Board

HAZ4

Screened
SCREENEDPrime brokerage ops

Hazel Stack

Certification is in motion. After it lands, access is the scarce thing — not price.

Marcus Cho will not run a public sale on this pad. The listing exists because of that sentence.

Hazel Stack — Accounting and proof layers for vaults that already hold assets for known clients. zk or otherwise, the point is a statement a counterparty can verify — not a public yield product.

Screened, not yet in sprint. Treat every number as provisional. Calendar access is not automatic.

Most Prime brokerage ops applications this quarter were declined. You are looking at one that was not.

Diligence, not a prospectus. RCA Pad does not allocate, take orders, or close funding. If this company raises, it raises with its own counsel.

Stage

upcoming

Window

0days

Heat

0/99

Inbound / wk

0asks

Asking now

0live

Named pilots

0

Redacted on the public page

Live nodes

0

Prime adapters

Counsel hours

0

Not offering — locked

Sentences killed

0

Before listing

Claims live

0/5

Sprint

Our cut

0%

Of any proceeds

Plate Ledger · 7707

HAZ4

The plate

Ledger. Edition 7707.

A unique plate for Hazel Stack. Geometry, orbit, and edition belong to this company — no other listing on the board shares it.

HAZ4 · Luxembourg · Prime brokerage ops

Score

0

Desk diligence

Pilots

0

Named, redacted

Stage

upcoming

upcoming

HQ

Luxembourg

Asset managers

Sells

Fund

Fund seat

Markets

0

Luxembourg

Years

0

Founded 2025

Surfaces

0

Prime adapters

Complete

0

File readiness

The wedge

Fund seat

Hazel Stack sells the statement, not the vault. Anyone can launch a vault.

Why the desk took it

Early — still a question.

No APY on any surface we could find.

Traction

One named pilot (redacted).

Founded 2025, headquartered in Luxembourg. One named pilot on file (redacted in public). Desk diligence score 60/100. A qualified custodian reconciling against this book. No public APY, no public book, no ‘how to buy’ on any surface we could find.

Next 12 months

Still no yield marketed to the public.

Custodian reporting is a PDF. This is a file a counterparty verifies. Bps on a job that already has a budget line. A public coin would not make the invoice larger.

The brief

How a serious reader should hold this.

In Luxembourg, the person who signs the monthly pack already has a vendor. Hazel Stack is not asking them to believe in a token. It is asking them to move one job — the one that currently lives in a spreadsheet, a fax, or a person who is about to retire — onto a record that can be shown to counsel. The queue to read that record is already not empty.

The bet is narrow. A named Luxembourg buyer already has budget for this invoice. Hazel Stack wins if it is cheaper than the internal build and cleaner than the protocol pitch. It loses if a founder later wants a public book. The window is the time you have to decide which it is.

A sentence went public and came down in under an hour. Marcus Cho treated the kill as an operating skill, not a PR event. Files that cannot do this do not stay listed.

From counsel

US persons are outside the audience. A form that asks “are you accredited?” without verification is not an exemption.

From the pilot

The legal source of truth stays with the incumbent register, admin, or custodian. Hazel Stack does not attest to its own facts.

From the founder

Fixed fee. Deposit to start. 0% of proceeds. Token-only pay is declined. Percentage of raise is declined.

The window

Miss this and you read the archive.

Waiting for a proposed US rule is how you miss a Luxembourg buyer who already has budget.

Switching cost is the auditor conversation. Once it happens, you are late.

Open the diligence or watch it close. There is not a third option that still counts as early.

Window remaining

0days

When this window closes, the campaign is archive.

Sentences killed
5
Counsel hours on file
8
Asks / week
7
Our cut
0% of proceeds

The decline pile is a compliment. It means the screen still means something.

Marcus Cho, Chief executive

This company

Hazel Stack

Open-source looks free until the auditor asks who attests. Hazel Stack has an answer.

In the same conversation

  • Fund admins
  • Custodian reporting
  • Public ‘vault tokens’ (the thing this is not)

The bet

Why this company exists.

Hazel Stack sells the statement, not the vault. Anyone can launch a vault.

Hazel Stack sells the statement, not the vault. Anyone can launch a vault.

Allocators asked for proof after 2022. Labs answered with demos. The first vault accounting that an auditor will sign is a business.

Middle-office spend at alternative managers is a budget that survived the last cycle.

Versus the field

The incumbent brand sells the relationship. Hazel Stack sells the job the brand will not staff. A protocol pitch is the thing this company has already refused. Open-source looks free until the auditor asks who attests.

Luxembourg being the city does not make local retail a default audience. Communications capable of inducing investment activity still have a promotions problem.

How it works

  1. 01Positions are accounted in a book the manager already runs
  2. 02A proof or extract is produced for a named counterparty
  3. 03Yield is not marketed to the public on this pad
  4. 04zk, if present, is a method — not a ticker
  5. 05A proof or extract is produced for a named counterparty only
  6. 06Retail and unnamed geographies are structurally off the form, not only in the footer.

In the same conversation as

  • Fund admins
  • Custodian reporting
  • Public ‘vault tokens’ (the thing this is not)

If they raise

Where the money would actually go.

Not a token float. A budget against work. RCA Pad still takes 0% of proceeds.

  • Named operators

    39%

    Dual-control drills, key ceremonies, and the person who owns them.

