Pith Number

pith:6DYT4XTS

pith:2012:6DYT4XTSHXQLXICAEPEWROARUA

not attested not anchored not stored refs pending

Spatial variation in the fine-structure constant -- new results from VLT/UVES

F. Elliot Koch, John K. Webb, Julian A. King, Matthew B. Bainbridge, Michael R. Wilczynska, Michael T. Murphy, Robert F. Carswell, Victor V. Flambaum

arxiv:1202.4758 v1 · 2012-02-21 · astro-ph.CO · gr-qc · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6DYT4XTSHXQLXICAEPEWROARUA}

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.

Cited by

3 papers in Pith

New constraints on cosmic anisotropy from galaxy clusters using an improved dipole fitting method

The Confrontation between General Relativity and Experiment

Revisiting the Constancy of the Speed of Light: Galaxy Cluster Mass Bias Implications

Receipt and verification

First computed	2026-05-18T03:56:35.111890Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0f13e5e723de0bba04023c968b811a00602fb0e928a29d6e11e05b644534cb1

Aliases

arxiv: 1202.4758 · arxiv_version: 1202.4758v1 · doi: 10.48550/arxiv.1202.4758 · pith_short_12: 6DYT4XTSHXQL · pith_short_16: 6DYT4XTSHXQLXICA · pith_short_8: 6DYT4XTS

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/6DYT4XTSHXQLXICAEPEWROARUA \
  | 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: f0f13e5e723de0bba04023c968b811a00602fb0e928a29d6e11e05b644534cb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "25737307e97563802c82f3d6b0254451610abc3c1a0c22e8984e80c8d9c39062",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-02-21T21:00:02Z",
    "title_canon_sha256": "ab4fb532f146fe6d0a53767eff5d7797d9395f3625274eed41f75cb6ea9e11f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.4758",
    "kind": "arxiv",
    "version": 1
  }
}