Pith Number

pith:IBRB5XTS

pith:2010:IBRB5XTSHIUVGGZWGWD2Y4LLT3

not attested not anchored not stored refs pending

Ages and Luminosities of Young SMC/LMC Star Clusters and the recent Star Formation History of the Clouds

Andreas Koch, Eva K. Grebel, Katharina Glatt

arxiv:1004.1247 v1 · 2010-04-08 · 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{IBRB5XTSHIUVGGZWGWD2Y4LLT3}

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	2026-05-18T02:08:08.107354Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40621ede723a29531b363587ac716b9ee2a0c5f5bb5ebba2aaa13d872dcc68bc

Aliases

arxiv: 1004.1247 · arxiv_version: 1004.1247v1 · doi: 10.48550/arxiv.1004.1247 · pith_short_12: IBRB5XTSHIUV · pith_short_16: IBRB5XTSHIUVGGZW · pith_short_8: IBRB5XTS

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/IBRB5XTSHIUVGGZWGWD2Y4LLT3 \
  | 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: 40621ede723a29531b363587ac716b9ee2a0c5f5bb5ebba2aaa13d872dcc68bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44130f59c5abe00998cd76ece7e7beda5a8e38bbdd80a724fb881f8412327bfb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-04-08T05:45:32Z",
    "title_canon_sha256": "00adcc666d71ed943b7717eede95dbdd459da05b97fec3138f04b3b3dc0a8019"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.1247",
    "kind": "arxiv",
    "version": 1
  }
}