Prices move.Yumo Yumo remembers.

Yumo Yumo connects public price series with receipt-level observations to build an inspectable price memory — and personal financial intelligence inside the application.

Signal 01 / 10
U.S. whole milk · 1 gal
2026-07
$4.31
↑ 6.6% since 2025
Source trace complete
212223242526
MarketUnited States
Effective2026-07-01
SourceBLS / FRED
Source universe
Official agenciesPublished retail seriesInstitutional datasetsReceipt observationsEffective-date history
The intelligence layer

What prices
reveal.

Explore how everyday prices change across products, markets and time. Every observation keeps the context needed to understand what changed.

Product or service
View
Time range
Display currency
Food & grocery

Whole milk · 1 gal

$4.31↑ 6.6% since 2025
U.S. whole milk price historyAnnual sourced observations from 2021 through 2026.
$4.312026-07
Price level$4.31USD · local · 2026-07
The application

Public intelligence.
Personal clarity.

The landing page establishes trust through public price data. After the application gate, the same system turns a person’s receipts into private spending memory and useful patterns.

01
Scan a receipt

Capture the document without a manual bookkeeping flow.

02
Structure the purchase

Resolve merchants, normalize items and preserve the original evidence.

03
Build financial memory

See recurring products, price changes and the rhythm of everyday spending.

Yumo Yumo season rewards and INT claim screen
Yumo Yumo monthly spending intelligence screen

Contribute data.Earn your share.

Every verified receipt strengthens the shared price memory. Yumo Yumo measures that contribution and connects it to a blockchain-backed reward record — without turning the experience into a Web3 tutorial.

From receipt to verifiable contributionNetwork active
01
Receipt verifiedPurchase data is structured and checked.
02
Contribution measuredUseful price observations strengthen the network.
03
Reward recordedA transparent record connects value to contribution.
Public proof layer · Solana+ bINT

Prices sealed.Proof preserved.

Receipt-derived price observations are grouped into epochs, reduced to a Merkle root and anchored across Solana and Arweave. The landing page shows the signal; the ledger lets anyone inspect the record.

Sealed epoch registerRepository-verified snapshot
Epoch#26
Rewritten price-observation epoch2,142 observations · 839 withdrawals · recorded in the 19 Aug 2026 landing decision.
2,142observations
Solana memoArweave manifest
Epoch#16
Public sealed epochIncluded in the verified public ledger range documented on 9 Aug 2026.
Sealedpublic status
SolanaArweave
Epoch#15
Public sealed epochPending and no-op epochs are excluded from this register.
Sealedpublic status
Merkle rootManifest
Epoch#14
Public sealed epochSource bytes remain independently verifiable after publication.
Sealedpublic status
SolanaArweave
Epoch#13
Public sealed epochOne immutable entry in the historical price-observation register.
Sealedpublic status
Merkle rootManifest
Epoch#01
Accumulated foundation epochThe first large public observation set.
8,401observations
Merkle rootIndependent verifier
The project story

A receipt should not end as a discarded slip.

OBSERVE

Start with evidence

Everyday purchases contain product, merchant, place, price and time — but most of that context disappears.

STRUCTURE

Give prices a shared language

Receipt formats, merchant names and product descriptions are resolved into a consistent price memory.

VERIFY

Keep the source attached

Public price observations retain their institution, URL and effective date instead of becoming anonymous numbers.

RETURN

Give intelligence back

The public sees a trustworthy price record. The individual sees clearer patterns inside the application.

Uğur Alacakapı, founder of Yumo Yumo
Founder

Uğur Alacakapı

Economics, protocols and everyday evidence.

Yumo Yumo was founded by Uğur Alacakapı, an international economics graduate whose work sits between monetary systems, public data and verifiable digital infrastructure.

Eight years of blockchain-protocol research and field research across Southeast Asia shape a practical thesis: everyday receipts can become durable economic evidence without turning people into bookkeepers.

International economicsEconomic systems and price behaviour.
8 yearsBlockchain and protocol research.
Southeast AsiaField research behind real product decisions.
Delaware, USYumo Yumo Inc. company base.
Selected writing Paranın Yetmediği Bir EkonomiAn economic essay on value, scarcity and the limits of money. ↗
Startup support & ecosystem
aws
Amazon Web Services$1,000 in cloud credits supporting early infrastructure work.
MongoDB
Startup ecosystemShown as a program relationship, not as Yumo Yumo’s current database architecture or an endorsement.