Skip to content
Govart
On-chain Infrastructure
Studio
Loading000
Govart

We build the web3products serious companiesput their name on.

Advisory, infrastructure, and product for companies building on-chain. Designed around ownership: built, audited, and handed over so your team runs all of it.

See the work
AdvisoryInfrastructureProductSmart contractsPaymentsSettlementCustodyTreasuryVaulting & escrowTokenizationSubscriptions

The shift is already happening.

Pick your field. The value has already moved on-chain — and the companies that own their rails are the ones capturing it.

$15T+ moved on stablecoins last year.

Card-network scale at a fraction of the cost — accept and settle in any token, on any chain, with no processor taking a cut.

Build your payment rail
cost vs a bank wire
0%
Legacy wire≈ $75 on a $1,000 transfer
On-chain≈ $0.50 on a $1,000 transfer
0M+
people hold crypto today
≈ 6.8% of the world, and doubling every few years.
$0T+
stablecoin volume, 2024
Under $1T in 2020 — now on par with Visa.
0+
countries it already reaches
No correspondent banks. Anyone with a wallet, anywhere.

What we do

Strategy

Advisory

Token design, architecture, and strategy for teams building on-chain.

Learn more
Self-hosted

Infrastructure

Self-hosted payment, settlement, and custody rails your team operates and owns.

Learn more
End-to-end

Product

On-chain products people trust with money, engineered end to end.

Learn more
Audited Solidity

Smart Contracts

Audited Solidity for payments, settlement, custody, and RWAs.

Learn more

Infrastructure you own, built to outlast the people who built it.

What we build

Six domains, each engineered in-house and handed over.

Stablecoins · EIP-681

Payments you control end to end

Authorization, capture, and settlement written into contracts you own — reversible by no one but you, and free of any processor's roadmap.

Explore
Multisig · MPC

Custody that never leaves your hands

Keys generated and held on your hardware. Policy and multi-signature enforced in code we write with you and audit line by line.

Explore
ERC-3643

Real-world assets, made legible and owned

Bring property, credit, art, and reserves on-chain with compliance and transfer rules enforced at the contract level — auditable from issuance to settlement.

Explore
On-chain voting

Governance your stakeholders can trust

Voting, treasuries, and permissions encoded transparently, so every decision and every movement of funds is legible to the people accountable for them.

Explore
Atomic finality

Settlement on your terms, not a counterparty's

Deterministic finality on the network and schedule you choose. Cross-border clearing without a clearinghouse sitting in the middle.

Explore
Yield · sweeps

Treasury that runs itself

Programmatic float, sweeps, and yield — managed on-chain, owned outright, never rate-limited by a service you don't control.

Explore

Selected work.

Anonymized at our clients’ request — every engagement is under NDA. The shape is real; nothing here is inflated.

Payments · Settlement · under NDA

Supplier payouts that clear in one transaction.

The challenge

The weekly supplier and partner run went out as hundreds of separate wires — days of float, per-wire fees, and a reconciliation headache at the end of every cycle.

What we built
  • A batch settlement contract on a network they operate
  • An payout pipeline with on-chain
  • Reconciliation that reads straight from the chain
Before / after
Bank wires · 2–5 days each
On-chain batch · seconds, one tx
Outcome

The whole run now settles as a single atomic transaction in seconds instead of days, with no intermediary in the flow — built, audited, and handed over.

T+2 → ~4s
time to final
1
transaction per run
0
intermediaries
Open the full project
Treasury · Custody · under NDA

Treasury the fund owns outright, working every hour.

The challenge

Reserves sat idle off-hours, and yield strategies lived in a managed account the team couldn't fully control or audit.

What we built
  • Policy-driven allocation across operating, reserve and yield
  • — every action against keys the fund holds
  • Isolated, opt-in yield with a full on-chain trail
Before / after
Managed account · banking hours
Owned treasury · every hour
Outcome

Float is now allocated by rules the fund sets and can read, settling any hour, with nothing custody-critical leaving their environment.

24/7
always-on
0
third parties on keys
On-chain
every action
Open the full project
RWA · Vaulting & Escrow · under NDA

Private credit, with the rules inside the contract.

The challenge

They needed to issue and transfer tokenized private credit with compliance actually enforced — not promised in a side letter.

What we built
  • A permissioned token with transfer restrictions enforced on-chain
  • Conditional escrow with and defined recovery paths
  • Issuance and redemption that are provable end to end
Before / after
Off-chain checks · trust a vendor
Contract-enforced · provable
Outcome

Only eligible holders can ever receive the asset, funds release only when conditions are met, and every step is auditable — with compliance still theirs to operate.

On-chain
transfer rules
Defined
recovery paths
End-to-end
auditable
Open the full project
Payments · Privacy · under NDA

Payments that settle on-chain — and stay confidential.

