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.