Pith Number

pith:JIHCN6HS

pith:2009:JIHCN6HSDUIDYO2I5Q6ZLHYY3P

not attested not anchored not stored refs pending

A slitless spectroscopic survey for Halpha emission-line objects in SMC clusters

Christophe Martayan (ESO-Chile, Dietrich Baade (ESO-HQ), GEPI), Juan Fabregat

arxiv:0909.2303 v1 · 2009-09-12 · astro-ph.CO · astro-ph.IM · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JIHCN6HSDUIDYO2I5Q6ZLHYY3P}

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	2026-05-18T02:11:48.645828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a0e26f8f21d103c3b48ec3d959f18dbe198eb6d6569895d7682429e561bb1f9

Aliases

arxiv: 0909.2303 · arxiv_version: 0909.2303v1 · doi: 10.48550/arxiv.0909.2303 · pith_short_12: JIHCN6HSDUID · pith_short_16: JIHCN6HSDUIDYO2I · pith_short_8: JIHCN6HS

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/JIHCN6HSDUIDYO2I5Q6ZLHYY3P \
  | 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: 4a0e26f8f21d103c3b48ec3d959f18dbe198eb6d6569895d7682429e561bb1f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c81880629689b3bd585a328fee620e6b5ff37f8702524a1a6a9703c8bca738e",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-09-12T04:46:59Z",
    "title_canon_sha256": "77b00ae34949328aa7ca8fa2efd23fc319912e05f04c37a8db08770fd4ca6301"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.2303",
    "kind": "arxiv",
    "version": 1
  }
}