Pith Number

pith:POZ7DHWL

pith:2008:POZ7DHWLKPDOONJGU3ATDCYEJ5

not attested not anchored not stored refs pending

Cepheid Mass-loss and the Pulsation -- Evolutionary Mass Discrepancy

Stefan C. Keller

arxiv:0801.1342 v1 · 2008-01-09 · 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{POZ7DHWLKPDOONJGU3ATDCYEJ5}

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

Pulsation periods reveal tension between theoretical and empirical radii for classical Cepheids in eclipsing binary systems

Receipt and verification

First computed	2026-07-04T17:08:22.571420Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bb3f19ecb53c6e73526a6c1318b044f56318d7f9a9e3af77e09acb194ab040b

Aliases

arxiv: 0801.1342 · arxiv_version: 0801.1342v1 · doi: 10.48550/arxiv.0801.1342 · pith_short_12: POZ7DHWLKPDO · pith_short_16: POZ7DHWLKPDOONJG · pith_short_8: POZ7DHWL

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/POZ7DHWLKPDOONJGU3ATDCYEJ5 \
  | 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: 7bb3f19ecb53c6e73526a6c1318b044f56318d7f9a9e3af77e09acb194ab040b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f9d53fe6445c238e9243d0e7b2488129a559fae9c281d2e1d93977ca950a0be",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-01-09T01:06:59Z",
    "title_canon_sha256": "c3be685b0bee3688c67c8afb3378806c17e6aa1eb0c42e1086bcd40748d74d89"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.1342",
    "kind": "arxiv",
    "version": 1
  }
}