Pith Number

pith:7UNZPHGI

pith:1995:7UNZPHGIZSLOAZ32M3Q54OMZEQ

not attested not anchored not stored refs pending

Evolution of the Ly$\alpha$ forest: a consistent picture

Jan P. M\"ucket, Patrick Petitjean, Ronald E. Kates, R\"udiger Riediger

arxiv:astro-ph/9508129 v1 · 1995-08-28 · 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{7UNZPHGIZSLOAZ32M3Q54OMZEQ}

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	2026-07-04T23:57:16.329975Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd1b979cc8cc96e0677a66e1de39992434402cc163949606c64ce1959f0d68dd

Aliases

arxiv: astro-ph/9508129 · arxiv_version: astro-ph/9508129v1 · doi: 10.48550/arxiv.astro-ph/9508129 · pith_short_12: 7UNZPHGIZSLO · pith_short_16: 7UNZPHGIZSLOAZ32 · pith_short_8: 7UNZPHGI

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/7UNZPHGIZSLOAZ32M3Q54OMZEQ \
  | 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: fd1b979cc8cc96e0677a66e1de39992434402cc163949606c64ce1959f0d68dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5801ac4bf9915af8b44adba53edf658ad21286a5547cf11192651ddadc41fb01",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-08-28T14:36:56Z",
    "title_canon_sha256": "31b65a59857e51e04fd9ae6a1ac5dad546b8cbd31862625f201d5431780a5cf9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9508129",
    "kind": "arxiv",
    "version": 1
  }
}