Picture this

Who it is for

Chidi runs a barbershop. Each cut gives the customer a cNFT receipt with the date and barber, and the tenth stamp unlocks a free trim. It costs Chidi less than a cent per receipt.

Two ways to own it

What you get

Base$109

$27 deposit to reserve

Counter QR, cNFT receipt mint, stamp card, reward redemption.

You choose: accent color
You choose: stamp count
You choose: reward

Customfrom $800

Built around you

Reshape it entirely: new features, your flows, your brand end to end, integrations you need. We scope it with you.

Everything in Base
Custom features and design
Priority build

Why it is new

What exists today, and what this does differently

What is new

cNFT loyalty pilots exist (some POAP style drops), but receipt as stamp for small shops at the counter was not found as a ready product.

Closest things out there

Solana Pay loyalty pilots; Drip and POAP style cNFT drops.

Checked with web searches in October 2026. A search is not proof that nothing similar exists, and the market moves fast, so we recheck before every build.

What it unlocks

The human in it

Your regulars get proof they showed up.

The Regatta Board

Races it can enter

grant · Solana Foundation · rolling

Solana Foundation Grants

rolling

Official page ↗

Ecosystem program for shipped apps; check current terms.

Their rule on existing code: Existing projects OK

What you own

The whole app, not a starter kit.

The complete Stamp Receipts shop app: every paid sale mints the customer a compressed NFT receipt on Solana that doubles as a loyalty stamp, with a stamp card designer, counter QR, regulars list and plans built in.

Base price · $109

The user app, complete

Every buyer gets the same finished app. Basic branding and copy changes come through a quick form.

Three step onboardingHome

Shown once: each cut a stamp, nobody can lose or fake it, prices and numbers stay offchain.

Today at the shop and next actionHome

Cuts today, receipts, rewards redeemed, who is due and one clear next step.

Per barber statsHome

Receipts and return rate per barber. Gated behind the Shop plan.

Counter QR per saleCounter

A fresh QR for every paid sale that works once and expires in seconds; reused screenshots are refused.

Compressed NFT receipt mintCounter

Date, shop and barber on Solana for under a naira, with a queue and retry for busy hours.

Phone number custodyCounter

Customers without a wallet get stamps held under their number, claimable later. Gated behind the Shop plan.

Staff tap redemptionCounter

Receipts are counted at the target and a barber taps to redeem. Never automatic.

Stamp card designerCard

Six, eight or ten stamps, the reward and the price, with give back and simulated repeat visits.

Street cardCard

Shops on one street share a card. Needs the Street plan.

Monday list nudgesRegulars

Who is due from real receipts, a weekly cap, opt outs respected, language and quiet hours. Gated behind the Shop plan.

Regulars and claim linksRegulars

Every regular's stamps, and claim links that move held receipts to a new wallet.

Receipts ledgerReceipts

Every receipt with its hash and status, what is onchain and what never is, tree size and fees.

Plans and shop settingsShop

Plans from the owner paywall via USDC checkout, usage meter, staff, message settings and share card.

Open the full app demo

Add-on

Owner console

Your admin side: revenue, paywall editor, users, rules and the agent log.

Revenue and paywall editorRevenue

MRR by plan, incoming USDC payments, payouts, payment methods and live tier and gate editing.

Rules, agent log and roadmapRules

QR lifetime, single use codes, retry queue, custody, fee sponsoring, tree size, nudge cap; plus the Agent log and priced Roadmap.

Top-up

Growth and referrals

Referral and growth mechanics, switched on when you are ready to grow.

Growth loops and cohortsGrowth

Street days, receipts as ads, share card, shop to shop referrals and retention cohorts.

The money path, built in

How it earns for you

Customers never pay for a stamp. Shops pay a monthly plan in USDC, and markets pay one Street plan for every stall on the card.

