Pith Number

pith:OMZO3QN7

pith:1998:OMZO3QN73DQDZ4RIDBKW35IBVF

not attested not anchored not stored refs pending

Evolutionary calculations of carbon dredge-up in helium envelope white dwarfs

2-4, (2) Institut d'Estudis Espacials de Catalunya, (3) Departament de F\'isica i Enginyeria Nuclear (UPC), Astronomy, Avda. V\'ictor Balaguer, C/Gran Capit\`a, CSIC Research Unit, Edifici Nexus-201, James MacDonald (1), Jordi Jos\'e (3) ((1) Department of Physics, Margarita Hernanz (2), s/n), University of Delaware

arxiv:astro-ph/9803121 v1 · 1998-03-10 · 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{OMZO3QN73DQDZ4RIDBKW35IBVF}

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	2026-05-18T01:08:58.741699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7332edc1bfd8e03cf22818556df501a964575a39a9a7c3557fc010e9a4d7e8e7

Aliases

arxiv: astro-ph/9803121 · arxiv_version: astro-ph/9803121v1 · doi: 10.48550/arxiv.astro-ph/9803121 · pith_short_12: OMZO3QN73DQD · pith_short_16: OMZO3QN73DQDZ4RI · pith_short_8: OMZO3QN7

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/OMZO3QN73DQDZ4RIDBKW35IBVF \
  | 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: 7332edc1bfd8e03cf22818556df501a964575a39a9a7c3557fc010e9a4d7e8e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b331de966875a526ca161c33aba6e0a288a0e790825e982e81cb18f7ff3e5f40",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-03-10T23:43:01Z",
    "title_canon_sha256": "cd357757778a405e6aa52faf85d8b1e2a0a88eefc545f9266dea0a2937d916f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9803121",
    "kind": "arxiv",
    "version": 1
  }
}