Pith Number

pith:5V3BSBS2

pith:2003:5V3BSBS2YMAIXUSXHT6TC7VEDS

not attested not anchored not stored refs pending

Calibration of the Distance Scale from Cepheids

Jesper Storm, Pascal Fouque, Wolfgang Gieren

arxiv:astro-ph/0301291 v1 · 2003-01-15 · 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{5V3BSBS2YMAIXUSXHT6TC7VEDS}

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	2026-05-18T01:40:39.586308Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed7619065ac3008bd2573cfd317ea41c938d73da3a0b8aa97cc2a61a6ef752ea

Aliases

arxiv: astro-ph/0301291 · arxiv_version: astro-ph/0301291v1 · doi: 10.48550/arxiv.astro-ph/0301291 · pith_short_12: 5V3BSBS2YMAI · pith_short_16: 5V3BSBS2YMAIXUSX · pith_short_8: 5V3BSBS2

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/5V3BSBS2YMAIXUSXHT6TC7VEDS \
  | 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: ed7619065ac3008bd2573cfd317ea41c938d73da3a0b8aa97cc2a61a6ef752ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc1f7db661c9f33656a3d6ae7d05ac3dfad54c3923ce88d3415ebca4322eed7d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-01-15T13:39:15Z",
    "title_canon_sha256": "39d326c075ccd966a2c89e53fdf2b858395aff7cb14cb03c563b474e4bb0eb76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0301291",
    "kind": "arxiv",
    "version": 1
  }
}