  • Certifications & adapters

    21%

    A counsel memo that can survive a later reader.

  • Control environment

    22%

    Hiring the operator who already does this job at a licensed firm.

  • Second market

    18%

    The remaining certifications and the second named market.

Operating week

What “in market” actually looks like.

  1. SatDarkNo creators. No threads. Restricted geos stay dark.
  2. WedCounselPerimeter diffs. If the site drifted from the memo, the site moves — not the memo.
  3. MonClaimsEvery public sentence checked against the register. Anything extra is unpublished.
  4. ThuCustomerNamed pilot (redacted) sees the same record the auditor saw.

The wedge

Why this one, not the other one.

They sell
Fund seat
Who pays
A qualified custodian reconciling against this book.
Unit economics
Bps on a job that already has a budget line. A public coin would not make the invoice larger.
Moat on file
Auditor engagement letter — not a tweet.
Switching cost
Once the record is the record, the incumbent copy has to migrate history. That is the year.
Vs the comps
Custodian reporting is a PDF. This is a file a counterparty verifies.
Why we listed it
No APY on any surface we could find.

Next twelve months

What has to be true.

Still no yield marketed to the public.

No public APY, no public book, no ‘how to buy’ on any surface we could find.

Growth money would extend the record to a second geography, still permissioned.

Traction

What you can verify today.

Founded 2025, headquartered in Luxembourg. One named pilot on file (redacted in public). Desk diligence score 60/100. A qualified custodian reconciling against this book. No public APY, no public book, no ‘how to buy’ on any surface we could find.

  • Architecture paper — no production customer on the public file
  • No token contract listed as a public sale
  • Named founder; customer still a conversation
  • Luxembourg is the operating centre
  • The waitlist, if any, is a product list — not a book
  • RCA Pad does not take a cut of proceeds

Readiness

Six things a serious buyer asks. 100 is “ready to take to counsel and a customer.”

  • Product23
  • Customers40
  • Legal path62
  • Tech maturity28
  • Demand10
  • Market access68

Risks

What can kill it.

The one that actually kills it

The named customer is a letter of intent

Pilots that cannot be named, even redacted, are theatre. One paying seat that an auditor has seen is worth more than a waitlist of a short list.

Yield product

If the landing page is APY, this is a different, usually unlicensed, business.

Proof theatre

A zk circuit of a fake book is still a fake book.

Custodian

Who holds the keys? If it is the startup, that is custody.

Audit

No auditor, no statement. Demo is not diligence.

Proof theatre

A zk circuit of a fake book is still a fake book. Hazel Stack has to prove the real one.

Token relapse

A later round that wants a public token puts Hazel Stack in a different perimeter. The file treats that as a hard stop.

Ask these next

  1. 01If RCA Pad disappeared tomorrow, could the customer still run the job?
  2. 02Is the waitlist demand for a product, or a queue for a coin?
  3. 03Who can unpublish a public sentence in 24 hours, by name?
  4. 04Which geography is actually locked, and which is a hope?
  5. 05Where do keys, title, or NAV liability sit — and is that person licensed?
  6. 06What happens if a founder later wants a public token?

Structure

How money would actually move.

Too early to talk about a round on this pad. Screen first. A path has to be named by counsel before anyone should wire.

Entity
Hazel Stack S.à r.l.
Path on file
Not offering — locked
Posture
Private only
Pack
Sprint

Where they can operate

Named vs off-limits.

Named markets are where a sentence is allowed. Restricted is where it is not. This is not a worldwide offering.

  • Luxembourgnamed
  • EEA professionalnamed
  • Public residual claimsrestricted
  • United Statesrestricted

Team

Who runs it.

  • Marcus ChoChief executive

Stack

  • Prime adapters
  • Prime brokerage ops
  • Disclosure templates
  • Audit log

Named with them

  • Meridian Tax

Who can decide

Marcus Cho came in named. The team is not a handle. Hazel Stack S.à r.l. exists, founded 2025, headquartered in Luxembourg. Anonymity would have been an automatic decline.

Year two is a second named market and the remaining certifications — still permissioned. It is not a public book. A public book would be a different company.

Claims with evidence

Statements with evidence.

StatementEvidenceStatus
Hazel Stack does not sell a token to the public on this padPosture locklive
The product is prime brokerage ops sold to institutionsArchitecture + customer typedraft
Prime adapters is the method — not a listed assetPaper onlydraft
Retail buyers are out of scopeNamed markets locklive
Any raise completes with the issuer’s counsel and providers — not on RCA PadFixed-fee termslive
Production date for the chain layer is not committedNo board minutedraft
No public token is sold on this padEngagement terms + posture locklive
Customers contemplated: Luxembourg, EEA professionalNamed markets on the filedraft

On the record

  1. Application APP-4374ScreenSep
  2. Counsel questionPathSep

Operating log

  1. 05 Sep 13:00

    Application scored. Hazel Stack is not a calendar slot.

  2. 10 Sep 10:12

    Counsel question sent. Name a path or lock not-offering.

Path to now

  1. Now

    Screen

    Calendar is never automatic.

  2. Next

    Counsel or close

    A named path, or a locked not-offering.

Not a subscription

This is not a sale page.

Too early to talk about a round on this pad. Screen first. A path has to be named by counsel before anyone should wire. Founders who want a pack like this one apply. Readers who want the company talk to the company — not to this pad.