Pith Number

pith:MCFQH4XT

pith:2013:MCFQH4XTJXSCQM53KRLSR5OQ7S

not attested not anchored not stored refs pending

Not-So-Simple Stellar Populations in the Intermediate-age Large Magellanic Cloud Star Clusters NGC 1831 and NGC 1868

Chengyuan Li, Licai Deng, Richard de Grijs

arxiv:1312.4939 v1 · 2013-12-17 · 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{MCFQH4XTJXSCQM53KRLSR5OQ7S}

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	2026-05-18T01:45:44.990753Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

608b03f2f34de42833bb545728f5d0fcbc89adcb81c528c841978b233bb82e55

Aliases

arxiv: 1312.4939 · arxiv_version: 1312.4939v1 · doi: 10.48550/arxiv.1312.4939 · pith_short_12: MCFQH4XTJXSC · pith_short_16: MCFQH4XTJXSCQM53 · pith_short_8: MCFQH4XT

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/MCFQH4XTJXSCQM53KRLSR5OQ7S \
  | 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: 608b03f2f34de42833bb545728f5d0fcbc89adcb81c528c841978b233bb82e55

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09f20e9ba5f521cf531adad02857f4e8a5ed360676b6200b88505da52dc9f375",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-12-17T03:30:48Z",
    "title_canon_sha256": "b5a2fe152bff6ea01c2395da3bc14d6e3c427225afd0fdc0a288eb0a607a18ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.4939",
    "kind": "arxiv",
    "version": 1
  }
}