Pith Number

pith:JOADOQQ7

pith:2010:JOADOQQ7U36XAXZ2O7JVEJ3NJV

not attested not anchored not stored refs pending

Are C-rich ultra iron poor stars also He-rich?

Andre Maeder, Cristina Chiappini, Cyril Georgy, Georges Meynet, Patrick Eggenberger, Raphael Hirschi, Sylvia Ekstrom

arxiv:1004.5024 v1 · 2010-04-28 · 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{JOADOQQ7U36XAXZ2O7JVEJ3NJV}

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	2026-05-18T02:07:45.588060Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b8037421fa6fd705f3a77d352276d4d61031e089e3b72e8238fb7b3260b694b

Aliases

arxiv: 1004.5024 · arxiv_version: 1004.5024v1 · doi: 10.48550/arxiv.1004.5024 · pith_short_12: JOADOQQ7U36X · pith_short_16: JOADOQQ7U36XAXZ2 · pith_short_8: JOADOQQ7

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/JOADOQQ7U36XAXZ2O7JVEJ3NJV \
  | 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: 4b8037421fa6fd705f3a77d352276d4d61031e089e3b72e8238fb7b3260b694b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f356e15bd018dcc791fb7e4bf324519204e73ae597f2b4c57cadf1710c54a20",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-04-28T13:18:55Z",
    "title_canon_sha256": "46f58a15fa8ff2602d574cb75dd906a6691be471bea330907cb7405a752163bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.5024",
    "kind": "arxiv",
    "version": 1
  }
}