What's the noun for credentialing? Here's the word you're looking for.
credit
Reliance on the truth of something said or done; faith; trust.
(uncountable) Recognition and respect.
(countable) Acknowledgement of a contribution, especially in the performing arts.
(plural) Written titles and other information about the TV program or movie shown at the beginning and/or end of the TV program or movie.
(uncountable, law, business) A privilege of delayed payment extended to a buyer or borrower on the seller's or lender's belief that what is given will be repaid.
The time given for payment for something sold on trust.
(uncountable, US) A person's credit rating or creditworthiness, as represented by their history of borrowing and repayment (or non payment).
(accounting) An addition to certain accounts.
(tax accounting) A reduction in taxes owed, or a refund for excess taxes paid.
“But their demands helped to muddy the waters and were given wide credence among their supporters in the United States.”
“In fact, scholarly research lends credence to the observational accounts of the mainstream news media and the conventional wisdom of partisan practitioners.”
“And what difference is there between the credibleness and rationalness of any of these wonders and the credibleness and rationalness of Papal infallibility?”
“Spamming is an honorable profession, and all spammers live by the credo that everyone should have the right to unsubscribe from future mailings.”
“John Spurling compels us to view the religious aspect of Greene's fiction as something much more complex than the religious credo of some of his characters.”
“Its credo espouses values such as integrity, offering the best value and service, and sustainability.”