Pith Number

pith:JBSDO53Z

pith:2012:JBSDO53Z7YAQQV2W6KKLSZRU5Q

not attested not anchored not stored refs pending

Variable Stars in the Cetus dSph Galaxy: Population Gradients and Connections with the Star Formation History

A. Aparicio, C. Gallart, E.D. Skillman, E.J. Bernard, G. Bono, G. Fiorentino, I. Drozdovsky, M. Monelli, P.B. Stetson, S. Cassisi

arxiv:1201.2821 v1 · 2012-01-13 · astro-ph.SR · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JBSDO53Z7YAQQV2W6KKLSZRU5Q}

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	2026-05-18T01:58:49.717852Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4864377779fe01085756f294b96634ec29fd3f3c6c262f6ade4414cb0ee83189

Aliases

arxiv: 1201.2821 · arxiv_version: 1201.2821v1 · doi: 10.48550/arxiv.1201.2821 · pith_short_12: JBSDO53Z7YAQ · pith_short_16: JBSDO53Z7YAQQV2W · pith_short_8: JBSDO53Z

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/JBSDO53Z7YAQQV2W6KKLSZRU5Q \
  | 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: 4864377779fe01085756f294b96634ec29fd3f3c6c262f6ade4414cb0ee83189

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b0de0221d239566e69204492d510d7eba036b47823c55e16ab1d2ef2d856bff",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-01-13T12:22:20Z",
    "title_canon_sha256": "17e420a64d4b7404b2db6f1e96d0aacfefb31e8e54bd785bc2203240bea6c960"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.2821",
    "kind": "arxiv",
    "version": 1
  }
}