Pith Number

pith:PCQ5YQRL

pith:2026:PCQ5YQRLSKDBEXRCHIS5PF43AF

not attested not anchored not stored refs resolved

Rotational energy levels in the ground vibrational state of methane with kHz-level accuracy from comb-referenced double-resonance and Lamb-dip spectroscopies

Aleksandra Foltynowicz, Hajima Inaba, Hiroyuki Sasada, Isak Silander, Kevin K. Lehmann, Sho Okubo, Vinicius Silva de Oliveira

Methane ground-state rotational levels up to J=12 are now known to kHz accuracy

arxiv:2605.13060 v1 · 2026-05-13 · physics.chem-ph

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\usepackage{pith}
\pithnumber{PCQ5YQRLSKDBEXRCHIS5PF43AF}

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Record completeness

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2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

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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

A Hamiltonian fit to the data yields GS term values with rotational numbers up to J = 12 with kHz level accuracy.

C2weakest assumption

The effective Hamiltonian expansion contains all relevant interaction terms up to the order needed for J=12 and that systematic errors in the frequency measurements remain below the claimed kHz uncertainty.

C3one line summary

Ground-state rotational term values of methane up to J=12 determined with kHz accuracy via frequency-comb-referenced double-resonance and Lamb-dip spectroscopies.

References

16 extracted · 16 resolved · 0 Pith anchors

[1] R. W. P. Drever, J. L. Hall, F. V. Kowalski, J. Hough, G. M. Ford, A. J. Munley, and H. Ward, Appl. Phys. B 31, 97 (1983) 1983

[2] G. Sobon, T. Martynkien, P. Mergo, L. Rutkowski, and A. Foltynowicz, Opt. Lett. 42, 1748 (2017) 2017

[3] Silva de Oliveira, A 2025

[4] K. Kefala, V. Boudon, S. N. Yurchenko, and J. Tennyson, J. Quant. Spectr. Rad. Transf. 316, 108897 (2024) 2024

[5] J. Tennyson et al., J. Quant. Spectr. Rad. Transf. 326, 109083 (2024) 2024

Receipt and verification

First computed	2026-05-18T03:08:59.124902Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78a1dc422b9286125e223a25d7979b017693199f396948a2778ff22317a83bbc

Aliases

arxiv: 2605.13060 · arxiv_version: 2605.13060v1 · doi: 10.48550/arxiv.2605.13060 · pith_short_12: PCQ5YQRLSKDB · pith_short_16: PCQ5YQRLSKDBEXRC · pith_short_8: PCQ5YQRL

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/PCQ5YQRLSKDBEXRCHIS5PF43AF \
  | 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: 78a1dc422b9286125e223a25d7979b017693199f396948a2778ff22317a83bbc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f55e2cf493417eb21f4f5dac8a0ffcb54efa4a8fedd283afed1458a0d1c1d8b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2026-05-13T06:33:29Z",
    "title_canon_sha256": "39761e1ff0806f3ca3986d95ae03414621fa0fa4425da37bbd763d9de12b64b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.13060",
    "kind": "arxiv",
    "version": 1
  }
}