Wilder, who remains undefeated with 38 knockouts, has been nearly begging for his shot at unified heavyweight champ Anthony Joshua and he went after him again after the win at the Barclays Center on Saturday night.
Wilder showed his opponent no mercy. I know I'm the champion, I know I'm the best.
But with the clock ticking, the 32-year-old left no doubts as a four-punch combination separated Stiverne from his senses and the referee called a halt to the fight at the 2:59 mark in the first round.
However, Joshua's trainer Robert McCracken has previously said he would personally like to see Joshua fight Kiwi Joseph Parker the current WBO heavyweight champ before Wilder.
It wasn't long before the opening came as Wilder breached the high guard of "B". The world wants Joshua, the world wants Wilder, I want Joshua.
Facing the camera and addressing Joshua directly, he said: "I declare war on you!" After a minute where neither fighter did much, Wilder thumped his chest, pressed forward and cut loose a right hand that sent Stiverne to the canvas.
Asked about failing to secure those bigger fights and Anthony Joshua in particular, Wilder added: "I've been waiting on that fight for a long time".
"They have a great thing going over there but they have to come to fight me". "No more dodging, no more dodging, no more excuses". They trying to give me the peasant without the king on the contract.
Ortiz could be almost 40 by the time he contests titles again while England's Tyson Fury is five or six stones overweight and a long way from title contention, despite all his regular promises on social media of winning back the titles in 2018. "Make a date, don't wait".
Wilder may lack a name on his record like Wladimir Klitschko, who Joshua stopped in the 11th round in April.
Wilder said: "A king doesn't chase a peasant".
He now acts as Deontay Wilder's manager and has been on the front line, behind the scenes with negotiations with Joshua's promoter Eddie Hearn to try to make the fight. I'm saying it because two unbeaten heavyweights, one unified champion, one lineal champion, both over six foot six tall, both over 18 stone.