Pith Number

pith:M7XITOBD

pith:2010:M7XITOBDWX6LNYSZAVDMUQFF2C

not attested not anchored not stored refs pending

Age and metallicity of star clusters in the Small Magellanic Cloud from integrated spectroscopy

(2) NAT, 3), (3) Universidade Estadual de Santa Cruz), Beatriz Barbuy (1), Bruno Dias (1), Leandro Kerber (1, Paula Coelho (2), Thais Idiart (1) ((1) IAG, Universidade Cruzeiro do Sul, Universidade de S\~ao Paulo

arxiv:1002.4301 v2 · 2010-02-23 · astro-ph.SR · 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{M7XITOBDWX6LNYSZAVDMUQFF2C}

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	2026-05-18T02:24:38.636049Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67ee89b823b5fcb6e2590546ca40a5d0af8c727bc6fb32e6413b1dcdb0ee9ad0

Aliases

arxiv: 1002.4301 · arxiv_version: 1002.4301v2 · doi: 10.48550/arxiv.1002.4301 · pith_short_12: M7XITOBDWX6L · pith_short_16: M7XITOBDWX6LNYSZ · pith_short_8: M7XITOBD

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/M7XITOBDWX6LNYSZAVDMUQFF2C \
  | 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: 67ee89b823b5fcb6e2590546ca40a5d0af8c727bc6fb32e6413b1dcdb0ee9ad0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ec88e0f6aee4e264b8721e3c1c7e5dfcba69f311179c87209453e15c1f128a5",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-02-23T11:44:54Z",
    "title_canon_sha256": "241456f2e818b6bbaf8bb9cac017d6bf99e49485dab129d4959a39f7eda9d940"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.4301",
    "kind": "arxiv",
    "version": 2
  }
}