Noun
A fact or statement that is recorded in governmental records or in publications.
(law) A fact that is contained within court files or has otherwise been entered into evidence before the court.
Source: en.wiktionary.orgThe high court had observed that it is a matter of record that main accused Brij Bhushan Singal has not been arrested and co-accused Neeraj Singal has already been granted bail. Source: Internet
Narendra Modi’s admiration for Deen Dayal Upadhyaya is a matter of record. Source: Internet
It is a matter of record that Mr. Trump has been a loser in many business ventures (Trump Steaks, anyone?). Source: Internet