Pith Number

pith:VK6OS4XB

pith:2001:VK6OS4XBQ2W5PEHP4PX6ZJ5LMN

not attested not anchored not stored refs pending

HST STIS Observations of PG 0946+301: the Highest Quality UV Spectrum of a BALQSO

Anuradha Koratkar, Ari Laor, Bev Wills, Bob Becker, D. Michael Crenshaw, Kirk T. Korista, Martijn de Kool, Max Pettini, Michael Brotherton, Nahum Arav, Norman Murray, Paul Green, Richard F. Green, Sally A. Laurent-Muehleisen, Smita Mathur, Vesa T. Junkkarinen, Wil van Breugel, Wim de Vries, W. N. Brandt

arxiv:astro-ph/0107414 v1 · 2001-07-20 · 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{VK6OS4XBQ2W5PEHP4PX6ZJ5LMN}

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	2026-07-04T16:23:44.843879Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aabce972e186add790efe3efeca7ab634edef96b0168b845c6e5633d4ded75f1

Aliases

arxiv: astro-ph/0107414 · arxiv_version: astro-ph/0107414v1 · doi: 10.48550/arxiv.astro-ph/0107414 · pith_short_12: VK6OS4XBQ2W5 · pith_short_16: VK6OS4XBQ2W5PEHP · pith_short_8: VK6OS4XB

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/VK6OS4XBQ2W5PEHP4PX6ZJ5LMN \
  | 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: aabce972e186add790efe3efeca7ab634edef96b0168b845c6e5633d4ded75f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7034dfd5c18a9e41503801218e63b7975d241fcb1a37e7936c9ba711eb050d8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-07-20T20:55:27Z",
    "title_canon_sha256": "d881a930eae02f9dd92da5756471a4421d209e8a1585ed25952c6f69c8b61aab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0107414",
    "kind": "arxiv",
    "version": 1
  }
}