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A problem people bring · solved

Protect our land papers from forgery

Start the route5 steps · 45 min · small depositOne step at a time, right here in the House. No tabs to juggle.

Your family can fix a permanent, dated record of its land papers this week. Store a copy and its fingerprint, then have neighbours and elders sign a witness statement onchain. A later forgery or a lost folder becomes much easier to challenge. It backs your title as evidence; the registry and courts still decide ownership.

  • 3 stops
  • 35 minutes, all in
  • 3 surprises
  • 1 live demo
Read the routefirst, who knew?

6 ways through

Ways to solve it

pick the one that fits you
  • Live today

    ArDrive (Arweave)

    Arweave stores data with a one-time payment designed for permanence; ArDrive gives a simple upload app.

    Step by stepopens inside the House
  • Live today

    Ethereum Attestation Service

    The Ethereum Attestation Service lets anyone sign a public statement about a wallet, such as 'delivered this project', that anyone can verify later without asking the signer.

    Step by stepopens inside the House
  • Live today

    Safe

    A Safe multisig requires a set number of owners to approve any transaction, so no single lost phone or bad decision drains it.

    Step by stepopens in a new tab, steps stay here
  • Live today

    ArDrive

    Try it live before you commit to anything.

    ArDrive · open inside the HouseNew tab ↗

    If a wallet or sign-in will not open in here, use New tab. Some wallets refuse to run inside a frame.

    opens inside the House
  • Live today

    Arweave

    Storing only fingerprints of sensitive deeds gives proof of existence without exposing private details.

    opens in a new tab, steps stay here
  • Waiting to be built

    Not quite it? The House builds it

    A simple tool that fingerprints a land document, stores the fingerprint only, and prints a certificate with a check link.

    Ask for itright here, nothing to leave

Ours or someone else's, the House shows what works best for you. Some links are invite links with a perk; they never change what we show.

Chapter 1

Who knew?

the bits nobody tells you
Oh! #1
Georgia's public registry began recording land titles on a private blockchain anchored to Bitcoin in 2016, built with Bitfury.
About 100,000 titles were reported registered within the first year.
Oh! #2
Any change to a file, even one digit, changes its fingerprint completely, so an edited copy is easy to spot.
A cryptographic hash is unique to the exact file.
Oh! #3
Neighbours and elders can sign a statement about who has farmed a plot, dated and public.
An onchain attestation records who said what and when.
People assume

Securing a land claim means lawyers and repeated trips to the registry.

Actually

A small scan stores permanently for free through ArDrive Turbo, and attestations cost a fraction of a cent on Base. Registering or defending title legally still costs what it costs locally.

Chapter 2

The free route, step by step

tap a stop to do it now

Do it with me

Walk this route, step by step

5 stepsabout 45 minSmall deposit

  1. Prove a document existed on a given day, for free 5 min
  2. Publish a page that stays online without a host 10 min
  3. Give or get a work reference that lives onchain 10 min
  4. Share a family wallet that needs two of three to move money 15 min
  5. Say hello to OpenTimestamps 5 min
▶ Start the routeThe sites open beside the steps. Your place is kept.

3 stops, cheapest first

  1. Stop 1 · PublishPublish a page that stays online without a hostFiles under about 100 KiB are free through ArDrive Turbo; larger ones cost a one-time fee10 minArDrive (Arweave)
  2. Stop 2 · OwnGive or get a work reference that lives onchainThe protocol is free; you pay network gas, usually a fraction of a cent on Base and other L2s10 minEthereum Attestation Service
  3. Stop 3 · TogetherShare a family wallet that needs two of three to move moneyGas to create; cheap on L2s15 minSafe

Three ways through

Pick your route

free, bold, or build the missing piece
  1. Start free tonight

    Fix a dated fingerprint on Bitcoin tonight

    OpenTimestamps proves your deed existed today, for free, and the deed never leaves your phone.

    1. Prove a document existed on a given day, for free
    2. Publish a page that stays online without a host

    Cost Free.

  2. The bold play

    Get witnesses to sign the fingerprint

    Neighbours and elders attest the fingerprint, so a later forgery is easier to challenge.

