RCA Pad
VELMVellum Protocol8,420 waitlistKITEKite Ledger2,190 waitlistPLSDPalisade ID1,640 waitlistNRTLNorthlineDay 8 of 14SABLSable RailDay 5 of 14QULLQuill MarketsDay 11 of 14CDWLCinder Well6,947 waitlistHRTNHartline8,787 waitlistOBSNObsidian Rail4,416 waitlistFENLFen Clearing1,060 waitlistLUMNLumen Books5,510 waitlistRDCTRedact ID6,485 waitlistHRBNHarbor NAV6,973 waitlistQLTDQuilt1,876 waitlistNMBMNimbus Match7,864 waitlistBRASBrass4,166 waitlistSLSTSolstice Credit9,342 waitlistWLTRWillow Transfer7,031 waitlistEMBREmber Registry2,487 waitlistNQAYNorth Quay2,013 waitlistKLNSKiln4,412 waitlistGLSHGlass HouseDay 8 of 14IRNPIron PierDay 1 of 14PLFRPale FireDay 3 of 14VELMVellum Protocol8,420 waitlistKITEKite Ledger2,190 waitlistPLSDPalisade ID1,640 waitlistNRTLNorthlineDay 8 of 14SABLSable RailDay 5 of 14QULLQuill MarketsDay 11 of 14CDWLCinder Well6,947 waitlistHRTNHartline8,787 waitlistOBSNObsidian Rail4,416 waitlistFENLFen Clearing1,060 waitlistLUMNLumen Books5,510 waitlistRDCTRedact ID6,485 waitlistHRBNHarbor NAV6,973 waitlistQLTDQuilt1,876 waitlistNMBMNimbus Match7,864 waitlistBRASBrass4,166 waitlistSLSTSolstice Credit9,342 waitlistWLTRWillow Transfer7,031 waitlistEMBREmber Registry2,487 waitlistNQAYNorth Quay2,013 waitlistKLNSKiln4,412 waitlistGLSHGlass HouseDay 8 of 14IRNPIron PierDay 1 of 14PLFRPale FireDay 3 of 14
Board

GRAD

Closed
CLOSEDReinsurance records

Grain Book

Window closed. 2,107 asked while it was live. You are reading history.

The protocol pitch was declined. What remains is software against an invoice. 2,107 people still asked.

Grain Book — A permissioned netting engine for trading venues and brokers that are already licensed. It reduces what has to settle. It is not a new CCP, and it is not a collateral token.

Closed on this board. Any capital event was completed with the issuer’s own providers. RCA Pad took 0%.

Closed. The live conversation is over. The pack remains as archive.

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

Waitlist

0

Window

Closed

Heat

0/99

Inbound / wk

0asks

Asking now

0live

Named pilots

0

Redacted on the public page

Live nodes

0

Treaty book

Counsel hours

0

Melbourne · closed private round

Sentences killed

0

Before listing

Claims live

0/15

Growth

Our cut

0%

Of any proceeds

Plate Vault · 2336

GRAD

The plate

Vault. Edition 2336.

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

GRAD · Melbourne · Reinsurance records

Score

0

Desk diligence

Pilots

0

Named, redacted

Waitlist

0

Product demand

HQ

Melbourne

Licensed venues

Sells

Carrier

Carrier seat

Markets

0

Melbourne

Years

0

Founded 2024

Surfaces

0

Treaty book

Complete

0

File readiness

The wedge

Carrier seat

Grain Book is replacing the PDF slip, not the carrier.

Why the desk took it

A real job, not a ticker.

US surplus-lines posture was flagged as a counsel question. Correct.

Traction

4 named pilots (redacted).

Founded 2024, headquartered in Melbourne. 4 named pilots on file (identities redacted in public). 2,107 on the waitlist, gated — product demand, not a book built. 10 nodes or connected surfaces reported. Desk diligence score 92/100. An AIFM whose auditor has seen the dual-record. Counsel is named, even if the memo is still a draft. Unnamed counsel is how files die.

Next 12 months

Bordereau cycle running without a side spreadsheet.

An insurance DAO is not this file. They win if they are cheaper than the internal build, not cheaper than a protocol.

