Pith Number

pith:OGDLRDQT

pith:1996:OGDLRDQT7WGWK5KJK3TK6DY4AW

not attested not anchored not stored refs pending

The Opacity of the Lyman Alpha Forest and Implications for Omega_{baryon} and the Ionizing Background

D. H. Weinberg, J. Miralda-Escude, J. P. Ostriker, L. Hernquist, M. Rauch, N. Katz, R. Cen, T. A. Barlow, W. L. W. Sargent

arxiv:astro-ph/9612245 v1 · 1996-12-31 · 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{OGDLRDQT7WGWK5KJK3TK6DY4AW}

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

1 paper in Pith

Machine Learning Techniques for Astrophysics and Cosmology: Lyman-$\alpha$ forest

Receipt and verification

First computed	2026-07-04T15:48:11.921742Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7186b88e13fd8d65754956e6af0f1c059b5d78d592c24440545567a370cd99e2

Aliases

arxiv: astro-ph/9612245 · arxiv_version: astro-ph/9612245v1 · doi: 10.48550/arxiv.astro-ph/9612245 · pith_short_12: OGDLRDQT7WGW · pith_short_16: OGDLRDQT7WGWK5KJ · pith_short_8: OGDLRDQT

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/OGDLRDQT7WGWK5KJK3TK6DY4AW \
  | 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: 7186b88e13fd8d65754956e6af0f1c059b5d78d592c24440545567a370cd99e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5185286fd84dd2da6e60de1cc6b6900fe52139e750f1a4a3ebeea26940114986",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-12-31T18:23:05Z",
    "title_canon_sha256": "e4f9e97dad896707f7bceba52dfb1c46e07412f80ee7a0f0cd7ba84c81bfa7d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9612245",
    "kind": "arxiv",
    "version": 1
  }
}