Private Source-of-Wealth records for crypto holders

Keys pass the assets. The record passes the wealth.

DataPatrimony reconstructs the Source of Wealth behind your crypto, seals the record in a vault only you can open, keeps it current for as long as you live, and hands it to your spouse, your children or your notary when the time comes.

Request a private consultation

Directly, or through your notary.

A ChainComply service Built by people who ran compliance inside banks

Sealed record

Source of Wealth,
2013 to today

Case reference
DP-7Q4K-2291
Prepared for
Aurelian (code name)
Successors named
2
Trigger
Defined by the holder
Last refreshed
12 March 2026
Key
Holder · copy with notary
Fingerprint
3f9a 0c21 9be4 51d7 · · · 08c3 e61a 77be

Opens only with the holder's key.

Open the record Illustration

If you hold the crypto

Put the record in order while you are the one who knows it.

One engagement reconstructs the history, seals it and keeps it current. You decide who receives it, and when.

See what is inside the record

If someone in your family holds it

Help them leave you a record, not a puzzle.

How to raise it with a spouse or parent, what stays private to them, and what you receive if they go ahead.

For families

Why a record

Every bank asks the same question: where did this wealth come from?

Most holders have already arranged the keys, through an inheritance service, or a custodian that holds them. Few have arranged the answer banks call your Source of Wealth. A bank that receives the proceeds of crypto is required by law to establish it, and it asks your heirs exactly what it would have asked you, without the one person who knows the answer.

The history fades

Exchanges close, API access expires, emails are deleted. Every year the story behind your holdings is harder to prove, even for you.

The heirs do not know

A spouse or child rarely knows which exchanges were used, what was bought when, or where the first euro came from.

Rebuilding it later is the hardest way

Reconstructing years of history from fragments, without you, means long delays at the bank and expensive specialists for your family.

The service

Four things, done once properly, then kept.

Reconstruct

A dedicated case lead rebuilds the full history across every wallet and exchange and traces each position to its origin. Any provider, any chain, exchanges that no longer exist. You never operate the tools.

Seal

The finished record is encrypted and the key is yours. ChainComply keeps the encrypted file so it can be refreshed and handed over, and cannot open it without you.

Keep current

Every year the record is refreshed and your wallets are re-screened. Add new wallets and exchanges as you go, with a yearly or quarterly review call.

Hand over

You name your successors and decide what they receive. When the time comes the record is brought up to date and delivered to their bank or notary.

And while you are here

The same record becomes a Source-of-Wealth claim whenever a bank asks.

  • ChainComply answers your bank. Questions from the compliance team come to the case desk, not to you.

  • A bank introduction for holdings above EUR 1M, to a bank that works with the ChainComply system.

  • Your tax adviser, or DataPatrimony's. ChainComply works alongside your adviser so the claim and your tax documentation tell one story.

The handover

Written today. Opened only when it is needed.

The handover is set up at the start, not improvised at the end. Nothing reaches your successors before the moment you define, and nothing about the protocol needs to be held by ChainComply.

The lifetime option

The record is kept current for your lifetime, and the keys may be stored in a bank safe for your successors.

  1. Today

    You decide who, what and when.

    You name one or more successors and define the trigger: a death, an incapacity or a date. The case reference, the key and a handover letter are lodged where you choose, with your notary or in a bank safe.

  2. Every year

    The record stays true.

    It is refreshed and your wallets are re-screened, so the file your family receives describes the wealth as it is, not as it was years ago.

  3. When the time comes

    Your family is not left to explain.

    Your successor or notary brings the reference and the key. The record is reopened, refreshed to that date and delivered to their bank or notary, and the case desk answers their bank as it would have answered yours.

Privacy

Private by design.

No file leaves ChainComply unencrypted; no identity sits next to a wallet address in its systems.

