Pith Number

pith:LPE3E5OJ

pith:2009:LPE3E5OJUR6SFMZSP4A5LMYDN7

not attested not anchored not stored refs pending

Evolution and colors of helium-core white dwarf stars with high-metallicity progenitors

A. D. Romero, A. H. C\'orsico, E. Garc\'ia-Berro, J. A. Panei, L. G. Althaus, M. M. Miller Bertolami, R. D. Rohrmann

arxiv:0905.1939 v1 · 2009-05-12 · 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{LPE3E5OJUR6SFMZSP4A5LMYDN7}

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	2026-05-18T02:13:39.822763Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5bc9b275c9a47d22b3327f01d5b3036fdc389d2be2c8ad50c14739e77545a537

Aliases

arxiv: 0905.1939 · arxiv_version: 0905.1939v1 · doi: 10.48550/arxiv.0905.1939 · pith_short_12: LPE3E5OJUR6S · pith_short_16: LPE3E5OJUR6SFMZS · pith_short_8: LPE3E5OJ

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/LPE3E5OJUR6SFMZSP4A5LMYDN7 \
  | 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: 5bc9b275c9a47d22b3327f01d5b3036fdc389d2be2c8ad50c14739e77545a537

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5190fa893e84966801afb6bbfdd3845daadfd3da151dea5bc55aedc56efdb768",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-05-12T19:10:23Z",
    "title_canon_sha256": "2ce9ec7cbea5703255f48a06ba76e82dc2adbd119ba256ea1721bf35f5ee337d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1939",
    "kind": "arxiv",
    "version": 1
  }
}