Pith Number

pith:4X2PJ7Y3

pith:2026:4X2PJ7Y3D2J5UXKM7RF73DZDL2

not attested not anchored not stored refs resolved

Single-Device VOC Fingerprinting via Polarization-Selective Anisotropic BeS-Clad Silicon Microring Resonator

Md Kawsar Alam, Shoumik Debnath, Sudipta Saha

Anisotropic BeS cladding on a silicon microring enables TE and TM modes to produce a two-dimensional optical fingerprint that distinguishes acetone, isoprene, 4-hydroxyhexenal, 2-propenal, and benzene via differential resonance shifts.

arxiv:2605.15139 v1 · 2026-05-14 · physics.optics

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\usepackage{pith}
\pithnumber{4X2PJ7Y3D2J5UXKM7RF73DZDL2}

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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

The resulting dual-polarization response forms a two-dimensional optical fingerprint that distinguishes all five biomarkers without requiring a sensor array or multiple functionalized resonators.

C2weakest assumption

The first-principles optical constants for BeS accurately represent the real anisotropic permittivity tensor when the material is deposited as a thin cladding on silicon, and that the simulated resonance shifts will match fabricated devices.

C3one line summary

References

49 extracted · 49 resolved · 0 Pith anchors

[1] Abernethy and Gareth M 2003

[2] Arduengo, III, Anthony J. and H. V. Rasika Dias and Richard L. Harlow and Michael Kline , title =. 1992 , volume = 1992

[3] and Siegfried F 1994

[4] and Zuccaccia, Daniele and Kovacevic, Anes and Chianese, Anthony R 2005

[5] Communication from the European Commission to the European Council and the European Parliament: 20 20 by 2020: Europe's climate change opportunity , year = 2020

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-17T21:40:25.574978Z
Last reissued	2026-05-17T21:57:18.894863Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

e5f4f4ff1b1e93da5d4cfc4bfd8f235ebcfa02ef78026821b767792279f39414

Aliases

arxiv: 2605.15139 · arxiv_version: 2605.15139v1 · pith_short_12: 4X2PJ7Y3D2J5 · pith_short_16: 4X2PJ7Y3D2J5UXKM · pith_short_8: 4X2PJ7Y3

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/4X2PJ7Y3D2J5UXKM7RF73DZDL2 \
  | 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: e5f4f4ff1b1e93da5d4cfc4bfd8f235ebcfa02ef78026821b767792279f39414

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f362bfba7bd4154ad335dd942833e64232212a21a6a2bc6808cfb07fffe1884a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2026-05-14T17:45:36Z",
    "title_canon_sha256": "09ce59ad1bf5d11cf2fbf6d6fddcad89aed79285017ea78fc21dc33883ff7b3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.15139",
    "kind": "arxiv",
    "version": 1
  }
}