The brief

How a serious reader should hold this.

Someone in Melbourne already renewed a slower vendor this year. Grain Book is the conversation that happens before they do it again. Miss this cycle and you explain the next one.

The bet is narrow. A named Melbourne buyer already has budget for this invoice. Grain Book 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 dual-control drill sits on paper. Keys, title, or NAV liability sit with a named licensed party — not Grain Book. The architecture says so. We have not watched the drill live. That is the next ask, not a slogan.

From ops

We will not describe this as Reg CA-compliant, MiCA-stickered, or FCA-authorised. Issuers retain their own counsel in every relevant jurisdiction.

From the pilot

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

From counsel

This communication is not an offer. Participation mechanics do not exist on this pad. If a later reader treats the public stack as the offer, the stack was already wrong.

The window

Miss this and you read the archive.

When the heat drops, the named customer is still named — they just stop taking new calls.

Restricted markets stay dark. Named markets are live. That discipline is the scarce thing.

We do not allocate. We do not take a cut. We will not hold the window open for you.

Window

Closed

Closed. History only — not a place to buy.

Sentences killed
6
Counsel hours on file
87
Asks / week
263
Our cut
0% of proceeds

Our TAM is an invoice the customer already pays. A coin would not make it larger. It would make the licence harder.

Devon Sato, Chief executive

This company

Grain Book

Twelve Reinsurance records decks look the same. One of them has a Melbourne customer on the record.

In the same conversation

  • LCH / Eurex (incumbent CCPs)
  • Caldastone-style utilities
  • Not a DeFi clearinghouse

The bet

Why this company exists.

Grain Book is replacing the PDF slip, not the carrier.

Grain Book is replacing the PDF slip, not the carrier.

T+1 and capital rules make gross settlement expensive. Venues will buy netting as a service before they will buy a new licence.

Post-trade cost is a line on every broker P&L. A 10% cut in settlement fails is a CFO conversation.

Versus the field

The incumbent brand sells the relationship. Grain Book 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.

Named: Melbourne. Off-limits: Global public, United States. A US person hearing an offering communication is a US problem even if the company sits in Melbourne. Blocking an IP and taking a US Telegram admin is not a block.

How it works

  1. 01Members post positions they already hold
  2. 02The engine nets what the rulebook allows
  3. 03Only the residual hits the existing settlement rail
  4. 04Collateral as a token is an exclusion on this file
  5. 05Claim and premium events update the same slip the markets already signed
  6. 06A named counterparty verifies; Grain Book does not attest to its own facts.

In the same conversation as

  • LCH / Eurex (incumbent CCPs)
  • Caldastone-style utilities
  • Not a DeFi clearinghouse

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

    34%

    A counsel memo that can survive a later reader.

  • Counsel & perimeter

    27%

    Adapter work against the incumbent register, admin, or custodian.

  • Claims & campaign ops

    19%

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

  • Second market

    20%

    The remaining certifications and the second named market.

Operating week

What “in market” actually looks like.

  1. WedCounselPerimeter diffs. If the site drifted from the memo, the site moves — not the memo.
  2. FriKill switchRehearse unpublish in 24 hours. If it takes a committee, it is not a switch.
  3. TueExceptionsOvernight breaks post back into the customer’s case system. No side book.
  4. SatDarkNo creators. No threads. Restricted geos stay dark.

The wedge

Why this one, not the other one.

They sell
Carrier seat
Who pays
An AIFM whose auditor has seen the dual-record.
Unit economics
They win if they are cheaper than the internal build, not cheaper than a protocol.
Moat on file
Claim events post back into the carrier’s existing system.
Switching cost
Network effects only if a second named counterparty writes. One customer is a service firm.
Vs the comps
An insurance DAO is not this file.
Why we listed it
US surplus-lines posture was flagged as a counsel question. Correct.

Next twelve months

What has to be true.

Bordereau cycle running without a side spreadsheet.

Counsel is named, even if the memo is still a draft. Unnamed counsel is how files die.

A round, if any, sits with their providers. This pad does not take the order.

Traction

What you can verify today.

