Pith Number

pith:VQF7BYJ4

pith:2000:VQF7BYJ4PCVT2C2VWTVTCI6UVV

not attested not anchored not stored refs pending

The 12C/13C-ratio in cool carbon stars

F.L. Schoeier, H. Olofsson

arxiv:astro-ph/0005360 v1 · 2000-05-17 · 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{VQF7BYJ4PCVT2C2VWTVTCI6UVV}

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.

Cited by

1 paper in Pith

Stellar evolution along the AGB as revealed by the shape of Miras' visual light curves

Receipt and verification

First computed	2026-07-04T14:10:22.520004Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac0bf0e13c78ab3d0b55b4eb3123d4ad5eed0dad066f52ad9632fb3c3616ae6d

Aliases

arxiv: astro-ph/0005360 · arxiv_version: astro-ph/0005360v1 · doi: 10.48550/arxiv.astro-ph/0005360 · pith_short_12: VQF7BYJ4PCVT · pith_short_16: VQF7BYJ4PCVT2C2V · pith_short_8: VQF7BYJ4

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/VQF7BYJ4PCVT2C2VWTVTCI6UVV \
  | 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: ac0bf0e13c78ab3d0b55b4eb3123d4ad5eed0dad066f52ad9632fb3c3616ae6d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38fee35545f169ae3f87c4ef93c807afbec253975e0e768b10a2a9e18a724b4f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-05-17T14:11:11Z",
    "title_canon_sha256": "b670e3e4596f6dab28faa889ab80028b86e5cf320382a0e25c717e10b70688d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0005360",
    "kind": "arxiv",
    "version": 1
  }
}