Pith Number

pith:QHDQQWCD

pith:2012:QHDQQWCDI24SCTE73KJU34T6TU

not attested not anchored not stored refs pending

Constraining fundamental constant evolution with HI and OH lines

(2) National Radio Astronomy Observatory, (3) University of Colorado, (4) Max-Planck-Institut fur Radioastronomie), C. L. Carilli (2), G. I. Langston (2), India, J. T. Stocke (3), K. L. Menten (4) ((1) National Centre for Radio Astrophysics, N. Kanekar (1), USA

arxiv:1201.3372 v1 · 2012-01-16 · astro-ph.CO · gr-qc · hep-ex

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QHDQQWCDI24SCTE73KJU34T6TU}

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

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.

Cited by

1 paper in Pith

The Confrontation between General Relativity and Experiment

Receipt and verification

First computed	2026-05-18T01:58:48.544595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81c708584346b9214c9fda934df27e9d3fd310f3fa8759b2d8f1c7df02af5a28

Aliases

arxiv: 1201.3372 · arxiv_version: 1201.3372v1 · doi: 10.48550/arxiv.1201.3372 · pith_short_12: QHDQQWCDI24S · pith_short_16: QHDQQWCDI24SCTE7 · pith_short_8: QHDQQWCD

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/QHDQQWCDI24SCTE73KJU34T6TU \
  | 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: 81c708584346b9214c9fda934df27e9d3fd310f3fa8759b2d8f1c7df02af5a28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "939ca12c974a61de466f9eb626ac7417483039d1e73bc303a597ff939772ea24",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ex"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-01-16T21:05:46Z",
    "title_canon_sha256": "d89532e3e29f408658d58744d58a9b68a7a08cf4ff72bc691b8c513c3889cd6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.3372",
    "kind": "arxiv",
    "version": 1
  }
}