Chair$9 a monthOne shop, one stamp card, up to 500 receipts a month

Shop$29 a monthSeveral barbers with per barber stats, Monday list nudges, phone number stamps

Street$99 a monthA market or a street of shops sharing one card across stalls

Compressed mints cost a fraction of a cent each and can be sponsored by the owner. A one time Merkle tree setup per shop depends on tree size.

Prices are yours to set. Illustrative, not a promise of income.

Growth loops, built in

How it spreads

The receipt is the ad: every receipt carries the shop's name into a customer's wallet
Street days that sign up a whole market row at once
Share card after a reward: my barber gives me a receipt I actually keep
Shop to shop referrals worth a free month of the paid plan

Roadmap · build the next phase with us

Where it goes next

v1 included

The full shop app

Counter QR per sale and cNFT receipt mint
Stamp card designer and staff tap redemption
Phone number custody and claim links
Monday list, receipts ledger and plans

Included

Street cards and till plugins

One card shared across a street or market
Plugins for common POS tills
WhatsApp stamps for phone number customers
Warranty and proof of purchase receipts

Add-on from $400

Regulars passport and partner offers

A portable history customers carry between shops
Brands sponsor rewards at partner shops
Anonymous shop insights across a city
Multi currency pricing for other markets

Add-on from $900

For investors and grant reviewers

The pitch, ready

A loyalty stamp customers cannot lose and nobody can fake: every paid sale mints a receipt on Solana for under a cent.

Problem: Small shops run on regulars, but paper stamp cards get washed, lost or faked in biro, and point of sale loyalty tools are built for chains.

Solution: A per sale QR that works once mints a compressed NFT receipt with date, shop and barber. Receipts are the stamps; a staff tap redeems the reward. Prices and phone numbers stay in the till.

Why now: Compressed NFTs on Solana make a receipt cost a fraction of a cent, embedded wallets remove setup, and phone number custody covers customers with no wallet at all.

Market: Barbers, salons, cafes, food stalls and market rows in fast growing cities, starting with Lagos, Accra and Nairobi.

The ask: Pilot streets in Yaba and Balogun, and ecosystem grant funding such as Solana Foundation grants.

Funding is never guaranteed. Check each program's rules.

For hackathons and demo days

Your 2 minute demo

Home: meet Chidi, 38, at Fresh Line Cuts in Yaba on a Saturday at 5:20 PM.
Counter: charge a haircut, Tunde scans the one time QR and a receipt lands in his wallet.
Counter: try the screenshot from a group chat, it is refused; then Mrs. Adaeze gets a stamp by phone number.
Card: set the card to 6 stamps, watch the give back change, then redeem Tunde's free trim with a staff tap.
Regulars: unlock the Shop plan through USDC checkout and send the Monday nudges.
Owner Rules and Agent: turn off single use codes, show the duplicate it allows, and read how the helper adapted.
Owner Revenue: change the Shop price in the paywall editor and preview the shop Plans sheet.
Owner Growth and Roadmap: run a street day, then request v2 street cards.

Many hackathons require code written at the event. See the Regatta Boardfor each race's rule.

Make it entirely yours

Custom work from $800: your own reward types, a plugin for your till, extra languages, or a branded deployment for a market association. Scoped on a call.

Custom from $800

BLUEPRINT

Why it matters and how it really works

The need

Small shops run on regulars, but paper stamp cards get lost, washed or faked, and point of sale loyalty apps are built for chains. A barber or a food stall needs a stamp that customers cannot lose and nobody can forge, for almost no cost per sale.

What exists and what is new

Pieces exist. Solana Pay has run loyalty pilots with merchants, and Drip and POAP style drops have shown compressed NFTs can be handed out cheaply at scale. Research did not find a ready product that turns each in person sale at a small shop counter into a receipt that is also the loyalty stamp. That packaging is the new part; the technology underneath is proven and borrowed.

The data it runs on

Sale events from the shop's till (amount kept offchain), one compressed NFT per sale with date, shop and barber, per sale one time QR codes, phone number custody records for customers without wallets, and redemption events.

