Pith Number

pith:YVJJZVA2

pith:2011:YVJJZVA2OZGIBFZUE625TMDVIO

not attested not anchored not stored refs pending

The Cepheid mass discrepancy and pulsation-driven mass loss

Hilding R. Neilson, Matteo Cantiello, Norbert Langer (AIfA)

arxiv:1104.1638 v1 · 2011-04-08 · 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{YVJJZVA2OZGIBFZUE625TMDVIO}

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	2026-05-18T02:02:36.106150Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5529cd41a764c80973427b5d9b075439369cf09ccec5fba5cb6f2f2a1f08e94

Aliases

arxiv: 1104.1638 · arxiv_version: 1104.1638v1 · doi: 10.48550/arxiv.1104.1638 · pith_short_12: YVJJZVA2OZGI · pith_short_16: YVJJZVA2OZGIBFZU · pith_short_8: YVJJZVA2

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/YVJJZVA2OZGIBFZUE625TMDVIO \
  | 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: c5529cd41a764c80973427b5d9b075439369cf09ccec5fba5cb6f2f2a1f08e94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db21c4120fad353557ec8c3b38986f00bc602a267a33178c3aa1971255833e69",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-04-08T20:00:06Z",
    "title_canon_sha256": "9252ebdace92762e71f3049df0cfbd92ddbb13ad2068bed6ec09bf7a330b4a54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.1638",
    "kind": "arxiv",
    "version": 1
  }
}