You would find the listings in many of the karate histories.
The book Okinawan Karate: Teachers, Styles and Secret Techniques by Mark Bishop provides hundreds of senior practitioners and their lineage.
Each style of karate has a 'Grandmaster' that is the highest ranked in that style. Typically each style has a single 10th Dan.
There is no single master.
There was no single master - karate encompasses the product of an enormous number of practitioners.
You don't master karate at brown belt. You don't normally ever master karate. The best thing to do is to practice often and hard.
Pork chops
You bow. That's it.
Pork chops
A Dan represents everlasting and you will soon be a master.
Jaden Smith fights Cheng at the end of the Karate Kid.
There is only one known on the east coast; Soke Tony Morrison.
Master the arts of parkour, karate and gymnastics
You may be referring to a short lived TV show called The Master. It was ninjitsu, not karate.
black. it just has the roman # symbol