Pith Number

pith:I5UXFQCU

pith:2002:I5UXFQCUW4PIIO27KUEMLTZT4K

not attested not anchored not stored refs pending

Helium variation due to self-pollution among Globular Cluster stars: consequences on the horizontal branch morphology

F. D'Antona (1), Italy), Italy (2) IASF-CNR, Italy (3) INAF, J. Montalban (1), MontePorzio, OAP, Padova, P. Ventura (1), R. Gratton (3) ((1)INAF-OAR, Roma, V. Caloi (2)

arxiv:astro-ph/0209331 v1 · 2002-09-17 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I5UXFQCUW4PIIO27KUEMLTZT4K}

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.

Cited by

2 papers in Pith

Multiple populations along the asymptotic giant branch: a Gaia+APOGEE study of 22 Galactic globular clusters

Decomposing cool stellar populations with H-band spectral fluctuations: Long-period variable stars in NGC 5128 and carbon stars in NGC 5102

Receipt and verification

First computed	2026-07-04T16:30:47.872338Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

476972c054b71e843b5f5508c5cf33e28a80e5aeca7a3aa9d8c390c17dd50fb8

Aliases

arxiv: astro-ph/0209331 · arxiv_version: astro-ph/0209331v1 · doi: 10.48550/arxiv.astro-ph/0209331 · pith_short_12: I5UXFQCUW4PI · pith_short_16: I5UXFQCUW4PIIO27 · pith_short_8: I5UXFQCU

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/I5UXFQCUW4PIIO27KUEMLTZT4K \
  | 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: 476972c054b71e843b5f5508c5cf33e28a80e5aeca7a3aa9d8c390c17dd50fb8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "932bfe36ff6c587c40d06a308d8cfecfe0128deacb0c2d021c27198f32156b9a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-09-17T13:51:58Z",
    "title_canon_sha256": "5d152cdc1072ea4fe7a4de7106a748432f81cf6ad853f96c80ed1a497dd62276"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0209331",
    "kind": "arxiv",
    "version": 1
  }
}