1.The mission

Give every small shop the loyalty tools a chain has, and give every regular proof they showed up.

2.Why people can't resist it

The stamp press The receipt lands with a wax seal animation at the counter. Customers show it to the next person in the chair.

Cannot be lost Your stamps live in your wallet or under your number, not in your jeans pocket.

Monday list Receipts tell the owner who is due for a visit, and one tap invites them back.

3.How it works for real

Tree: The shop creates a Bubblegum Merkle tree once for its receipts. The size sets a one time cost; each mint after that is a fraction of a cent.

Sale and QR: When a sale is paid, the counter app shows a QR code tied to that sale. It expires after 90 seconds and can be claimed once.

Mint: A Metaplex Bubblegum compressed NFT is minted to the customer's wallet (Phantom, Solflare or an embedded wallet) with date, shop and barber attributes.

No wallet: Customers can claim by phone number. The shop's app holds the receipt in custody and transfers it when they make a wallet.

Redeem: At the stamp target, the counter reads the customer's receipts via the DAS API, checks count and shop, and records a redemption.

4.Cost per use and pricing

Compressed mints cost a small fraction of a US cent each in network fees, plus a one time tree setup that depends on tree size. A shop with 2,000 receipts a quarter spends a few dollars on network fees; RPC and SMS are the bigger costs.

Chair $9 a month

One shop, one stamp card, up to 500 receipts a month.

Shop $29 a month

Several staff, Monday list, SMS custody for customers without wallets.

Street $99 a month

A market or a cluster of shops sharing one card across stalls.

5.Growth loop

Every receipt carries the shop's name to the customer's wallet, and the share card spreads in group chats. Shops on the same street join so a card works across them.

6.Risks and guardrails

QR reuse: Static codes get photographed. Codes are per sale, short lived and single use.

RPC limits: Busy hours can stall mints. Queue with retry and show 'stamp pending' at once.

Custody: Phone number receipts are held by the app until claimed. Say so plainly and make claiming easy.

Privacy: Receipts are public. Put no price, name or phone number onchain.

7.Build order

Counter app with per sale QR
Merkle tree setup and Bubblegum mint
Stamp card view for customers
Phone number custody and claim
Redemption check at the counter
Monday list and nudges

8.Where this is going

Now
Barbers, salons, cafes and stalls with one stamp card each.
Next
Shared cards across a street or market, and receipts that also serve as warranty or proof of purchase.
Later
Customers carry a portable history of the places they support, and shops can recognize regulars from anywhere.

Costs and tools are estimates at the time of writing. General information only, not legal or financial advice.

OWNER PLAYBOOK

Own it, then chart your voyage

Nine routes from one vessel. Tap a port to open its chart.

Why own Stamp Receipts

Stamp Receipts: Every in person sale mints a compressed NFT receipt that doubles as a loyalty stamp. Using someone else's version means their rules, their brand and their revenue. Owning Stamp Receipts means it is deployed under your wallet, carries your name, and every customer, partner and result builds your track record instead of theirs.

What’s stopping you?

“I am not technical.”

Stamp Receipts arrives deployed with a guide. Running it is settings and sharing links, not code. If you get stuck, we help you ship it.

“What if nobody uses it?”

Start with ten people you already know. The first move below takes under an hour and tells you fast whether people care.

“I do not have time.”

Each step is sized in minutes. Most owners spend an hour a week, and the app does the repetitive part.

“Will it make me money?”

Nothing is guaranteed. The playbook gives you a clear path and honest numbers, and you decide how far to take it.

The million-dollar ladder

Charge the people who get the most value from Stamp Receipts: a monthly plan for groups or teams, plus setup fees for anyone who wants it done for them.

$100

$1,450

$11,700

$78,000

First harbour

5 customers

$20 a month

Steady trade

50 customers

$29 a month

Known name

300 customers