Pith Number

pith:N6WKE7M4

pith:1999:N6WKE7M4V35B7OC7PPEBRFOMH2

not attested not anchored not stored refs pending

Fine-tuning carbon-based life in the universe by the triple-alpha process in red giants

Attila Csoto (Eotvos University, Budapest), Garching), Heinz Oberhummer (Technical University, Helmut Schlattl (Max-Planck Institute for Astrophysics, Vienna)

arxiv:astro-ph/9908247 v1 · 1999-08-23 · astro-ph · nucl-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N6WKE7M4V35B7OC7PPEBRFOMH2}

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	2026-05-18T01:00:27.355805Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6faca27d9caefa1fb85f7bc81895cc3eb09dbac0f16b8af8cc2717f21161b85d

Aliases

arxiv: astro-ph/9908247 · arxiv_version: astro-ph/9908247v1 · doi: 10.48550/arxiv.astro-ph/9908247 · pith_short_12: N6WKE7M4V35B · pith_short_16: N6WKE7M4V35B7OC7 · pith_short_8: N6WKE7M4

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/N6WKE7M4V35B7OC7PPEBRFOMH2 \
  | 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: 6faca27d9caefa1fb85f7bc81895cc3eb09dbac0f16b8af8cc2717f21161b85d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ba417c253b2c914db06ba62dd105a5888b422861b2f1dc9192036c2791cea76",
    "cross_cats_sorted": [
      "nucl-th"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-08-23T16:33:22Z",
    "title_canon_sha256": "65496fed30311ca1e602872b28c6b8079d45dd4d228ffa35577efa6a16415960"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9908247",
    "kind": "arxiv",
    "version": 1
  }
}