Pith Number

pith:YLGONERN

pith:2019:YLGONERNULIGE7HDSFK3PPESMI

not attested not anchored not stored refs pending

Improved BBN Constraints on the Variation of the Gravitational Constant

James Alvey, Malcolm Fairbairn, Miguel Escudero, Nashwan Sabti

arxiv:1910.10730 v2 · 2019-10-23 · astro-ph.CO · hep-ph · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YLGONERNULIGE7HDSFK3PPESMI}

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	2026-07-05T00:48:47.382077Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2cce6922da2d0627ce39155b7bc9262257366c12236190bb1a9bfa5367fe0cd

Aliases

arxiv: 1910.10730 · arxiv_version: 1910.10730v2 · doi: 10.48550/arxiv.1910.10730 · pith_short_12: YLGONERNULIG · pith_short_16: YLGONERNULIGE7HD · pith_short_8: YLGONERN

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/YLGONERNULIGE7HDSFK3PPESMI \
  | 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: c2cce6922da2d0627ce39155b7bc9262257366c12236190bb1a9bfa5367fe0cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c58bd4e3250b3f870a46d0e07cdeaa84720b6d3f239456a4ae03ee02a612d09e",
    "cross_cats_sorted": [
      "hep-ph",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-10-23T18:00:04Z",
    "title_canon_sha256": "e9a69f7267671b37956501f515bcbbb89bb46d9c08133a0ecf6a0d98f2ad16fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.10730",
    "kind": "arxiv",
    "version": 2
  }
}