Spiced Tuna Tartare with Cucumber Relish Ponzu and Black Sesame Seeds

Name: Spiced Tuna Tartare with Cucumber Relish Ponzu and Black Sesame Seeds
Ingredients: 2 pounds sushi grade tuna, small dice; 1 teaspoon salt; 1/8 teaspoon cayenne pepper; 1/4 cup extra virgin olive oil; Fresh white pepper, to taste; 1 English cucumber, brunoise, with no seeds; 1 teaspoon black sesame seeds; 1/2 teaspoon salt; 1 tablespoon pickled ginger, minced; 1 jalapeno, brunoise, no seeds; Juice of 1 lemon; 1 cup lemon juice; 1 cup soy sauce; 1 cup chicken stock; 1 1/8 cup chili oil; 1/3 cup sesame oil; 1 teaspoon butcher ground pepper; Pinch ground cumin; 1 teaspoon grated ginger