Pith Number

pith:FDGMHLHA

pith:2011:FDGMHLHAY2HWGOYR54T3JCWBW2

not attested not anchored not stored refs pending

Sensitivity of Transitions in Internal Rotor Molecules to a Possible Variation of the Proton-to-Electron Mass Ratio

Hendrick L. Bethlem, Isabelle Kleiner, Li-Hong Xu, Paul Jansen, Wim Ubachs

arxiv:1109.5076 v1 · 2011-09-23 · physics.chem-ph · astro-ph.CO · physics.atom-ph

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FDGMHLHAY2HWGOYR54T3JCWBW2}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T04:00:49.270213Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28ccc3ace0c68f633b11ef27b48ac1b68b11ce0cd414be8a7a9d8b0d62360008

Aliases

arxiv: 1109.5076 · arxiv_version: 1109.5076v1 · doi: 10.48550/arxiv.1109.5076 · pith_short_12: FDGMHLHAY2HW · pith_short_16: FDGMHLHAY2HWGOYR · pith_short_8: FDGMHLHA

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/FDGMHLHAY2HWGOYR54T3JCWBW2 \
  | 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: 28ccc3ace0c68f633b11ef27b48ac1b68b11ce0cd414be8a7a9d8b0d62360008

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66f7c54445d1a110aeb506dfd0104ea06b7311dd1a300117c56efeb8069a867e",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2011-09-23T13:45:20Z",
    "title_canon_sha256": "daaf22daccab4e1098508325d84d64d189c8d0716ab92157ae108366c0430f0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.5076",
    "kind": "arxiv",
    "version": 1
  }
}