The challenge

They needed on-chain settlement without broadcasting every amount and counterparty to the world — confidentiality for the business, provability for the auditor.

What we built
  • Shielded transfer contracts with zero-knowledge proofs of validity
  • A privacy vault that holds balances confidentially, spendable only by the owner
  • Selective disclosure — prove a payment to an auditor without revealing the rest
Before / after
Public ledger · everything visible
Shielded · private and provable
Outcome

Counterparties and amounts stay private by default; validity and solvency stay provable on demand — non-custodial throughout.

Private
by default
Provable
on demand
0
trusted intermediaries
Open the full project
Wallet · PSP · Vault · Subscriptions · under NDA

One stack: a wallet that's also a PSP, a vault, and a subscription engine.

The challenge

They wanted to own the whole consumer stack — wallet, acceptance, confidential storage and subscriptions — instead of stitching four vendors who each hold a piece, and the keys.

What we built
  • A self-custodial wallet: keys on the user's device, recovery paths defined
  • A PSP rail: authorize, capture and settle, in contracts they own
  • A privacy vault for confidential balances and statements
  • Recurring on-chain billing with revocable, inspectable authorizations
Before / after
Four vendors · four lock-ins
One owned, non-custodial stack
Outcome

Every layer is theirs and non-custodial — the user holds the keys, the business holds the contracts, and no vendor sits in the middle of any of it.

4-in-1
wallet · PSP · vault · billing
0
vendor lock-in
Self-custodial
end to end
Open the full project
Identity · Privacy · Compliance · under NDA

Compliance checks without the data lake.

The challenge

They were obligated to verify users but didn't want to become a honeypot of personal data that every regulator and attacker would come for.

What we built
  • Zero-knowledge eligibility proofs — verify a claim without seeing the data behind it
  • Attestations issued once and reusable across the platform
  • Nothing personal stored on-chain or by us — the user keeps their data
Before / after
Central KYC store · a honeypot
ZK attestations · nothing to leak
Outcome

Eligibility is provable on every transaction; the personal data never leaves the user, so there is no lake to leak.

0
personal data stored
ZK
eligibility proofs
Reusable
attestations
Open the full project
Payments · FX · Settlement · under NDA

Settle across currencies without a correspondent bank.

The challenge

Moving value between currencies meant correspondent banks, pre-funded accounts, and days of settlement risk on every leg.

What we built
  • On-chain FX between regulated local stablecoins
  • swap-and-settle — the trade and the transfer are one transaction
  • Pricing and limits enforced in contracts they operate
Before / after
Correspondent banks · days, pre-funded
On-chain corridor · seconds, atomic
Outcome

Cross-currency value moves and settles atomically in seconds, with no correspondent bank holding the float in the middle.

Atomic
swap + settle
0
correspondent banks
Seconds
to final
Open the full project
Payments · Wallet · Cards · under NDA

Cards that spend self-custodial balances.

The challenge

Card programs normally pool user funds in a custodial account — the user gives up their keys just to spend with a card.

What we built
  • On-chain authorization: each card auth checks and locks funds in a contract the user controls
  • Self-custodial balances — keys stay with the user, not the program
  • Settlement to the network with a full, provable trail
Before / after
Custodial pool · program holds keys
Self-custodial · user holds keys
Outcome

Users spend with a card while keeping their keys; the program never takes custody, and every authorization is provable on-chain.

Self-custodial
balances
On-chain
authorization
0
pooled float
Open the full project

Real assets, made liquid.

From private credit to carbon — brought on-chain with ownership, yield, and provenance enforced in the contract, not a custodian.

Scroll — each asset class slides over the last

Private credit

Loans originated, serviced, and traded as tokens — the largest asset class already moving on-chain.

Treasuries & bonds

Tokenized T-bills and sovereign debt — yield that settles on-chain, around the clock.

Real estate

Title, rent, and equity — tokenized, divisible, and transferable.

Fine art

Provenance and fractional ownership of blue-chip works, enforced on-chain.

Trade finance

Invoices and receivables, financed and settled without the paperwork.

Carbon credits

Verifiable environmental credits, retired transparently on-chain.

Seven primitives, all written in-house.

Payments, settlement, custody, treasury, subscriptions, vaulting and escrow, tokenization — each built from scratch, audited, and handed over. No black boxes, no rented rails.

Open any one for the deep dive — how it works, what you own, and where teams get it wrong.

Authorization, capture, and settlement logic you control — reversible by no one but you. On-chain enforcement, off the vendor's roadmap.

Your brand
Escrow
Funded
Held
Released
$
Payer0x7a3f…9c21Beneficiary0xB4e2…1f08
Release condition

Released when the payer marks the work delivered.

