Initially, the Twitter verification mark of a blue checkmark indicated that the account holder is a notable figure in society such as a senior government official, a journalist or a public figure.
In place of the legacy verification programme, Twitter introduced Twitter Blue, a programme that would require users to pay for verification.
“Only accounts actively subscribed to Twitter Blue are eligible to receive the blue checkmark.”
For an account to qualify for Twitter Blue, it must have a display name and profile photo and must be active in the past 30 days.
The account must also be older than 30 days upon subscription and have a confirmed phone number.