Pith. sign in
Pith Number

pith:Y7PX4GCN

pith:2000:Y7PX4GCNRC4GFCX32LLDYSQG2H
not attested not anchored not stored refs pending

[O II] as a tracer of current star formation

2, (2) Harvard-Smithsonian Center for Astrophysics, 3), (3) Space Science Department of ESA, (4) Leiden Observatory), Daniel Fabricant (2) ((1) Kapteyn Astronomical Institute, ESTEC, Marijn Franx (4), Rolf A. Jansen (1

arxiv:astro-ph/0012485 v1 · 2000-12-22 · astro-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{Y7PX4GCNRC4GFCX32LLDYSQG2H}

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

Receipt and verification
First computed 2026-07-04T16:17:50.631085Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

c7df7e184d88b8628afbd2d63c4a06d1e876e0fd881273c661c089aafc730090

Aliases

arxiv: astro-ph/0012485 · arxiv_version: astro-ph/0012485v1 · doi: 10.48550/arxiv.astro-ph/0012485 · pith_short_12: Y7PX4GCNRC4G · pith_short_16: Y7PX4GCNRC4GFCX3 · pith_short_8: Y7PX4GCN
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/Y7PX4GCNRC4GFCX32LLDYSQG2H \
  | 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: c7df7e184d88b8628afbd2d63c4a06d1e876e0fd881273c661c089aafc730090
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "f91f79884434f313ef2c81ba1815770b2c3ddfad29b4ebab61774b9a2e786a7b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-12-22T20:05:27Z",
    "title_canon_sha256": "20b691aa0ae596d2e1ad83180f1e94e6a61b1567258b476993158b99c501f57e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0012485",
    "kind": "arxiv",
    "version": 1
  }
}