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Operating-record documentation for recipient review.
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Stefano Zingg
Operating-Record Diligence Package

Stefano Zingg

Digital Assets Infrastructure Operator

Founder & CEO, Union Block LLC (2017–2026). FinCEN MSB principal-operator (2022–2026). This room contains the evidence layers and documents supporting a verifiable institutional stablecoin-settlement track record across US–LATAM corridors.

$302M+
Principal volume
2,769
Transactions
250+
Counterparties
0
Client-fund losses
MSB
#31000288665858
First Review
Public packet
Resume, FinCEN registry support, wind-down narrative, and compliance-program overview.
Request Only
Evidence support
References, transaction support, wallet evidence, and internal reconciliation are shared selectively.
Tier 2
Private insights
Deeper operating analytics remain separate from the initial HR or friend-review packet.
01 — Overview

A documented, reconciled operating record.

Union Block LLC (formerly Dige Zingg LLC) operated as a distributed US–LATAM stablecoin settlement network: client-originating corridor partners routed flow into a centralized US-side operating layer for compliance, banking, liquidity-provider routing, treasury settlement, wallet controls, and reconciliation. The figures above are drawn from preserved transaction books for 2023–2026 and are supported by the evidence layers below.

Operating period
Founded 2017 (Cambridge, MA) · Delaware LLC 2020 · FinCEN MSB Nov 2022 · orderly wind-down 2025–2026.
Settlement discipline
Zero documented client-fund losses · no regulatory enforcement actions · all counterparty obligations honored.
Compliance intake
543 CIP applications reviewed · 293 counterparties onboarded through a documented BSA/AML compliance framework.
02 — Verification Layers

Evidence available on mutual interest.

The record can be verified through multiple independent layers. Status reflects how each is shared.

FinCEN MSB registry confirmation
Principal-operator registration #31000288665858 — verifiable via the public FinCEN MSB Registrant Search.
Publicly verifiable
Public block-explorer wallet activity
Wallet evidence and on-chain settlement history available to verified counterparties.
On request
Reconciled transaction records
Preserved transaction books with reconciliation detail (2023–2026).
On request
Banking & settlement records
Bank statements and settlement confirmations.
Under NDA
Counsel engagement records
Engagement confirmation from external legal counsel.
On request
Reference contacts
Counterparty and institutional references.
On request
Open private insights → Monthly volume, chain & sector mix, reconciliation & margins
03 — Documents

Package contents.

The resume and first-review documents download directly. Materials that name counterparties or carry transaction-level detail are released on request.

Résumé — BD / Sales / DeFi-DAO Primary document · PDF download HTML PDF ↓
Operating-Record Diligence · Document Register
#DocumentClassificationAccess
00
Index & cover
How to read the packet
Public PDF
01
Résumé — institutional one-page
Headline narrative & timeline
Public PDF
03
FinCEN MSB registration
#31000288665858 · public registry lookup
Verifiable PDF
04
References
Clients, counsel, counterparties, banking partners
Confidential Request
05
Transaction summary (anonymized)
By year, channel, protocol, sector
Confidential Request
07
Compliance narrative
BSA / AML framework, compliance ownership, counsel
Public PDF
08
Wind-down explanation
Banking de-risking + margin compression
Public PDF
09
Wallet evidence package
Public-wallet evidence and block-explorer review package
Request-only Request
10
Internal audit review
Internal reconciliation across books, banking, and on-chain records
Request-only Request
04 — Compliance Posture

Federal MSB framework. No enforcement actions.

Operated under a federal MSB compliance framework supported by external legal counsel and risk-review infrastructure.

BSA / AML compliance framework
KYC/KYB, beneficial-owner review, enhanced diligence, risk screening, transaction review, recordkeeping, and escalation workflows.
Blockchain-risk review
Analytics-assisted wallet and transaction review workflows for settlement-risk decisions.
External counsel
Perkins Coie LLP · Nelson Mullins.
Regulatory record
No regulatory enforcement actions.
Program / FrameworkVersionEffectiveFocus areas
BSA/AML Compliance Program
v.6
Apr 2025
Risk-based framework for customer identification, risk assessment, monitoring, recordkeeping, and escalation workflows.
Risk Mitigation Framework
v.2.3
Dec 30, 2024
Procedures for identity verification, wallet whitelisting, transaction review, and case escalation.
Code of Conduct and Ethics
v.2
Nov 01, 2024
Ethics, anti-bribery and corruption controls, data protection, and cybersecurity responsibilities.
Regulatory Compliance Framework
v.2
Sep 13, 2023
Regulatory alignment, governance structure, reporting workflow, and operating-policy coverage.
Assessment Review Framework
v.2
Sep 13, 2023
Periodic risk assessment, independent review planning, control-gap identification, and remediation tracking.
05 — Relationship Categories

Liquidity, banking, and compliance relationships available for review.

Liquidity & rails

Request-only support

Institutional liquidity, exchange, OTC, stablecoin, and payment-rail relationships documented for diligence review.

Banking partners

Request-only support

Banking relationship evidence and settlement-operations support available upon mutual interest.

Compliance & legal

Documented providers

Blockchain analytics, onboarding review, external counsel, and compliance-program support documented in the diligence packet.

06 — References & Contact

Direct line.

A diligence-grade documentation package and reference contacts are available upon mutual interest.

Email
stefanomzingg@gmail.com
Phone
+1 857 200 9823
LinkedIn
linkedin.com/in/stefanozingg
Location
Miami, FL · US citizen · Open to NY