UK telecoms regulator Ofcom has laid out how porn sites could verify users’ ages under the newly passed Online Safety Act. Although the law gives sites the choice of how they keep out underage users, the regulator is publishing a list of measures they’ll be able to use to comply. These include having a bank or mobile network confirm that a user is at least 18 years old (with that user’s consent) or asking a user to supply valid details for a credit card that’s only available to…