Pith Number

pith:V33ZD5IJ

pith:2015:V33ZD5IJNKQBMMPSI3CJJB74B2

not attested not anchored not stored refs pending

A long-period Cepheid variable in the starburst cluster VdBH222

C. Gonz\'alez-Fern\'andez, F. Lewis, I. Negueruela, J. S. Clark, M. E. Lohr, P. Roche, R. Dorda

arxiv:1510.06643 v1 · 2015-10-22 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{V33ZD5IJNKQBMMPSI3CJJB74B2}

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	2026-05-18T01:24:51.387516Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aef791f5096aa01631f246c49487fc0e81cf907b4c9947641b1fa0a990f84968

Aliases

arxiv: 1510.06643 · arxiv_version: 1510.06643v1 · doi: 10.48550/arxiv.1510.06643 · pith_short_12: V33ZD5IJNKQB · pith_short_16: V33ZD5IJNKQBMMPS · pith_short_8: V33ZD5IJ

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/V33ZD5IJNKQBMMPSI3CJJB74B2 \
  | 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: aef791f5096aa01631f246c49487fc0e81cf907b4c9947641b1fa0a990f84968

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c8d41b9b94a3c968e631015b29c5d43bd3c80755997313a108b3c80ed3e7c79",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-10-22T14:29:05Z",
    "title_canon_sha256": "7407c7ee2ffa82dc121e06cbc4cdcf2f450a688e4bcf830f31766ecb3436a955"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.06643",
    "kind": "arxiv",
    "version": 1
  }
}