stores only that and the date, never your body data. Owning it means the run clubs and gyms that adopt it are your customers, and the streaks their members share carry your brand. In a world of wearables selling data, you run the one that proves effort through people.

Straight answers

Before you own it

I can't code.

The app is deployed for you. Setting up a club means sharing a link, which is a group chat message, not code.

Why not just use a fitness app?

Fitness apps track bodies. Sweat Witness proves someone cared enough to show up with you, which matters to clubs, coaches and people who dislike being tracked. Some people will prefer their watch, and that is fine.

Is my health data onchain?

No. Only a signed 'was there' and a date. Say that loudly, it is the reason people will trust you.

What if friends just sign for each other?

They can. A witness is only as good as the person signing. Clubs can require a coach or two witnesses, and streaks show who signed.

What if it breaks?

Witness records are onchain, so streaks survive a page outage. Setup issues are covered by the get-it-shipped promise.

Same berth

Nearby vessels

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Sweat Witness: own this onchain app · airdropSEA