Good Idea
While there is little incentive for the casinos, it would be of HUGE benefit to players. The verification would have to be thorough though, and it would have to be tailored to catch out the usual scams that fraudsters use, and this should include ensuring that casinos have a means to verify that only the "owner" of the verified identity is using it.
There is already a device on the market for this, there is a fingerprint scanner that can be connected via USB to the PC, and the original purpose was to combat online card fraud. The independent company would have to verify the identity of the player AND request a fingerprint (or other bioscan) to be recorded to ensure only the correct person could use the generated verification.
The player could be issued with a card, and a USB bioverification device, such as a fingerprint scanner. If done properly, this should prevent the scam where players "rent" a whole bunch of genuine identities.
Casinos could then pass back registration details to the company as new players register for casino accounts, and the company could then cross check with details from other casinos to ensure that there are no "odd" goings on, such as one player seeming to play from 20 PC's at 10 different addresses, which would require further checking.
The main advantage would be that players can avoid finding themselves passed at many casinos, and find one calls them a fraud due usually to some mistake.
Any company would have to earn the respect of the casino industry, and could issue a seal, similar to eCogra, to show players which casinos are participating in the scheme, this will not be al of them, but if it gets off the ground there will be a marketing advantage to a casino to join the scheme rather than go it alone. For casinos, it would make little difference if they already outsource this function.
A previous suggestion has been that eCogra operate such a scheme, as they have already built up a reputation with the industry. A new company will find it hard to win enough trust before their start up capital is used up. If run from the UK, they can benefit from the reputation of our various laws, such as Data Protection, membership of the EU, consumer protection, etc.
Rogue casinos will be the ones least likely to ever join such a scheme, as they will be robbed of a means to avoid payment.
Whatever is done, there will never be 100% eradication of fraud, but there should be a reduction, as well as increased confidence from players that they will only have to undergo scrutiny the once, and pass or fail there and then, and not worry they will one day find a casino has confiscated winnings because they MIGHT be a fraud.