uWu Protocol
Open app →
Attestation layer · v0.9.2 devnet

Proof the money
actually moved.

A decentralized verification layer that transforms any fiat payment into a cryptographically signed on-chain primitive. Plug UPI, Pix, or ACH directly into your protocol logic — no custodian, no middleman, no trust required.

Join the waitlistHow it worksNo custody. No screenshots.
· SETTLEMENT WITNESSED · ORACLE ATTESTATION · ESCROW RELEASED · FIAT CONFIRMED · PROOF INCLUDED · SETTLEMENT WITNESSED ·LOT · ·····SEAL · 07————————v0.9.2
attested settlement
₹ —
≈ — sol
Settlement, witnessedOracle attestation v2No custody · no screenshotsEscrow releases on proofBuilt for any protocol that needs verified fiatNeutral · permissionless · verifiableTwelve currencies liveOne on-chain callSettlement, witnessedOracle attestation v2No custody · no screenshotsEscrow releases on proofBuilt for any protocol that needs verified fiatNeutral · permissionless · verifiableTwelve currencies liveOne on-chain call
§ 01 — Mechanism

Three moves,
one proof.

Every cross-rail trade gets compressed into a single verifiable attestation. No chat logs, no payment screenshots, no trust me bro.

i

Lock the stablecoin

Seller locks USDC, USDT or EURC into a trustless escrow contract. No counterparty risk, no middleman holding the bag.

ESCROW.LOCK() → 0x4a…f2
ii

Witness the fiat

Buyer sends the fiat through their normal rails — UPI, Pix, SEPA, ACH. A decentralized oracle network watches and signs the proof.

PROOF.SIGNED × 7/9 validators
iii

Release, verified

One on-chain call submits the attestation. Escrow unlocks automatically to the buyer. End-to-end in under ninety seconds.

ESCROW.RELEASE() ✓ settled
§ 02 — Explorer

Every attestation,
public by default.

Live on-chain trades from the uWu escrow program on Solana Devnet. Click any row to inspect on the block explorer.

devnet · live
trade id · seller · amount · status0 trades
Fetching on-chain data…
total volume (SOL)
0 SOL
≈ $0 at current rate
settlements on-chain
0
since program deploy
network
Devnet
Solana · Agave 3.1

Demo

See it in action.

Private beta · Q2 2026

Get on the early bench.

We're onboarding DeFi protocols, payment builders, and developers first. Tell us who you are and we'll route you to the right cohort.

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§ 03 — Questions

The short answers.

Longer ones live in the whitepaper. If yours isn't here, drop us a line — we'll publish the good ones.

A permissionless validator set. Anyone can stake collateral and run a node; attestations require a supermajority signature, and malicious signers get slashed. The protocol itself is neutral — we don't run validators.

Screenshots are trivially faked and require a human dispute loop. Our oracle reads directly from bank APIs, UPI webhooks, and payment-network feeds where available, then produces a signed cryptographic proof. No humans in the release path.

India (UPI, IMPS, NEFT), Brazil (Pix), Eurozone (SEPA Instant), Nigeria (NIBSS), Mexico (SPEI), Philippines (InstaPay), Kenya (M-Pesa). Seven more are in private testing.

None. Stablecoins live in audited escrow contracts; the oracle can only release to the pre-committed recipient address specified at trade creation. There is no admin key and no upgrade path that routes funds.

10 basis points on the stablecoin leg. No fees on the fiat side. Validator rewards come out of the protocol fee; there is no separate gas surcharge on the attestation call.