    1. Prove a document existed on a given day, for free
    2. Give or get a work reference that lives onchain
    3. Share a family wallet that needs two of three to move money

    Cost A fraction of a cent per attestation. Legal title still comes from the registry and courts.

  3. Build it

    Build the family deed vault

    Built by the House

    No simple tool timestamps a deed, gathers witness signatures and prints a check link in one go. The House will build it with you.

    1. Own a working onchain app with your name on it
    2. Hash the file, timestamp it, collect EAS witnesses, print a certificate.

    Cost Build time.

    Build it yourselfwith Deployr Build it with the Housein the Workshop

Your version

Make this mine

Tell the Engine where you stand and it re-routes this answer for you. Three free a day, shared with Ask the Engine. Engine Pro members get unlimited.

What I already have
What is possiblelive today, or yours to build3

Past the basics

What’s possible

live today, or yours to build
  • Live today

    Timestamp your deed fingerprint on Bitcoin.

    How Drop the file into OpenTimestamps. Keep the .ots file.

    Try it
  • Live today

    Store a permanent scan of your papers.

    How Upload through ArDrive. Small files are free.

    Try it
  • Possible to build

    A deed vault village leaders can run for a whole community.

    How Combine OpenTimestamps, EAS and a printed check link.

    Build it yourselfwith Deployr Build it with the Housein the Workshop
Combos nobody marketedproject A + project B = something new3

Project + project

Combos nobody marketed

A + B = something new
  • OpenTimestampsEAS witnesses

    A date nobody can backdate plus people who saw the paper.

    Why it works Bitcoin fixes the date; EAS records who vouched.

  • ArDrivea family Safe

    The scan lives forever and the family decides together who can act.

    Why it works Permanent storage plus multisig control.

  • a registryPropy

    Where a registry partners, the title itself can move onchain.

    Why it works Propy runs onchain property closings in some US counties.

Chapter 3

Try it live

Do not take our word for it. ArDrive runs right here, so you can poke at the real thing before you commit to anything.

Wallet or sign-in will not open in here? Open ArDrive in a new tab ↗

Where it matters mostthe places and people it changes things for3

Chapter 4

Where it matters most

  • families with customary land

    Where titles are informal, signed witness statements create a dated record.

  • heirs abroad

    A permanent copy means the papers do not depend on one relative's cupboard.

  • places with weak registries

    A dated fingerprint helps show a document existed before a dispute began.

Chapter 5 · Not built yet?

Build it

A simple tool that fingerprints a land document, stores the fingerprint only, and prints a certificate with a check link.

Who could build it Families and community land groups who cannot afford lawyers.

Build it yourselfwith Deployr Build it with the Housein the Workshop
Uses you never marketedfor founders of the projects on this route2

For founders

Uses you never marketed

All projects →
Ethereum Attestation ServiceUnmarketed use

Community witness statements about land use could help families in places with informal titles.

ArweaveUnmarketed use

Storing only fingerprints of sensitive deeds gives proof of existence without exposing private details.

People to meetconnections that make this easier4

Connections

People to meet

Propose a bridge →
  • OpenTimestamps

    Learn how free Bitcoin proofs work.

    Say hello
  • Ethereum Attestation Service

    Learn how witness attestations work.

    Say hello
  • Propy

    See how onchain titles work where registries allow.

    Say hello
  • Community builders

    Team up on the deed vault.

    Go there

Propose a bridgetwo projects, one outcome neither could reach alone

Questions

Does putting my land title on a blockchain make me the legal owner?

No. Ownership is decided by your country's registry and courts. An onchain record is supporting evidence only.

Should I upload my full land documents publicly?

Think carefully. Deeds can contain private details. Storing only a fingerprint proves the file existed without showing its contents.

Will a court accept a blockchain record of my land papers?

It depends on the country and judge. Some accept digital evidence; never assume it. Ask a local lawyer.

What is a document fingerprint and how is it checked?

It is a short code made from the exact file. Anyone with the original can recompute it and see if it matches the stored record.

The spark

If a cousin produced a different deed tomorrow, what dated proof could your family show?

Talk to the House about itBuild it with us

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