Pith Number

pith:KW4WDUA7

pith:2008:KW4WDUA7WIC3RSKXVELX6QBG22

not attested not anchored not stored refs pending

Models for Pop I stars: implications for age determinations

Andre Maeder, Georges Meynet, Nami Mowlavi, Patrick Eggenberger

arxiv:0811.2339 v1 · 2008-11-14 · 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{KW4WDUA7WIC3RSKXVELX6QBG22}

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	2026-05-18T02:15:21.106293Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55b961d01fb205b8c957a9177f4026d6b9313e12b379b0dded63f471e93bbf46

Aliases

arxiv: 0811.2339 · arxiv_version: 0811.2339v1 · doi: 10.48550/arxiv.0811.2339 · pith_short_12: KW4WDUA7WIC3 · pith_short_16: KW4WDUA7WIC3RSKX · pith_short_8: KW4WDUA7

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/KW4WDUA7WIC3RSKXVELX6QBG22 \
  | 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: 55b961d01fb205b8c957a9177f4026d6b9313e12b379b0dded63f471e93bbf46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bcd202c0ea1b1a5ef6f41c58bf83fa5fb385f63a5dbede1db48772ff70d973d9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-11-14T13:34:46Z",
    "title_canon_sha256": "cd8ee81be20d69017781db8b2ef1d4fdc451fff0e65e430f738435faff9ccc46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.2339",
    "kind": "arxiv",
    "version": 1
  }
}