> how is ownership established if there is no single source of truth?

There is: the county clerk in the county where the land is located.

No, the county clerk records aren’t a “single source of truth”. In the US system, it is possible to convince a court the county records are wrong, and order them overridden-which makes them not the single source of truth.

By contrast, in the Torrens system, whatever the government records say are final. If you are the innocent victim of a mistake by the government (or a fraud against it), the government has to compensate you; but you don’t actually get the land back if it has since been sold to an innocent purchaser.

> in the Torrens system, whatever the government records say are final

First, it doesn't seem like that's always the case, based on another post upthread talking about a land ownership case that went to the high court because of an error in the government's records.

Second, since there is no single government for the entire world, any government trying to implement a Torrens system is still going to face the problem of events happening outside its jurisdiction that its records do not and cannot contain, which affect ownership of property in its jurisdiction. So there cannot be a "single source of truth" in the sense you appear to be using the term, even in the Torrens system.

> is still going to face the problem of events happening outside its jurisdiction that its records do not and cannot contain

Excuse my German ignorance, but my understanding of how it works here is that unless the transfer is notarized, logged and recorded with the local authority, there has not been a legal transfer. So, by that definition of land ownership, no "events outside of its jurisdiction" can take place. Any such agreements become binding only upon their verified registration. A notary is responsible not only for confirming the transfer but also as independent consultant so neither party gets seriously ripped off. (And if they didn't, they would be in serious liability trouble.)

The "share of the database" is managed and owned by the local government, but its records are available all across Germany for authorities to look up. The vector database of lots is public, and there are procedures to request access to ownership documents for various purposes. The procedure is that when you want to buy a certain property, the owner confirms that you have permission to get the official record directly from the land registry, which then become the basis for any serious negotiations as what is recorded there is in fact the single source of truth.

In the three states where I've been involved in or observed real estate transactions, the system is similar in that a real estate transaction must be recorded with the county clerk to become effective. Generally documents are notarized to validate the identity of the signatories, and a notary is expected to confirm that the signatories understand what they are signing.

However, afaik, county clerks do not validate deeds; they will dutifully record any submitted deed if it follows the proper forms. If there is doubt about the validity of a conveyance, the whole history of recorded deeds for a property can be examined and potentially set aside if found to be fraudulent. Adverse possession laws can moot disputes about old conveyances though: after some time, someone who has "color of title", actual possession, and pays property taxes will gain actual title to the property, even if their original deed was deficient.

In a land registry system, the keeper of the registry generally validates that conveyances are approved by the current owner; this doesn't happen in a system of registered deeds. Deeds I've seen don't truly identify the grantors or grantees either. Typically just the first and last names. There are many people with my name, but if you have a deed for my house signed by the Pulitzer Prize winning author who shares my name, you can record it even though it's not actually valid.

Yes, it does sound like typical German bureaucracy to make events like death outside the jurisdiction impossible unless the deceased has obtained prior approval to kick the bucket. :)

Well, I do enjoy the layers of protection implemented here. It sounds like you wouldn't?

The record from the land registry includes things like wayrights for third parties, known ground contaminations, utilities/water/power lines etc. -- all very relevant to me as a potential buyer. I did enjoy the notaries explanations of various aspects, which went beyond reading the contract out loud and making sure we verbally understood what we were going to sign. The process also forces both parties to have written copies of everything prior to the final meeting, which provides another chance to let it sink in and potentially reconsider -- which in our case, we did. Also, they're really trained to verify IDs, not like a random clerk in some liquor store.

I understand one can experience it as "bureaucracy" and "annoyance" in their individual case, but then I wonder how much such people consider the bigger picture and what the benefit of all of it really is, for their own and for societies sake, and what kind of shitshow it would turn into if we got rid of all the "bureaucracy" -- such as described in the very blogpost here.

Even if I (wrongly?) assume I am always on top of things and I will not get ripped off ever, only so-called stupid people will, I really don't need more angry people who fell for scams or made quick decisions that they regret or whose identity got 'stolen' around me/on public streets/in bars. If it was for me, we could add even more such layers of protection, which you seem to see only as "(unnecessary) bureaucracy"?

In the Torrens system, if you do not register the transfer of property with the government, then the transfer hasn't happened. So whatever else happens in the rest of the world doesn't matter (at least, unless the land itself is annexed by another government).

(And, from similar cases in the UK which has this system, if the land registry fucks up the transfer is still final and this has been upheld by the court, the government may just be liable for damages)

> In the Torrens system, if you do not register the transfer of property with the government, then the transfer hasn't happened.

This is also true of county clerks in the US: any transfer of property in the county has to be recorded on a deed that is submitted to the county clerk and kept on file by them. Otherwise it hasn't happened.

> if the land registry fucks up the transfer is still final

This is the part that might not be the same in all US jurisdictions (though it appears it is the same in some, someone posted upthread about Iowa having a system like this).

FWIW even in the US system the courts usually won't order someone off land they are living on or using even if this were the case. At worst they would order compensation be paid - which is what title insurance actually covers.

Many states have a statute of limitations anyway. If you live on the land and pay the property taxes for N years everything else becomes irrelevant. Either the title was transferred to you or you squatted on abandoned land for N years: in both cases it becomes yours.

It's also entirely possible for a judge to just change the records because they don't like them. It's pretty common in Texas to see deed restrictions removed if the local government doesn't want them on there for example.

But at least in some places in the US that's actually just a log of some kinds of transactions (sales and mortgages): you don't have a normalized field in a database somewhere that spits out "this person owns this spot" instead you have to build up from each individual transaction- plus there are transactions that don't take place on the log, e.g. deaths and inheritance or marriage/divorce that could take place outside the purview of the county clerk.

e.g. a married couple buys a house, then one of them dies, and the will is recorded in a different state and leaves their property to their kids rather than the spouse, that sort of update would not be recorded in the county clerk's office in my state.

> at least in some places in the US that's actually just a log of some kinds of transactions

That's true--but as I pointed out just now in response to another post, since there is no single government having jurisdiction over the entire world, there is always the possibility of events happening outside a given jurisdiction that affect the ownership of property in that jurisdiction. No system of records in a jurisdiction can completely prevent that.