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Secure crypto invoicing

On-chain proof, made formal.

Check any wallet, or get paid with the payer's wallet auto-screened — and walk away with a timestamped report a bank, auditor, or court will accept.

  • 9 chains — Ethereum, L2s, Bitcoin, Solana, Tron
  • Sanctions, AML, mixer & source-of-funds
  • Every report hash-anchored with OpenTimestamps
See how it works
ConstatumConstatumSecure form · AR-01
Encrypted

Check an address

Screen any wallet — sanctions, AML, mixer and source-of-funds. Free preview; €9.99 to download the formal PDF.

Wallet address
Supports Ethereum, L2s, Bitcoin, Solana, and Tron.

Free preview first — pay only to download the full report.

Information service · not a VASP · hash + OpenTimestamps proof

Getting paid in crypto?

Create a screened invoice — the wallet your client pays from is checked automatically.

How it works

Three steps to a defensible document.

  1. Step 1

    Enter an address — or invoice a client

    Check any wallet, or send a payment link. We detect the chain automatically across 9 networks.

  2. Step 2

    We screen it

    Sanctions lists, AML scoring, mixer and darknet exposure, and source-of-funds — in seconds.

  3. Step 3

    Get a formal report

    A clean, timestamped PDF you can hand to a bank, auditor, or court. Verifiable by anyone.