Pith Number

pith:Z3GGYUD2

pith:2021:Z3GGYUD2NVK4FWZJSCHG2XRT2L

not attested not anchored not stored refs pending

A study of submillimeter methanol absorption toward PKS1830-211: Excitation, invariance of the proton-electron mass ratio, and systematics

1081 HV Amsterdam, ((1) Department of Space, (2) Department of Physics, (3) Max-Planck-Institut f"ur Radioastonomie, 4), (4) Astron. Dept., (5) National Centre for Radio Astrophysics, Astronomy, Auf dem H"ugel 69, Chalmers University of Technology, C. Henkel (3, D-53121 Bonn, De Boelelaan 1081, Earth, Environment, Germany, India), Jeddah 21589, King Abdulaziz University, K. M. Menten (3), N. Kanekar (5), Onsala Space Observatory, P.O. Box 80203, Pune 411007, Pune University, Saudi Arabia, SE-43992 Onsala, S. Muller (1), Sweden, Tata Institute of Fundamental Research, The Netherlands, Vrije Universiteit, W. Ubachs (2)

arxiv:2105.08015 v1 · 2021-05-17 · astro-ph.GA

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\usepackage{pith}
\pithnumber{Z3GGYUD2NVK4FWZJSCHG2XRT2L}

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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.

Receipt and verification

First computed	2026-07-05T03:02:53.664031Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cecc6c507a6d55c2db29908e6d5e33d2f41fb87bcd00ec8b004642e8414a474b

Aliases

arxiv: 2105.08015 · arxiv_version: 2105.08015v1 · doi: 10.48550/arxiv.2105.08015 · pith_short_12: Z3GGYUD2NVK4 · pith_short_16: Z3GGYUD2NVK4FWZJ · pith_short_8: Z3GGYUD2

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/Z3GGYUD2NVK4FWZJSCHG2XRT2L \
  | 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: cecc6c507a6d55c2db29908e6d5e33d2f41fb87bcd00ec8b004642e8414a474b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14b3ca2837a59217c4ffae6c6c05035e79db37343ffb0e6e9d0c6d25e2e36339",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-05-17T17:03:40Z",
    "title_canon_sha256": "7003bb68028a6dc3f0b69aa2d33bbb68d4ff8b04a07f31ee8733548494ce3bbe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.08015",
    "kind": "arxiv",
    "version": 1
  }
}