Founded 2024, headquartered in Melbourne. 4 named pilots on file (identities redacted in public). 2,107 on the waitlist, gated — product demand, not a book built. 10 nodes or connected surfaces reported. Desk diligence score 92/100. An AIFM whose auditor has seen the dual-record. Counsel is named, even if the memo is still a draft. Unnamed counsel is how files die.

  • Operating notes for Treaty book
  • No token contract listed as a public sale
  • Pilot letters on file, identities redacted
  • Melbourne is the operating centre
  • The waitlist, if any, is a product list — not a book
  • Raise, if any, closed with issuer providers

Readiness

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

  • Product95
  • Customers96
  • Legal path84
  • Tech maturity58
  • Demand51
  • Market access44

Risks

What can kill it.

The one that actually kills it

The founder wants a public book

The moment Grain Book asks this pad to allocate, sell, or complete funding, the listing ends. That is not a moral project. It is how a services firm stays a services firm.

CCP perimeter

If a regulator reads this as clearing, the licence problem is existential.

Collateral token

That ask has been refused on files like this. It should stay refused.

Member default

Who eats the loss? If the answer is ‘the protocol’, there is no protocol that can.

Incumbent freeze-out

CCPs can copy the netting logic faster than a startup can collect members.

Not a carrier

If Grain Book looks like it is taking risk, it needs a licence. The file says it does not. Keep it that way.

Single-customer gravity

If the first named buyer is also the only buyer, Grain Book is a services shop with a ledger. Ask for the second.

Ask these next

  1. 01Where do keys, title, or NAV liability sit — and is that person licensed?
  2. 02Which incumbent can copy this in a quarter, and what would they have to migrate?
  3. 03What happens if a founder later wants a public token?
  4. 04Which geography is actually locked, and which is a hope?
  5. 05Has counsel written the perimeter in a memo you can file?
  6. 06Who is the first named paying customer — not a letter of intent?

Structure

How money would actually move.

Window closed. Tombstone is theirs. Archive is ours. 0% of proceeds.

Entity
Grain Book Ltd
Path on file
Melbourne · closed private round
Posture
Window closed
Pack
Growth

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.

  • Melbournenamed
  • Global publicrestricted
  • United Statesrestricted

Team

Who runs it.

  • Devon SatoChief executive

Stack

  • Treaty book
  • Reinsurance records
  • Takedown SLA
  • Approval trail

Named with them

  • Helix Audit
  • Clearline
  • Meridian Tax

Who can decide

The technical founder is on the record as engineering. Contractors in undisclosed jurisdictions are written down as a fact, not hidden. Facts can be managed. Hiding them is how companies die in diligence.

If the first customer renews, the adapter work pays for itself. If they do not, Grain Book is a services firm with a slide. The twelve-month test is renewal, not waitlist.

Claims with evidence

Statements with evidence.

StatementEvidenceStatus
Grain Book does not sell a token to the public on this padPosture lockwithdrawn
The product is reinsurance records sold to institutionsArchitecture + customer typewithdrawn
Treaty book is the method — not a listed assetDesk snapshotwithdrawn
Retail buyers are out of scopeNamed markets lockwithdrawn
Any raise completes with the issuer’s counsel and providers — not on RCA PadFixed-fee termswithdrawn
Production date for the chain layer is not committedNo board minutewithdrawn
No public token is sold on this padEngagement terms + posture lockwithdrawn
Customers contemplated: MelbourneNamed markets on the filewithdrawn

On the record

  1. Final registerArchiveAug
  2. Close reportReportAug
  3. Tombstone copyArchiveAug

Operating log

  1. 19 Aug 10:00

    Close report. 0% of proceeds.

  2. 12 Aug 18:00

    Grain Book archived. Live claims withdrawn.

  3. 11 Aug 09:30

    Final creator pass. Residual claims pulled.

Path to now

  1. Open

    File

    Before any public sentence.

  2. Close

    Archive

    We did not take a cut.

Not a subscription

This is not a sale page.

Window closed. Tombstone is theirs. Archive is ours. 0% of proceeds. Founders who want a pack like this one apply. Readers who want the company talk to the company — not to this pad.

Launch your own How an RCAICO works

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