BISON Requires Proof of Origin (Source of Funds) – Legal Assistance

When BISON Requests Documentation: The Goal Is “Verifiable, Traceable, and Timely”

Many clients are surprised by how much detail platforms may request regarding deposits, withdrawals, or transfers. What matters is not “as much paperwork as possible,” but a clear logic:

• What has been deposited or transferred?
• Where did the assets originally come from (acquisition/creation)?
• How did the flow of assets (platforms/wallets/transfers) work?
• Why is this account plausible and internally consistent?

We'll help you answer these questions in a way that allows BISON (or the examiner) to understand the facts without having to guess.

Typical Requirements

Depending on the specific circumstances of the case, the following, among other factors, may be relevant:

1. Proof of Purchase

• Confirmations/Statements from the Platform
• Transaction Histories as an Official Report
• Screenshots, if a report is not available (showing the account holder's name)

2. Fiat Cash Flow

• Bank statements/transfer receipts for EUR deposits to an exchange or payment provider
• Withdrawal Statements (from the platform to your bank account)

3. On-Chain Transfers / Wallet Verification

• Transaction hashes (TXIDs), timestamps, amounts
• Reasonable assignment of your own wallets (depending on your strategy)
• A Brief Timeline: “Wallet → Platform → Wallet”

4. Special Constellations

• Private Loans/Repayments (briefly documented, with a traceable payment history)
• Gift/Inheritance (Evidence of the Transfer of Assets)
• Mining/Staking/Rewards (Evidence/Reports, if available)

Our Support: Structured, Not Just a “File Dump”

We generally work with a document index and a brief chronology (1–2 pages), supplemented by clearly labeled attachments. Goal: The reviewer can “go through” the package quickly.

Typical services:

• Initial review of the BISON request (wording, deadline, types of documents requested)
• Document Strategy: Primary Documents vs. Substitute Documents vs. Non-Essential Documents
• Organizing the Crypto History (chronologically, consistently, and transparently)
• Draft Response to BISON + List of Attachments
• Assistance with follow-up questions (submit specific additional information instead of starting over from scratch)

A Tax Law Perspective: Avoid Creating Unnecessary Contradictions

Origin verification often involves tax documentation issues as well (e.g., acquisition dates, assignment of wallets/platforms, consistent history). Our approach is pragmatic:

• We only disclose the information necessary for the origin verification,
• check for typical inconsistencies in advance,
• and help anticipate tax-related issues rather than inadvertently triggering them.

Getting Started Quickly: What We Need From You

• Screenshot/PDF of the BISON message (including deadline)
• Brief highlights: affected coins, approximate time frames, platforms/wallets used
• Everything that is available (reports, bank statements, screenshots)—even if it is incomplete

We'll continue working on the rest in a structured manner.

‍