How it works

A plain-language explanation of how Landblock connects land registries.

The basic idea

Imagine two government land registries — one in Peru, one in Germany. Each is authoritative for land rights in its own country. But if a German bank wants to verify a Peruvian title, there's no easy way to do it. They'd need a bilateral agreement, lawyers in both countries, and weeks of back-and-forth.

Landblock solves this by giving both registries a shared verification layer. Each registry publishes a cryptographic "fingerprint" of its records to Landblock. Anyone — a bank, a court, another registry — can check that fingerprint instantly, without contacting the original registry.

What is Mirror Mode?

Mirror Mode is how registries join Landblock. When a registry connects in Mirror Mode, it publishes proofs of its records — but keeps full control. The actual land data never leaves the registry. Only a cryptographic hash is published on-chain, like a seal on an envelope that proves the contents haven't changed.

The registry decides what to publish, when to publish it, and who can access the underlying records. Landblock just provides the infrastructure to verify those proofs globally.

What happens when someone verifies a record?

When a bank or court wants to verify a land record, they query Landblock. Landblock checks the on-chain proof and returns a result with a Trust Context — a label that tells the verifier how much confidence to place in the result:

• Direct Federation — the registries have a formal relationship.
• Shared Accreditor — both registries are verified by the same authority.
• Third-Party Attestation — a trusted third party has confirmed the record.
• None — the record is published but no formal trust relationship exists.

Is land data stored on the blockchain?

No. Land records never go on-chain. Only a cryptographic hash — a mathematical fingerprint of the record — is stored on the blockchain. The actual record stays with the registry, encrypted and access-controlled. The hash proves the record existed at a specific point in time and hasn't been altered since.

Who controls everything?

The registry that published it controls its own data. The Landblock DAO governs the protocol rules — what it means to be an accredited registry, how verification works, and how the protocol upgrades. No one governs land itself. Courts and governments do that.