Case Studies/Payment Infrastructure
Payment Infrastructure4 min read

PayChain connected wallet events, ledger records, and reconciliation

A payment infrastructure team needed crypto wallet events, ledger records, and review trails that could fit behind merchant-facing payment products.

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Client Snapshot
IndustryPayment Infrastructure / Processor
Primary needWallet event layer
Record modelLedger + reconciliation
ChallengeConnect payment status to wallet movement
ProductsBROsettlement
Integration surfaceREST + WebSocket
The Challenge

What they were up against.

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Wallet events had to match payment status

The product could not rely on polling or manual checks. Merchant-facing status needed to reflect observed funds, confirmations, withdrawals, and exceptions.

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Ledger records needed to be usable by operations

Support, finance, and merchant operations needed a common record for payment state, wallet movement, fees, and reconciliation.

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Risk checks had to fit the transaction flow

Screening and review workflows needed to sit close to wallet events instead of becoming a separate back-office process.

The team wanted infrastructure, not another black box

They needed wallet creation, transaction events, and ledger records that could sit under their own payment product.

The Solution

BROsettlement became the wallet event and ledger layer behind the payment product.

BROsettlement
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Wallet operations through one API surface

Wallet creation, transaction intents, and event subscriptions use a single operating surface instead of separate node and signing projects.

WebSocket event streaming

Deposit observations, confirmations, withdrawal states, and review signals can update merchant and operations dashboards without polling.

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Screening workflows connected to wallet events

AML and review decisions can be attached to transaction lifecycle events, so risky movement is visible in the same operating flow.

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Ledger records for review and reconciliation

Transactions, fees, and balance movements are recorded in a journal that finance and support teams can use for reconciliation.

Payment Product
Merchant portal · Payment API · Dashboard
BROsettlement API
REST + WebSocket · Ed25519 · RBAC
AML + Compliance Engine
OFAC · FATF · Chainalysis · Travel rule
Supported Networks
TRON · ETH · BNB · BTC · SOL · and more
Integration

How it fits into
their stack.

BroLabel integrated as an API layer between the client's product and the blockchain. Their team kept full control through RBAC — BroLabel handled MPC cryptography, multi-chain nodes, and compliance infrastructure.

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Sandbox to live flow
A test environment lets the team validate wallet, event, and ledger flows before touching real assets.
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Ed25519 auth secured from day one
Per-request asymmetric signing with IP whitelisting and nonce-based replay protection.
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Dedicated integration support
BroLabel's integration team on Slack throughout — no ticket queue, no async delays.
Results

Operational outcomes.

Events
payment status layer
deposit and withdrawal lifecycle
Ledger
operating record
transactions, fees, and balances
Audit
review trail
records ready for support and finance
AML
review workflow
screening tied to transaction events
API
wallet operations
one surface for product integration
No nodes
in-house burden
team avoids running chain infrastructure directly
We needed wallet events and ledger records our payment product could trust. BroSettlement gave us the operating layer behind merchant status, reconciliation, and review workflows.
V
VP Engineering, PayChain
Vice President of Engineering
Anonymized payment infrastructure team
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