Pith Number

pith:X7Y3YTX2

pith:2018:X7Y3YTX27UUXL6XOMOQJZVFFHL

not attested not anchored not stored refs pending

Variable stars in Terzan 5: additional evidence of multi-age and multi-iron stellar populations

1), 2 Bologna University, 3 UCLA, 4 University of Groningen, 5 Millennium Institute of Astrophysics, 6), 6 Pontificia Universidad Catolica de Chile, 7 University of Tokyo, A. Mucciarelli (2, B. Lanzoni (2, Bologna, Chile, D. Massari (4), E. Dalessandro (1), F.R. Ferraro (2, G. Fiorentino (1), Italy, Japan), L. Origlia (1), N. Matsunaga (7) - (1 INAF-OAS, R.M. Rich (3), R.R. Contreras (5, Santiago, The Netherlands, USA

arxiv:1812.04325 v1 · 2018-12-11 · astro-ph.GA · 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{X7Y3YTX27UUXL6XOMOQJZVFFHL}

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	2026-05-17T23:58:32.528740Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bff1bc4efafd2975faee63a09cd4a53acaf1ac3568ccdac10a2c08a567f66205

Aliases

arxiv: 1812.04325 · arxiv_version: 1812.04325v1 · doi: 10.48550/arxiv.1812.04325 · pith_short_12: X7Y3YTX27UUX · pith_short_16: X7Y3YTX27UUXL6XO · pith_short_8: X7Y3YTX2

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/X7Y3YTX27UUXL6XOMOQJZVFFHL \
  | 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: bff1bc4efafd2975faee63a09cd4a53acaf1ac3568ccdac10a2c08a567f66205

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1567ca665d5eae417c27f56c2ff4801bf444d5c387622db8fcccb076446cb0fc",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-12-11T10:49:47Z",
    "title_canon_sha256": "f973ae385f139568b2b3ec6b6c790e8ecf799d9d9bf37d926b8ad65701bf3d31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.04325",
    "kind": "arxiv",
    "version": 1
  }
}