Le Space Belege

No cloud

• The books reside exclusively on your device, encrypted with a key your passkey creates anew each time you unlock. There is no account, no password, and no copy with us; we run no server.
  Hosted on IPFS — the evidence, and how to verify it

  Only the app itself is served from IPFS — your receipts and data never live there; they stay local with you. There is no server of ours behind the PWA, and that is verifiable: the latest release run publishes the IPFS hash (CID) in its summary, and the same app over the public inbrowser.link gateway is the same, byte for byte — there your browser verifies the delivery against the hash itself.

  For those who want to verify it themselves: with your own IPFS node (Kubo) or the IPFS Companion extension, your browser fetches the app straight from the network — then not even the visit to belege.le-space.de can be logged anywhere. This is optional.

  How the pieces connect: the release run publishes the build's hash, the CID. Linking the domain writes exactly this CID into the DNSLink record of belege.le-space.de — and the IPNS address at inbrowser.link reads nothing but that record. You can check it right now: dig TXT _dnslink.belege.le-space.de has to show the CID from the release; with Kubo, ipfs resolve /ipns/belege.le-space.de does the same. And https://<CID>.ipfs.inbrowser.link/ or https://ipfs.aleph.sh/ipfs/<CID>/ serve that very build with no domain in between.

• Should the device fail, an optional decentralised archive stands in: every backup leaves the device sealed with that same passkey key and goes, through the OrbitDB Storage Bridge, to Aleph Cloud today — the bridge also speaks Lighthouse, and Filecoin Onchain Cloud is planned. Today a backup goes out on a click; archiving every change as it happens is in progress.
• Account transactions come straight from your bank: German banks over FinTS/HBCI, with Hibiscus on the Jameica platform — with no intermediary. For European banks under PSD2, Enable Banking is implemented but not yet field-tested. A small bridge on your own computer makes this possible; it also talks to the accounting mailbox, customer portals, exchanges and wallets, and nothing of it leaves your machine.

Crypto transactions

Every crypto movement becomes a booking in euros at the day’s rate, with its source named — ECB, Kraken, CoinGecko, Uniswap pools, the trade itself, or by hand. Swaps and migrations are followed across chains, and everything exports in an open, MIT-licensed ledger format.

Supported today

Blockchains

Bitcoin, Ethereum, Base, Arbitrum One, OP Mainnet, Polygon, Monero, Filecoin (USDFC), Akash, Nym (Nyx)

Exchanges

Kraken (read-only)

E-invoices

XRechnung (UBL and CII) and ZUGFeRD/Factur-X under EN 16931 — read and kept as the original; issuing them follows in the invoicing app

Continuous decentralised archiving

Every change is archived shortly after it is written, as a sealed increment: no backup window, no lost day, and a new device gets everything back with the passkey (chapter archived01 shows it). Aleph Cloud — optional and encrypted, sealed with a key from your passkey: only you can open the archive, and a new device gets everything back. Via the OrbitDB Storage Bridge (in progress: Filecoin Onchain Cloud, Lighthouse)

More on request.

AI, only on a click

• Your model, not ours: Le Space runs no AI and sees none of your data. The bridge asks the language model you configure.
• Our recommendation: a local model (Ollama, LM Studio) — or a TEE-hosted LLM whose attestation can be verified.
• Every control that queries the model carries the ✦ mark; the text leaves the device redacted, and usage and cost remain visible.

Who it is for

Small businesses and the self-employed — including those who hold or spend crypto assets: income in coins as well as expenses in utility tokens, say for Filecoin, Akash, Aleph or NymVPN services. The monthly DATEV package goes to your bookkeeping software or your tax advisor; the actual posting happens there.

Set-up in two minutes

1. Open belege.le-space.de and create a passkey — that is the entire set-up.
2. Even without the bridge, the built-in sample data can be loaded and every function tried — one click removes it again —, or upload a bank statement (CAMT.053) at once and begin matching.
3. For bank, mailbox, portals and AI, the bridge comes onto your computer — and we set it up with you.
4. In development: the bridge as a confidential VM (a trusted execution environment), launched in about three minutes before a working session and shut down after it — paid for only while you work, and with no outside eyes on the books, unlike a cloud service.

Open source, on purpose

• Built in a few weeks, with substantial assistance from AI. What can come into being this fast can no longer be protected by secrecy; the value lies not in the code but in the trust that it does what it promises — and that can only be verified when it lies open.
• That is why Le Space Belege is open source, under the AGPL-3.0: anyone can use the app for free, inspect it, develop it further independently — and those developments benefit everyone.
• For those who would rather not develop themselves: we take on adaptations, customisation and automation as a service.

More features

• Several devices, and collaboration: the receipts replicate peer-to-peer between phones and computers, over libp2p and OrbitDB, optionally — in the same room by QR code, on your own network through the bridge, or elsewhere over relays. A new device is admitted only after the passkey has been proven, and staff receive a time-limited read grant
• Installable as a PWA — the shell works offline
• E-invoices: XRechnung (UBL and CII) and ZUGFeRD/Factur-X — uploaded or from the mailbox, read at once without AI: seller, number, dates, VAT per rate, lines, total; credit notes and reverse charge recognised. The XML stays the original and travels as such into the DATEV export, backups and a book move
• Issuing e-invoices — currently in development in the invoicing app
• VAT on the home page: input VAT from the receipts and output VAT from your own invoices per month, quarter and year, the payable or refund — including intra-EU supplies with the lines for the EC Sales List, third country, §13b and the small-business limits. A help for the advance return, not the return itself
• Travel expenses: trips with their receipts and the statutory per-diems by hours and country, one statement per month as a PDF on SKR 03 travel accounts, the payout linked to it
• Matching by a score from amount, invoice and customer number, IBAN, vendor and date — transfers, fees, refunds and your own rules need no receipt
• Eigenbelege — for crypto with hash, both addresses and gas
• Customer portals as a receipt source, recorded once
• Vendor accounts for credit and collective statements
• Private payments from the business account: marked and settled
• DKIM, SPF and scam checks on receipt mail
• Move the books to another passkey — by a one-time key as a QR code, or by a passphrase
• One fiscal year at a time, with a year switch
• SKR 03 and BU keys; your own chart of accounts can be read in
• German and English, switched at once
• Paperless-ngx as a receipt source (planned)