Pith Number

pith:OGN4FDU7

pith:2012:OGN4FDU7S4OI4VCWRWBUNKL424

not attested not anchored not stored refs pending

The Baldwin effect in the narrow emission lines of AGNs

2), (2) Key Laboratory for Research in Galaxies, (3) Centro de Astrof\'isica de Valpara\'iso y Departamento de F\'isica y Astronom\'ia, C. Martin Gaskell (3), Cosmology, Facultad de Ciencias, Kai Zhang (1, Shanghai Astronomical Observatory, Technology of China, The University of Sciences, Ting-Gui Wang (1), Universidad de Valpara\'iso), Xiao-Bo Dong (1) ((1) Key Laboratory for Research in Galaxies

arxiv:1211.1113 v2 · 2012-11-06 · astro-ph.CO · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OGN4FDU7S4OI4VCWRWBUNKL424}

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	2026-05-18T01:53:25.283966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

719bc28e9f971c8e54568d8346a97cd727d6d73ad0eac2ba210acf319ff2c4cb

Aliases

arxiv: 1211.1113 · arxiv_version: 1211.1113v2 · doi: 10.48550/arxiv.1211.1113 · pith_short_12: OGN4FDU7S4OI · pith_short_16: OGN4FDU7S4OI4VCW · pith_short_8: OGN4FDU7

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/OGN4FDU7S4OI4VCWRWBUNKL424 \
  | 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: 719bc28e9f971c8e54568d8346a97cd727d6d73ad0eac2ba210acf319ff2c4cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83ed885efbcbef4a54634edbeaae2fc2044aba8e91ae540c6343fb00960cbb10",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-11-06T05:27:16Z",
    "title_canon_sha256": "663b8293f00a331fc4c02f4be6f15d9d0f3021dded8233f6a47ab31229fd2ef4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.1113",
    "kind": "arxiv",
    "version": 2
  }
}