Pith Number

pith:NWFWNUY2

pith:2004:NWFWNUY2AH3BOMC2XE6K7FQ74X

not attested not anchored not stored refs pending

Bouncing Universes with Varying Constants

Dagny Kimberly, Joao Magueijo, John D. Barrow

arxiv:astro-ph/0406369 v1 · 2004-06-16 · astro-ph · gr-qc · 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{NWFWNUY2AH3BOMC2XE6K7FQ74X}

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

2 papers in Pith

Modified Gravity Theories on a Nutshell: Inflation, Bounce and Late-time Evolution

Modified Gravity and Cosmology

Receipt and verification

First computed	2026-07-04T16:44:01.781076Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d8b66d31a01f617305ab93caf961fe5f7006f2b6a9762211317c3e066da6c0e

Aliases

arxiv: astro-ph/0406369 · arxiv_version: astro-ph/0406369v1 · doi: 10.48550/arxiv.astro-ph/0406369 · pith_short_12: NWFWNUY2AH3B · pith_short_16: NWFWNUY2AH3BOMC2 · pith_short_8: NWFWNUY2

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/NWFWNUY2AH3BOMC2XE6K7FQ74X \
  | 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: 6d8b66d31a01f617305ab93caf961fe5f7006f2b6a9762211317c3e066da6c0e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bec267af31b6e44a8a1162f288ca6e5da036fbe1a7d7d093b5083bc6126cabf3",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-06-16T17:03:38Z",
    "title_canon_sha256": "987b2286fc1e02d9cf6ab6e74737850373bedbfdc707c31bd7eabb057dccf21d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0406369",
    "kind": "arxiv",
    "version": 1
  }
}