Pith Number

pith:LJ2DXZS7

pith:1994:LJ2DXZS7RTEZNAHVBPQHDOJAZ2

not attested not anchored not stored refs pending

A Singularity-Free Cosmological Model with a Conformally Coupled Scalar Field

F.I. Cooperstock, S.S. Bayin, V. Faraoni

arxiv:astro-ph/9402033 v1 · 1994-02-13 · astro-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{LJ2DXZS7RTEZNAHVBPQHDOJAZ2}

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	2026-05-18T04:38:05.014279Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a743be65f8cc99680f50be071b920ceb004c3391c6ebe5e063a0c712c89b73f

Aliases

arxiv: astro-ph/9402033 · arxiv_version: astro-ph/9402033v1 · doi: 10.48550/arxiv.astro-ph/9402033 · pith_short_12: LJ2DXZS7RTEZ · pith_short_16: LJ2DXZS7RTEZNAHV · pith_short_8: LJ2DXZS7

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/LJ2DXZS7RTEZNAHVBPQHDOJAZ2 \
  | 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: 5a743be65f8cc99680f50be071b920ceb004c3391c6ebe5e063a0c712c89b73f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf001d20f92dd6128b14afab6020c9d83c674b0f639180e6daaa33cf222e25b8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1994-02-13T21:40:49Z",
    "title_canon_sha256": "2a4d17d6ededb936480da12735762f3cc188ced5f113b703df28bccf21553163"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9402033",
    "kind": "arxiv",
    "version": 1
  }
}