Who you are

  • Name and contact details
  • Engagement documents

Stored apart

What you hold

  • Addresses and exchange histories
  • The reconstruction, under a case reference

The sealed record

Encrypted at closure. The key is yours. Reopened only when you send it back over a secure channel.

ChainComply never holds your assets

The work is done from public addresses and exchange records. ChainComply never asks for a seed phrase or a private key. The only key involved is the key to your record.

Identity and chain data apart

Who you are and what you hold are stored in separate places, as standard, for every client.

Your key, not ChainComply's

If you hold the key alone, no one, including the company, can reconstruct your file without you.

Full anonymity, if you prefer

A code name and no email. Work with ChainComply directly under a pseudonym, or through your notary or lawyer.

For spouses and children

If someone you love holds crypto, one day you may be asked to explain it.

How to raise it with them, what stays private to them, and what you receive if they go ahead.

For families

For notaries

Crypto in the estate, with its record already in the file.

A reviewed Source-of-Wealth record, a handover letter written for your office, and the reference and key lodged with you alongside the will.

For notaries

Engagement

One engagement. Then a quiet annual retainer.

DataPatrimony is a professional engagement, not a software subscription. The first year covers the reconstruction, the sealed record and the handover protocol; after that, a retainer keeps the record current.

How to start

  1. Consultation

    With the case lead who would run your case. What exists is mapped.

  2. Scope

    A written scope and the engagement terms, before any work starts.

  3. Engagement

    Signed by you, under a code name, or through your notary.

  4. Intake

    A secure upload room opens and the reconstruction begins.

DataPatrimony

First year

EUR 4,900 + VAT

then EUR 1,900 a year, cancellable at any time

  • A dedicated case lead, end to end
  • The sealed vault, with identity and chain data stored apart
  • Annual refresh and wallet re-screening
  • A yearly or quarterly review call
  • The successor handover protocol
  • The full anonymity option
  • ChainComply answers your bank; bank introduction above EUR 1M
  • Unlimited wallets, exchange accounts and transactions
  • No add-ons: everything is included
Request a private consultation

Records in nine languages, consultations in seven. Nothing is uploaded and nothing is paid at the consultation.

Who is behind it

A ChainComply service.

ChainComply is a Belgian company founded by people who ran compliance inside banks, and who watched sound crypto wealth turned away for want of a file the bank could review. Its system is used by private banks, tax lawyers and crypto-asset service providers to reconstruct the origin of crypto wealth. DataPatrimony is its most private form.

  • Private banks
  • Tax lawyers
  • Crypto-asset providers

EUR 1.4 billion+ in crypto wealth documented on the ChainComply platform. Portfolios above EUR 10M are not unusual for the company.

Questions

What people ask first.

Do you hold my crypto or my keys?

No. ChainComply works from public addresses and exchange records, and never asks for a seed phrase or a private key. The only key involved is the key to your record, and it is yours.

Can my family start this without me?

Yes. Whoever holds read-only API access to your exchange accounts and all your public wallet addresses can start the reconstruction. Neither lets anyone move funds, and ChainComply never asks for a seed phrase or a private key.

Will a bank accept the record?

The decision is always the bank's. What the bank receives is a file it can review without you in the room, and a case desk that answers its questions.

Is this tax advice?

No. If you need a tax adviser as well, ChainComply works alongside yours so the record and your tax documentation tell one story. If you do not have one, it brings in a partner adviser who is an expert in its tool.

My keys are already arranged. Why would I need this?

Inheritance services such as Casa, Unchained or Nunchuk make sure your heirs can reach the assets, and a custodian holds them for you. Neither shows a bank your Source of Wealth: how the wealth was formed. That record is what DataPatrimony keeps.

What if I would rather you did not know who I am?

Choose the anonymity option: a code name and no email, directly or through your notary or lawyer. Your bank still identifies you. ChainComply does not need to.

Put the record in order while you are the one who knows it.

Request a private consultation

Directly, or through your notary. Nothing is uploaded and nothing is paid at the consultation.