TFPT scientific source excerpt
Original repository path: experiments/theory-contracts/seam-source-character-search-20261015/source_reconstruction/PROOF.txt
Original file SHA-256: 424e2f8eaf021cae575e479ccca4fcd2b8a34df1e5d5410371a86144f07ddb5d
Inclusive original lines: 217-225
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000217 | 6a. A same-source variational selection, without changing B
000218 | 
000219 | Nonzero leakage does NOT make a seam transformation physically invalid.
000220 | It prevents the pure-isometric Wold route just examined. In the given CAR
000221 | source any unitary multiplication U=M_u still defines the quasifree state
000222 | with occupation U Q_occ U*. For smooth u its off-diagonal polarization
000223 | blocks are Hilbert-Schmidt, so it is also implementable in the sea Fock
000224 | representation. Thus non-inner candidates must not be discarded as impossible
000225 | physics merely because they fail the isometry test.