Pith Number

pith:IDXBSQVR

pith:2010:IDXBSQVRM77JGGMWCQI4TOTAVJ

not attested not anchored not stored refs pending

Is there further evidence for spatial variation of fundamental constants?

J. A. King, J. C. Berengut, J. K. Webb, S. J. Curran, V. V. Flambaum

arxiv:1009.0591 v1 · 2010-09-03 · astro-ph.CO · hep-ph · nucl-th · physics.atom-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IDXBSQVRM77JGGMWCQI4TOTAVJ}

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.

Receipt and verification

First computed	2026-05-18T04:20:03.825438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40ee1942b167fe9319961411c9ba60aa63fbfb3dbe637f7c576776e26b701cff

Aliases

arxiv: 1009.0591 · arxiv_version: 1009.0591v1 · doi: 10.48550/arxiv.1009.0591 · pith_short_12: IDXBSQVRM77J · pith_short_16: IDXBSQVRM77JGGMW · pith_short_8: IDXBSQVR

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/IDXBSQVRM77JGGMWCQI4TOTAVJ \
  | 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: 40ee1942b167fe9319961411c9ba60aa63fbfb3dbe637f7c576776e26b701cff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf9227618a3410123d5425d99c915848e46ca99075610ac428f24a8501a19bac",
    "cross_cats_sorted": [
      "hep-ph",
      "nucl-th",
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-09-03T05:37:30Z",
    "title_canon_sha256": "a31a5c4da329ea26c0e15e7a1c5dc94074cfc9e9bd8a6f12638d627b24398410"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.0591",
    "kind": "arxiv",
    "version": 1
  }
}