Your crypto money has a history. Prove it.
Sextant reconstructs it from your export: where your money came from, what it produced, what it is worth today. Priced to the minute, reviewed by your consultant, ready to hand over — or to keep for yourself.
Your file never leaves your browser.
Your platform shows you a balance. Sextant gives you the whole history back.
Where your money came from
Every euro paid in from your bank, every crypto that arrived from elsewhere, dated and priced.
What it produced
Gains, losses, fees and conversions, in euros, at the price of each minute.
What it was worth on a date
Your real holdings, valued on the day you choose: today, a separation, an estate.
What is proven, and what is not
What the file establishes, what your documents declare, what remains without a source. Nothing is hidden, nothing is invented.
Start for free. Go as far as proof when you need it.
The Check-up
Free · 2 minDrop in your export: you immediately see what it contains — period, transactions, conversions, fees — and the lines it cannot read. Everything happens in your browser; nothing is sent.
- → No account, no email
- → The starting point of every file
Source of Funds Statement · €49
Where the money in your account came from, dated and in figures, as a PDF. Produced by our engine, checked before it is sent. Paid on delivery.
The Source of Funds File
€149 · paid afterwardsYour entire history, reconstructed line by line: your question and its answer, where the money came from, what it produced, what it is worth, what is proven. A written, dated document, ready to hand over. Reviewed by your consultant, delivered as a PDF on your tracking page. You pay on delivery.
- → Your consultant after delivery, with no time limit
- → Nothing is charged if your file does not allow us to draw up the File
A bank, a notary, a division of assets — or simply you.
Proof you can redo, established by someone with nothing else to sell you.
And what the file does not prove, the File says: that is what makes it credible.
Once. You only pay after you have received your file.
A consultant reviews your File. Then he answers your questions.
No automatic report does this: a person who knows your File, from the file received to the answer to your bank.
Sami Hannai · Sextant consultant
Your consultant explains the File and helps you answer the third party. He gives no investment advice and no tax advice.
Three waypoints. You pay at the last one.
The check-up, in your browser
In two minutes you see what your file contains. Nothing is sent.
Your file, your question, your card
Nothing is charged. Your consultant checks your file within two working days.
The File, then you pay
Reviewed by your consultant, as a PDF. €149, on delivery. Then your consultant answers your questions, with no time limit.
What people ask before dropping in a file.
The full method, measure by measure, is published on the format page (in French).
How is this different from a tax tool?
A tax tool calculates what you owe the state. Sextant establishes where your money came from, what it produced and what it is worth. The File calculates no tax; your accountant can use it to do so.
How is this different from an automatic report?
Software produces a report from whatever you import. The File is reviewed by a consultant, answers the specific question you ask, and says what it does not prove. Your consultant then explains it to you, for as long as you need. No subscription.
Will my bank accept it?
We cannot promise that: the bank decides. The File gives it what it looks for — the euros that came in, their path, what went out — and says what the file does not prove. That is what makes it credible.
And crypto received from elsewhere?
A payment received, another wallet: the platform's file shows the inflow, not its origin. If you have a document — an invoice, a contract — the File marks it as declared, with supporting documents. Otherwise, it writes it as origin not established.
What if my export is incomplete?
That is the most common case. The check-up tells you what is missing and how to fix it, most often by exporting again. A partly readable file produces a partial File, never a silent failure.
What if my file is not enough?
Your consultant checks it within two working days of your order. If it does not allow us to draw up the File, he tells you why, your card is erased and nothing is charged.
What happens to my file?
Your file is destroyed within thirty days of delivery. If there is no File, it is destroyed as soon as we know there will be none: no card registered within seven days, a withdrawal, or a file that does not allow us to draw up the File. The File itself is kept for five years.
Will you tell me what to do next?
No. We measure what took place. That is a structural separation, not a cautionary formula.
Why pay afterwards?
Because a third party who asks you to take their word before showing their work is asking for exactly the blind trust this File exists to replace.
Who reviews my File?
Your consultant, Sami Hannai. He checks your file, draws up the File by a method published before the sale, and reviews it before delivering it. He gives no investment advice and no tax advice.
€149, paid on delivery.
Start with the check-up: free, no account, your file never leaves your browser.
Run my check-up — free, no account (in French) Order my Source of Funds FileSextant gives no investment advice. €149, VAT not applicable, art. 293 B of the French General Tax Code. The service is provided under French terms of sale: read the terms.