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  2. Payment card number - Wikipedia

    en.wikipedia.org/wiki/Payment_card_number

    A payment card number, primary account number (PAN), or simply a card number, is the card identifier found on payment cards, such as credit cards and debit cards, as well as stored-value cards, gift cards and other similar cards. In some situations the card number is referred to as a bank card number. The card number is primarily a card ...

  3. Dual code - Wikipedia

    en.wikipedia.org/wiki/Dual_code

    A self-dual code is one which is its own dual. This implies that n is even and dim C = n/2.If a self-dual code is such that each codeword's weight is a multiple of some constant >, then it is of one of the following four types: [1]

  4. Why am I asked to verify my account after signing in?

    help.aol.com/articles/why-am-i-asked-to-verify...

    You may be prompted to get a verification code at your recovery phone number or recovery email address for any of the following reasons: ... If you've received a ...

  5. Telephone numbers in Canada - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Canada

    Overseas calls to locations outside the NANP are dialled with the 011 international prefix, followed by the country code and the national significant number. Canada was divided into nine numbering plan areas with unique area codes in 1947 when the American Telephone and Telegraph Company (AT&T) designed the first comprehensive telephone ...

  6. Apple Pay - Wikipedia

    en.wikipedia.org/wiki/Apple_Pay

    Apple Pay is a mobile payment service by Apple Inc. that allows users to make payments in person, in iOS apps, and on the web.Supported on iPhone, Apple Watch, iPad, Mac, and Vision Pro, Apple Pay digitizes and can replace a credit or debit card chip and PIN transaction at a contactless-capable point-of-sale terminal.

  7. Chime (company) - Wikipedia

    en.wikipedia.org/wiki/Chime_(company)

    Chime Financial, Inc. is a San Francisco–based financial technology company that partners with regional banks to provide certain fee-free [4] [5] mobile banking services. The company offers early access to paychecks, negative account balances without overdraft fees, [2] high-yield savings accounts, [5] peer-to-peer payments, [6] and an interest-free secured credit card. [7]

  8. Random password generator - Wikipedia

    en.wikipedia.org/wiki/Random_password_generator

    A random password generator is a software program or hardware device that takes input from a random or pseudo-random number generator and automatically generates a password. Random passwords can be generated manually, using simple sources of randomness such as dice or coins , or they can be generated using a computer.

  9. Hamming code - Wikipedia

    en.wikipedia.org/wiki/Hamming_code

    The parity-check matrix of a Hamming code is constructed by listing all columns of length r that are non-zero, which means that the dual code of the Hamming code is the shortened Hadamard code, also known as a Simplex code. The parity-check matrix has the property that any two columns are pairwise linearly independent.