Pith Number

pith:CDZBPA2Y

pith:2000:CDZBPA2YC56QMENME73CKE3VMK

not attested not anchored not stored refs pending

HeII Recombination Lines From the First Luminous Objects

Martin J. Rees (Cambridge Univ), S. Peng Oh, Zoltan Haiman (Princeton Univ)

arxiv:astro-ph/0007351 v3 · 2000-07-24 · 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{CDZBPA2YC56QMENME73CKE3VMK}

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

Extreme outflow velocities and weak UV emission lines indicate quasars shedding their dust cocoons

Receipt and verification

First computed	2026-07-04T16:16:56.556750Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10f2178358177d0611ac27f625137562a3f9f2adfc2b51a14c537be037ddecf3

Aliases

arxiv: astro-ph/0007351 · arxiv_version: astro-ph/0007351v3 · doi: 10.48550/arxiv.astro-ph/0007351 · pith_short_12: CDZBPA2YC56Q · pith_short_16: CDZBPA2YC56QMENM · pith_short_8: CDZBPA2Y

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/CDZBPA2YC56QMENME73CKE3VMK \
  | 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: 10f2178358177d0611ac27f625137562a3f9f2adfc2b51a14c537be037ddecf3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13526a4f6e077fd34abf0508160324f634fad13c741f63c97c1cc035bc0ef45b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-07-24T16:18:24Z",
    "title_canon_sha256": "9de2c8bda3632e9794a68d881f6552d6d50ed1690ba37e36ba66ec53772181ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0007351",
    "kind": "arxiv",
    "version": 3
  }
}