Reconstructs the Problem 2.8 data directly from the challenge statement
(R, u=2n+3, w, the 4x4 M(n), both integer seed rows) and verifies by exact
rational arithmetic that the manuscript's specialisation reproduces it:
M_N(x_0) == official M(N), all 16 entries, at N = 0,1,2,3,5,8,17,40
A_0 = A*C - (5/4)H_0 == official first seed row
A_1 = S*C == official second seed row
(14R-567)/9 == 236337691420383 (the deformed coefficient restores)
18 assertions, three with explicit negative controls. fractions.Fraction
throughout; no floating point, no CAS.
Closes the one gap no existing certificate covered: the other four verify
statements about the deformed family, none verified that the family is the
official object.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WY6SfRYvm8zFKMX9GcjS8u