MTB id and theft?

Can anyone tell me if mountain bikes and bikes in general have the equivalent of a VIN on a car?
And also is there some sort of crime database that people can check to make sure that a used bike they may be considering buying is not actually reported as stolen before they buy?
This would I'm sure be very useful information for a lot of people who may consider buying a used bike on eBay etc.
The only other way to try and ensure this is by asking if the seller has original receipts which they may not always keep even if they did buy the bike themselves and it is a genuine sale and transfer from one owner to a new owner.
And also is there some sort of crime database that people can check to make sure that a used bike they may be considering buying is not actually reported as stolen before they buy?
This would I'm sure be very useful information for a lot of people who may consider buying a used bike on eBay etc.
The only other way to try and ensure this is by asking if the seller has original receipts which they may not always keep even if they did buy the bike themselves and it is a genuine sale and transfer from one owner to a new owner.
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There is no secret ingredient - Kung Fu Panda
London Calling on Facebook
Parktools
The rest of the 90% of the value of the bike has no ID.
No national database.
Giant Trance
Radon ZR 27.5 Race
Btwin Alur700
Merida CX500
It doesn't show up so is unobtrusive but is better than nothing. However I don't know if it washes off etc?
Canyon Nerve XC7
Stolen Carrera Vulcan
Like smart water or microdot though, only any use once the bike is in the hands of the Police.
If using UV pen its best to remark it often.
On a related issue, do they make some sort of GPS tracker you can drop inside your frame or something?
Canyon Nerve XC7
Stolen Carrera Vulcan
There is no secret ingredient - Kung Fu Panda
London Calling on Facebook
Parktools