Illustrative flow. The contract, conditions, and recovery paths are written for your case and handed over.

Escrow that answers only to your rules.

Funds held in a contract you own and can read — released the moment your conditions are met, and never before. Time-locks, delivery checks, multi-party approval: defined by you, enforced on-chain.

  • Conditional release, written to your spec
  • Time-locks and recovery paths you define
  • Non-custodial — no third party can touch it

Security is the whole job.

In crypto, one mistake is terminal. We build as if every line will be attacked — because it will be.

Threat-modeled first

We map how a system breaks before we decide how it works.

Audited twice

Internal review plus an independent third-party audit, with your engineers reading along.

Keys stay yours

Nothing custody-critical ever leaves your environment.

Full trail at handoff

Repository, runbook, and audit reports — every decision is provable.

What you own at handoff.

Every engagement ends with you holding the whole thing — nothing rented, nothing locked.

The repository

Every line of the system, in your version control.

A runbook

How to operate, deploy, and recover — written for your team.

Audit reports

Internal review and an independent third-party audit.

Your team, trained

We hand over knowledge, not just code.

Whatever your product needs on-chain.

Below is one example — a payment flow across any chain and token, one-off or recurring. Whatever the on-chain logic your product calls for, we build it, audit it, and hand it over.

  • One-off or recurring — any flow
  • Any token, any chain — EVM and Solana
  • Built and handed over — you own it
Your brand
Non-custodial
Amount
$
Token
Network
They send1,250 USDC

One-off or recurring · any token, any chain · non-custodial

Live FX over public APIs. Request, address and QR generated client-side — no funds move.

Settlement measured in seconds — not days.

Your brand
Ready
Batch payout · USDC
Settled
0 / 248
Value
$0
0x7a3f…9c21$4,820.00
0x1b8e…02af$12,500.00
0x9c44…7de1$2,140.50
0x5f20…b18c$38,900.00
0xe6a1…44f9$7,615.25
+243 more recipients — all in one transaction
Legacy: 248 wires · 2–5 days each0.0s

Illustrative batch. The contracts and networks are chosen and built for your case, then handed over.

A whole payout run. One transaction.

Payroll, suppliers, fund distributions — an entire batch clears atomically in seconds, not a week of wires sent one at a time. One example below.

  • Hundreds of payments, one atomic settlement
  • Final in seconds, not days
  • No intermediary, no per-wire drag

Float that works every hour you hold it.

Treasury that runs itself.

Float, reserves, and yield — allocated by rules you set, settling any hour, never rate-limited by a service you don't run. One example below.

  • Programmatic allocation and sweeps
  • Yield on idle reserves, opt-in
  • Owned outright — 24/7, non-custodial
Your brand
Treasury · 24/7
Reserves
$
Operating 25%Reserve 35%Yield 40%
Projected yield / yr$04.2% APY

Illustrative allocation. Strategies, limits, and custody are written to your spec and handed over.

What we hold to

Own your infrastructure. Don't rent it.

Custody you don't control isn't custody.

If you can't read the contract, you don't own the system.

Build it to be handed over — the engagement should end.

On-chain, or it didn't happen.

How an engagement runs.

Four phases. You're in the room for all of them, and you leave owning everything.

Brief

We pressure-test the idea

Before a line of code, we map the mechanism, the threat model, and what ownership has to look like at the end.

Build

We engineer in your environment

Product and contracts develop together, on your infrastructure, under your keys.

Audit

We prove it, line by line

Internal review plus a third-party audit, with your engineers reading along — not after the fact.

Handoff

We hand over the keys and leave

Repository, runbook, and audit transferred. No retainer, no lock-in. The engagement ends.

Built with you. Handed to you.

Tell us what you're bringing on-chain. We scope it, build it, audit it, and hand it over — keys, code, and all.

  • Non-custodial by default
  • Built, audited, and handed over
  • NDA on request
[email protected]
Intent
Stage
You
Review

What are you bringing on-chain?

Pick all that apply — advisory, infrastructure, or product.

Rough engagement size

Not sure where to start? Choose the closest — we'll help you scope the rest on the call.

Disclaimer

Govart provides software engineering, technical advisory, and infrastructure services only. We advise on technology — not on financial, investment, legal, tax, or accounting matters. Nothing on this site is advice, an offer, a solicitation, or a recommendation.

We are not a bank, broker, custodian, exchange, payment processor, money-services business, or virtual-asset service provider, and we never hold, transmit, or take custody of client or end-user funds.

KYC, AML, sanctions screening, licensing, and regulatory compliance remain the responsibility of the operator that owns and runs each deployed system. We build the controls you specify; we do not act as your compliance function. Figures and examples shown are illustrative only.

GovartOn-chain Infrastructure© 2026 Govart · All work client-owned