Pith Number

pith:RZYIYED2

pith:2009:RZYIYED2YBJAFJH3JMDAE6HABG

not attested not anchored not stored refs pending

An investigation of the luminosity-metallicity relation for a large sample of low-metallicity emission-line galaxies

2), (2) Main Astronomical Observatory, (3) Instituto de Astrofisica de Andalucia, 4), (4) Department of Astronomy, (5) Astronomisches Rechen-Institut am Zentrum fuer Astronomie, 6), (6) University of Goettingen, Bonn, Germany, Germany), Goettingen, Granada, Heidelberg, H. T. Meyer (5, K. J. Fricke (1) ((1) Max-Planck-Institute for Radioastronomy, Kyiv, N. G. Guseva (1, P. Papaderos (3, Space Physics, Spain, Sweden, Ukraine, Uppsala, Uppsala University, Y. I. Izotov (1

arxiv:0908.2539 v1 · 2009-08-18 · 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{RZYIYED2YBJAFJH3JMDAE6HABG}

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	2026-05-18T00:14:48.039619Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e708c107ac05202a4fb4b060278e00981165b07907236976fe8243426285abc

Aliases

arxiv: 0908.2539 · arxiv_version: 0908.2539v1 · doi: 10.48550/arxiv.0908.2539 · pith_short_12: RZYIYED2YBJA · pith_short_16: RZYIYED2YBJAFJH3 · pith_short_8: RZYIYED2

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/RZYIYED2YBJAFJH3JMDAE6HABG \
  | 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: 8e708c107ac05202a4fb4b060278e00981165b07907236976fe8243426285abc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ddc880e5108c2ac341e6bcf5e688ee784a4600685b00b9a728907bdbbceef057",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-08-18T10:39:03Z",
    "title_canon_sha256": "3b14bce0f5f0dd4e490b76f62dbc0a9243149520e8f7ce0d2855d855ebbbe59e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.2539",
    "kind": "arxiv",
    "version": 1
  }
}