Pith Number

pith:CGN4T4X2

pith:2002:CGN4T4X2FE4QTCO7T3LIGVZDFZ

not attested not anchored not stored refs pending

Modeling the emission line sequence of H II galaxies

(2) Main Astronomical Observatory, France, G. Stasinska (1), Kyiv, Ukraine), Y.I.Izotov (2) ((1) Observatoire de Meudon

arxiv:astro-ph/0209050 v1 · 2002-09-03 · 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{CGN4T4X2FE4QTCO7T3LIGVZDFZ}

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

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs

Receipt and verification

First computed	2026-07-04T16:30:43.745540Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

119bc9f2fa29390989df9ed68357232e6f9aa48ed8f3c6907b5a9a808e079753

Aliases

arxiv: astro-ph/0209050 · arxiv_version: astro-ph/0209050v1 · doi: 10.48550/arxiv.astro-ph/0209050 · pith_short_12: CGN4T4X2FE4Q · pith_short_16: CGN4T4X2FE4QTCO7 · pith_short_8: CGN4T4X2

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/CGN4T4X2FE4QTCO7T3LIGVZDFZ \
  | 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: 119bc9f2fa29390989df9ed68357232e6f9aa48ed8f3c6907b5a9a808e079753

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc78f9fa42e63a25ccc92a9ecc5d8dc338770d7ace32944113c295d36f8216b7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-09-03T13:37:16Z",
    "title_canon_sha256": "daca0a19318541207668b6948ca25c48f3b64d6989fc7e46c8ddf109d196ee3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0209050",
    "kind": "arxiv",
    "version": 1
  }
}