Pith Number

pith:7LDDXQSB

pith:2018:7LDDXQSBANRJEBHOTOWVJZPEZW

not attested not anchored not stored refs pending

The search for multiple populations in Magellanic Cloud Clusters IV: Coeval multiple stellar populations in the young star cluster NGC 1978

A. Mucciarelli, C. Lardo, C. Usher, D. Geisler, D. Mackey, E. Dalessandro, F. Niederhofer, I. Cabrera-Ziri, I. Platais, K. Hollyhead, M. Hilker, M. Salaris, N. Bastian, N. Kacharov, S. Cassisi, S. Larsen, S. Martocchia, V. Kozhurina-Platais

arxiv:1804.04141 v1 · 2018-04-11 · 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{7LDDXQSBANRJEBHOTOWVJZPEZW}

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	2026-05-18T00:17:03.388628Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fac63bc24103629204ee9bad54e5e4cd848f47b67a15d0dafaa94ebb2b208910

Aliases

arxiv: 1804.04141 · arxiv_version: 1804.04141v1 · doi: 10.48550/arxiv.1804.04141 · pith_short_12: 7LDDXQSBANRJ · pith_short_16: 7LDDXQSBANRJEBHO · pith_short_8: 7LDDXQSB

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/7LDDXQSBANRJEBHOTOWVJZPEZW \
  | 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: fac63bc24103629204ee9bad54e5e4cd848f47b67a15d0dafaa94ebb2b208910

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2da3314c2b34afdccb9a546b3a4901d2e8a8347e320e477adaf58187b8ca51ca",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-04-11T18:00:06Z",
    "title_canon_sha256": "fd40105708a496a6cd0fad2eaea48f4b926fa05164fb1254565f801fb7d48151"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.04141",
    "kind": "arxiv",
    "version": 1
  }
}