Proof of Sweat
You hedge everything except the one position that ends you.
Twelve weeks. 500 USDC (5 250 SEK) on the line. A coach that never sleeps. A chain that remembers.
The math you avoid
You'd never run a book with this risk profile.
Loss aversion is real. We just pointed it at your health instead of your portfolio.
A deposit contract got strangers to lose 14 lb in 16 weeks in a randomised trial. Same mechanism, twelve weeks here.
Habits take a median of 66 days to lock in, not 21. That is why the program is twelve weeks, not three.
Sitting most of the day is an independent mortality risk, even if you train in the morning.
Cardiorespiratory fitness predicts how long you live better than almost anything on a standard check-up, with no upper limit on the benefit.
Ask anyone who already won
They all say the same thing, eventually.
Verified quotes only — no invented lines, no hoaxed Steve Jobs deathbed letter.
"You only get one mind and one body, and it's got to last a lifetime."
Warren Buffett, CNBC archive 2002
"I wish I hadn't worked so hard." Second most common regret of the dying, recorded by a palliative nurse.
Bronnie Ware, The Top Five Regrets of the Dying
Collapsed from exhaustion and sleep deprivation, broke her cheekbone on her desk. Built a company about it afterwards.
Arianna Huffington, first-person account
"Trainers won't make you fit. Ultimately, you have to take responsibility. Save yourself."
Naval Ravikant
Meet Ledger
A coach that never sleeps.
Daily check-ins, logged sessions, a coach that tracks the pattern, not the excuse. It is not a person and will tell you so.
Your week, built for your energy
The plan moves with you, not against you.
Ledger builds the week around how much you actually have to give, not a template. Drag the slider — this is the same logic that runs your real plan.
The contract
Terms you can read in a minute.
500 USDC (5 250 SEK) in. 400 USDC (4 200 SEK) back if you pass, paid in three tranches. 200 USDC (2 100 SEK) bonus for the most consistent story of the cohort.
Pass means the 4+3 rule: at least four check-ins and three logged sessions a week. Nobody weighs you.
Block 1 (weeks 1–4): hit the 4+3 rule in 3 of the 4 weeks → 100 USDC (1 050 SEK).
Block 2 (weeks 5–8): same rule, 3 of 4 weeks → 100 USDC (1 050 SEK).
Block 3 (weeks 9–12): same rule plus the week 12 report read → 200 USDC (2 100 SEK).
Miss a block and only that tranche is forfeited to the program — the next block is still yours to win. Three chances to earn it back, not one all-or-nothing bet.
The 100 USDC (1 050 SEK) difference is forfeited to the program — not to another member. Nobody bets on you, nobody bets against you.
Full terms at /terms.
Transparency
You have done this before. On Polymarket.
Deposit escrow, locked against an outcome, paid out on resolution — the same pattern Polymarket and Hyperliquid already taught the market to trust. Ours just runs on fitness instead of prices.
We keep 20% (100 USDC (1 050 SEK)) of every deposit. That is the whole business, visible on-chain — no hidden margin baked into a bigger prize like HealthyWage.
Refunds paid in three tranches: you can never lose everything on one bad week.
Anonymous by default
Wallet and a handle. That's it.
No photos, no real name, no body data ever collected. Full details at /privacy.
What we know
Your public wallet and a handle you pick.
What we never ask for
Photos, before/after shots, body measurements, your real name.
Deleting it
One click, from your account settings. Gone from our systems.
Tax mode
Keep the taxman calm too.
Every swap is a taxable event in Sweden. Ledger's tax mode explains K4, the average-cost method, and how derivatives are reported — in plain language, with Skatteverket sources.
Information, not advice. Talk to your own advisor before filing. See /app/tax.
FAQ
Questions.
Is my deposit invested?
No. Your 500 USDC deposit sits in a separate wallet for the duration of the program. It is never invested, traded, or used for anything else.
What do I get back?
400 USDC back if you meet the behavioural goal: at least four check-ins and three logged workouts a week, in ten of the twelve weeks. No body measurements are ever taken.
Who judges the 200 USDC bonus?
The founder judges the bonus, based on consistency and the honesty of your story across the program — not weight, not before/after photos.
What if I fail the program?
If you don't meet the check-in and workout thresholds, your deposit is not refunded. The program measures behaviour, not results, so the bar is about showing up, not about a physical outcome.
Which chain and token does this use?
Solana, in USDC. Deposits and payouts move over Solana Pay to a dedicated program wallet.
Is Ledger a person?
No, an AI persona. It will tell you plainly that it's an AI if you ask. The team behind the program is human and reviews every application personally.
Is this investment or medical advice?
No. Proof of Sweat gives no investment advice, no price predictions, no trading tips, and no medical guidance. Talk to a doctor before starting if you're unsure about your health.
How do I join?
The program is invite-only. You apply with your wallet, email, and a short application; small cohorts are reviewed by a human. Silence means no.
Apply
Apply.
Small cohorts. Read by a human. Silence means no.