Pith Number

pith:DI7H2OLA

pith:2026:DI7H2OLALOZS74226SITQZ4RKQ

not attested not anchored not stored refs pending

Super-Resolution Structured-Illumination X-Ray Microscopy based on Fourier Decomposition

Benedikt G\"unther, Franz Pfeiffer, Lennart Forster, Martin Dierolf, Stefan Schwaiger

Stepped grating encodes high-frequency X-ray details into multiple low-resolution exposures for recovery via Fourier decomposition.

arxiv:2602.18343 v4 · 2026-02-20 · physics.optics

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\usepackage{pith}
\pithnumber{DI7H2OLALOZS74226SITQZ4RKQ}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

We achieve a resolution improvement by a factor of 2.2 for the projection image of a resolution test pattern.

C2weakest assumption

That the Fourier-domain superposition created by the stepped grating contains recoverable high-frequency components independent of the detection optics, as asserted in the abstract without quantitative validation of reconstruction fidelity or artifact levels.

C3one line summary

A stepped-grating structured-illumination method recovers high-frequency X-ray information via Fourier decomposition to achieve 2.2-fold resolution improvement in projection images and integrates with tomography.

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-06-10T01:09:56.731435Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a3e7d39605bb32ff35af4913867915401277a66a6fe82d2afcaa61a916ae3b8

Aliases

arxiv: 2602.18343 · arxiv_version: 2602.18343v4 · doi: 10.48550/arxiv.2602.18343 · pith_short_12: DI7H2OLALOZS · pith_short_16: DI7H2OLALOZS7422 · pith_short_8: DI7H2OLA

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/DI7H2OLALOZS74226SITQZ4RKQ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 1a3e7d39605bb32ff35af4913867915401277a66a6fe82d2afcaa61a916ae3b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6e26a8a8fbbabbe4a4106fe93ee572e1387f8af74f54c24bc4ec0e645e93186",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2026-02-20T16:51:44Z",
    "title_canon_sha256": "9af298dad076a88a44888d01aee13463cea92383c3b2d6d1efabfed2cd4f38e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.18343",
    "kind": "arxiv",
    "version": 4
  }
}