PHerc1451 whole-scroll unroll, ufsm coarse-to-fine (c2f), 2026-10-31
=====================================================================
Scan: PHerc1451/20250521151225-8.640um-1.2m-116keV-masked.zarr (8.64 um). Supersedes the 10-28 corpus run
(volcomp/PHerc1451/representations/ufsm-c2f-20261028, left in place).

Method: wind96 network fields (phase, normals, density) -> global count-field reference model -> slab fits snapped to the
reference (fit-fix build, ufsm master ad6198f, which includes the 3b40993 phase gate and the 2c54b28 OOM guards) -> fit-join
-> per-wrap surfaces (ufsm wraps, --min-cm2 0.5) -> one continuous spiral strip (ufsm strip --last 116) -> strip-flatten
(chunked SLIM + blend, GPU) -> render (CT + ift3-24000 ink, holes filled along the normal and inpainted) -> strip-mosaic.

Scores (pod logs, tsv/):
  join: integer agreement on the slab overlaps 0.890
  wrap-check: CT papyrus peaks per fitted turn 0.951 overall (1 = right); 0.72 at 0-1 mm, 0.96-1.08 from 1 to 11 mm,
    0.88-0.64 from 11 to 16 mm, falling at the outer edge; verdicts 97 real, 12 dup, 0 merged.
  Outer-end duplicate wraps dropped: wrap-check flags w117-w128 as duplicated outer turns and w129-w151 are near-empty
    (on papyrus <= 0.087), so the strip stops at w116 (--last 116) and wraps/ holds w026-w116 only.
  strip: 91 wraps w116 -> w026 (outermost first), 147947 x 3681 vertices, flattened 436.6 cm x 13.8 cm,
    mesh area 5654 cm2, aniso p50/p95 1.05/1.13, flips 0.0045% of area
  renders: 9 stripes at 8.64 um/px, valid 5509 cm2 with fill, on papyrus (CT >= 80 within 3x3 px) 0.633

Layout:
  wraps/*.sfc           per-wrap surfaces w026-w116 (ufsm .sfc)
  strip/strip.sfc       the continuous strip (+ strip.json, strip.tsv per-wrap column ranges)
  strip/flat/stripes/wsNNN/{x,y,z,gu,gv}.tif + meta.json   flattened stripes (tifxyz-style coordinates + flat uv)
  strip/flat/*.tsv, flat.json, flatten.txt                  flatten tables (the solver lattice is not included)
  renders/rgb_fill/     filled CT+ink mosaic: overview.jpg (strip folded into 10 rows), overview_8000.jpg,
                        strip_long.jpg (one row), wsNNN_ct_ink.jpg (per stripe, full res, CT above ink)
  renders/papyrus/      papyrus-colour mosaic: overview*.jpg, strip_long.jpg, wsNNN_papyrus.jpg
  tsv/                  wrapcheck.tsv/.log, join/ref/slabs/wraps/strip/stripflat logs, progress logs,
                        strip_papyrus.tsv (on-papyrus share per cm), papyrus_wraps.tsv (per wrap)