Pith Number

pith:IDEU5NGW

pith:1997:IDEU5NGWQ7JWUE32AW7AXIZWUS

not attested not anchored not stored refs pending

Cepheid Period-Radius and Period-Luminosity Relations and the Distance to the LMC

Matias Gomez, Pascal Fouque, Wolfgang P. Gieren

arxiv:astro-ph/9710161 v1 · 1997-10-15 · 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{IDEU5NGWQ7JWUE32AW7AXIZWUS}

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	2026-05-18T02:40:35.141580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40c94eb4d687d36a137a05be0ba336a499dc1e9a4353c0936c6f2d7069b1d954

Aliases

arxiv: astro-ph/9710161 · arxiv_version: astro-ph/9710161v1 · doi: 10.48550/arxiv.astro-ph/9710161 · pith_short_12: IDEU5NGWQ7JW · pith_short_16: IDEU5NGWQ7JWUE32 · pith_short_8: IDEU5NGW

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/IDEU5NGWQ7JWUE32AW7AXIZWUS \
  | 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: 40c94eb4d687d36a137a05be0ba336a499dc1e9a4353c0936c6f2d7069b1d954

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2b671859e2846a6278ea5ecee0224023a31ac6e877b7dba8c5cb88bd36384cf",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-10-15T14:17:34Z",
    "title_canon_sha256": "a799c96fa37562cfba6056c6ac3a26fb47abd0b8a7909706249626739b72b20e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9710161",
    "kind": "arxiv",
    "version": 1
  }
}