Pith Number

pith:LGBHR5CM

pith:2009:LGBHR5CMGGNSZFRVSQ3NOL2EKY

not attested not anchored not stored refs pending

Emission line taxonomy and the nature of AGN-looking galaxies in the SDSS

Abilio Mateus, Grazyna Stasinska, Marielli Schlickmann, Natalia Vale Asari, Roberto Cid Fernandes, William Schoenell

arxiv:0912.1376 v1 · 2009-12-08 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LGBHR5CMGGNSZFRVSQ3NOL2EKY}

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	2026-05-18T02:10:25.812766Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

598278f44c319b2c96359436d72f44563b647a21d18ab2254bd1d846318f485b

Aliases

arxiv: 0912.1376 · arxiv_version: 0912.1376v1 · doi: 10.48550/arxiv.0912.1376 · pith_short_12: LGBHR5CMGGNS · pith_short_16: LGBHR5CMGGNSZFRV · pith_short_8: LGBHR5CM

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/LGBHR5CMGGNSZFRVSQ3NOL2EKY \
  | 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: 598278f44c319b2c96359436d72f44563b647a21d18ab2254bd1d846318f485b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb1a6f11222965af57b5a7adc74551585ac1373db8719439cb496e827df2344a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-12-08T00:15:52Z",
    "title_canon_sha256": "ceaf9f9151d0258725f4bf080c6339f79b248c5b9ca2b1a114893ab2cd241d31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.1376",
    "kind": "arxiv",
    "version": 1
  }
}