Can I check OPH myself?
Yes. The construction is published as a program, and every result it reports is stored next to the code that produced it, with a fingerprint so a replay can be compared digit for digit. The smallest check needs nothing beyond a standard installation of Python. It replays all 264 complete histories of one observer on a laptop and confirms eighteen facts about them. A fuller run, with a few numerical libraries added, replays every stored result, among them the interference odds and clock statistics quoted in the book, and fails if any comes out different by a single digit. Some checks need no computer. The central twelve-observer calculation covers 2,048 states and can be done by hand in an evening, and five playing cards are enough to check the identity behind universal computation.
Also in Appendix A: Eighteen Questions, Chapter 37: Why Does the Loop Have No Beginning?.
This answer comes from OPH, Observer Patch Holography. OPH is a rigorous, consistent and complete description of the unified, self-creating computational Universe we inhabit. Its consistency is machine-checked: the fixed point at its core is constructed explicitly, and a theory with a model contains no contradiction.
To understand OPH and check every step yourself, start with the free book Reverse Engineering Reality. It builds the theory from the ground up, and the OPH Notebook answers your questions while you read.
read the free bookask the notebookor ask sage:read appendix d: Run It Yourselfwatch a universe make its own particles