Pith Number

pith:THBNZNOU

pith:1999:THBNZNOU2YAFGCDZXDJBHTUMXS

not attested not anchored not stored refs pending

Effects of a torsion field on Big Bang nucleosynthesis

Cambridge), Churchill College, M. Br\"uggen (Max-Planck-Institut fuer Astrophysik

arxiv:astro-ph/9906403 v1 · 1999-06-25 · astro-ph · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{THBNZNOU2YAFGCDZXDJBHTUMXS}

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	2026-05-18T01:40:13.001304Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99c2dcb5d4d600530879b8d213ce8cbca251bb7a07795863d62c20141400c463

Aliases

arxiv: astro-ph/9906403 · arxiv_version: astro-ph/9906403v1 · doi: 10.48550/arxiv.astro-ph/9906403 · pith_short_12: THBNZNOU2YAF · pith_short_16: THBNZNOU2YAFGCDZ · pith_short_8: THBNZNOU

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/THBNZNOU2YAFGCDZXDJBHTUMXS \
  | 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: 99c2dcb5d4d600530879b8d213ce8cbca251bb7a07795863d62c20141400c463

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a88436772722dc3b0435556117358334e5a654477f050dfb5af9730e8f3d27dc",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-06-25T10:15:23Z",
    "title_canon_sha256": "7d540e7429a983ca5dbfc1c11861611f97d492e31eb15e4a949d8c635e13ca12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9906403",
    "kind": "arxiv",
    "version": 1
  }
}