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HashBuch

From Hash to Ledger

HashBuch is the accounting infrastructure for blockchain-based payments.

What the bank does with statements and vouchers for traditional payments, HashBuch does for decentralised payment networks, including automatic posting to the ERP system.

A product of Setrion GmbH

An open glass ledger with threads of light rising from it; one line glows green.

The Problem

For Digital Payments, There Is No Bank That Provides Vouchers

When a customer pays in stablecoins, or you pay a supplier over a blockchain network, there is no bank statement and no voucher for the balance sheet and the tax office. A blockchain explorer shows the transaction, but it books nothing.

HashBuch closes this gap: with traceable vouchers, individually or as one collective voucher per day, and it posts all the way to the general ledger.

A euro coin with circuit traces, its points of light dissolving into a network.

Outlook: Agentic Commerce

When AI agents start paying on their own, HashBuch makes sure these payments land cleanly in the company’s books.

How It Works

From Payment to Posting in Three Steps

  1. Add Your Wallets

    You enter the addresses of your wallets. HashBuch only reads along: it receives no key and cannot initiate a payment.

  2. Detect Payments

    HashBuch detects incoming and outgoing payments, assigns them to your business partners and creates a voucher for each payment, with account assignment and proof.

  3. Post to the ERP

    At the click of a button or automatically, HashBuch transfers the vouchers to your ERP system, individually or as one collective voucher per day.

Features

Two Modules, One Way into the ERP

Digital Payments

For payments in stablecoins: HashBuch produces the statement for each wallet and period, and a voucher for every payment with a consecutive number without gaps.

A HashBuch Digital Payments statement on a glass panel, with two more panels behind it for the previous months.

Classic Payments

For incoming and outgoing invoices from your Google Workspace mailbox: HashBuch reads e-invoices (ZUGFeRD, XRechnung) and PDF invoices, transfers them to your ERP system and files the vouchers in Google Drive. For suppliers you mark as reliable, it posts without a click.

A laptop shows HashBuch Classic Payments with the supplier list of a demo client.
  • ERP Transfer

    The vouchers land where the books are kept. You choose manual or automatic per channel; every transfer is logged, including one that fails.

  • One Collective Voucher per Day

    Like the end-of-day closing of a till: many small payments are combined into one voucher per business partner and day. The individual payments remain traceable as an attachment.

Compatibility

Connected to Your ERP

ERP Systems

  • Lexware OfficeDigital Payments and Classic Paymentslive
  • DATEVplanned
  • QuickBooksplanned

A different ERP system? Talk to us anyway.

Networks

Networks and stablecoins HashBuch reads today:

  • EthereumEURAU, USDC, USDT
  • PolygonEURAU, USDC, USDC.e
  • BaseEURAU
  • Arbitrum OneEURAU
  • OptimismEURAU
  • BNB Smart ChainEURAU
Threads of light from a network flow into an open glass book.

Security and Data Protection

Your Money Stays Where It Is

  • No Custody

    HashBuch knows the addresses of your wallets, never a key. It reads payments but never initiates one.

  • Encrypted Credentials

    The credentials for your ERP system are stored encrypted in the database, with a key that can be rotated.

  • Database in the EU

    The HashBuch database is hosted in a data centre in Ireland.

  • Access by Invitation Only

    Users join only by invitation, with one role per client. Sign-in can be protected with a second factor.

  • Traceable

    Voucher numbers without gaps for each voucher type, and a log of every transfer to the ERP system.

Pilot Customers Wanted

Does your company receive or make payments in stablecoins and keep its books in Lexware Office? Then we would like you as a pilot customer for HashBuch. A different ERP system? Talk to us anyway.

Become a Pilot Customer

Become a Pilot Customer

Write to us and we will reply by email.

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Or directly: kontakt@setrion.de · +49 162 7105915