Pith Number

pith:TFRBZOHV

pith:2007:TFRBZOHVA74E3YSJX2U52L5VJ5

not attested not anchored not stored refs pending

The Chemical Compositions of the Type II Cepheids -- The BL Her and W Vir Variables

David L. Lambert (1) ((1) The W.J. McDonald Observatory (2) Indian Institute of Astrophysics), Sunetra Giridhar (2), Thomas Maas (1)

arxiv:0706.2029 v1 · 2007-06-14 · 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{TFRBZOHVA74E3YSJX2U52L5VJ5}

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

Rogue Ones: Orbital census of Galactic Cepheids and their Anomalies

Receipt and verification

First computed	2026-05-18T04:29:33.909620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99621cb8f507f84de249bea9dd2fb54f6aa5b94f0985be629495fcaa8977bfb6

Aliases

arxiv: 0706.2029 · arxiv_version: 0706.2029v1 · doi: 10.48550/arxiv.0706.2029 · pith_short_12: TFRBZOHVA74E · pith_short_16: TFRBZOHVA74E3YSJ · pith_short_8: TFRBZOHV

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/TFRBZOHVA74E3YSJX2U52L5VJ5 \
  | 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: 99621cb8f507f84de249bea9dd2fb54f6aa5b94f0985be629495fcaa8977bfb6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5eeb1adc7146adce5e93c39bbd577e347dbfc963bd8f9a61dc65208a2237acae",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-06-14T03:21:20Z",
    "title_canon_sha256": "d9596cdf8597703bd86d6c9514a993915c8ce9b92822ceed0877ad148a782f66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0706.2029",
    "kind": "arxiv",
    "version": 1
  }
}