The available literature supports the proposition that the observable universe, if compressed or evaluated as a bounded system, possesses a specific finite mass that corresponds to a definite Schwarzschild radius, effectively characterizing a black hole of a specific size.
The retrieved papers include theoretical cosmology studies exploring models where the observable universe is treated as a black hole with a mass M yielding a specific Schwarzschild or gravitational radius rS = 2GM. Papers 0, 4, and 9 all directly discuss or compute this relationship. No papers refute the claim.