Pith Number

pith:UCGNZW6C

pith:1995:UCGNZW6CNLFWL2ZSFO7GYUEYI5

not attested not anchored not stored refs pending

The Size and Nature of Lyman alpha Forest Clouds Probed by QSO Pairs and Groups

Arlin P. S. Crotts (Columbia), Jill Bechtold (Steward Observatory), Robert C. Duncan (Univ of Texas), Yihu Fang (Columbia)

arxiv:astro-ph/9510112 v1 · 1995-10-20 · 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{UCGNZW6CNLFWL2ZSFO7GYUEYI5}

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

Uncertainty-Aware Deep Learning for the Ly$\alpha$ Forest: CNN-Based Absorber Detection and Characterization

Receipt and verification

First computed	2026-07-04T15:58:08.361935Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a08cdcdbc26acb65eb322bbe6c50984757ba2220e06943088261a546e39ba8fb

Aliases

arxiv: astro-ph/9510112 · arxiv_version: astro-ph/9510112v1 · doi: 10.48550/arxiv.astro-ph/9510112 · pith_short_12: UCGNZW6CNLFW · pith_short_16: UCGNZW6CNLFWL2ZS · pith_short_8: UCGNZW6C

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/UCGNZW6CNLFWL2ZSFO7GYUEYI5 \
  | 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: a08cdcdbc26acb65eb322bbe6c50984757ba2220e06943088261a546e39ba8fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30d9dd730cf1c75c3178c23097a56689e89a8b98d0a0eb6e1d22b090f1d647f7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-10-20T20:27:27Z",
    "title_canon_sha256": "af0bf96950f72965ecafb26d2d3c457d3d6aed6a7de46692dbbb4e0ed6162afc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9510112",
    "kind": "arxiv",
    "version": 1
  }
}