Pith Number

pith:J2TOQBP5

pith:2000:J2TOQBP5IFSVZVZLH5G4RMOGUO

not attested not anchored not stored refs pending

Exploring the Leo II dSph I.: The Variable Star Content

M. H. Siegel, S. R. Majewski

arxiv:astro-ph/0004099 v1 · 2000-04-07 · 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{J2TOQBP5IFSVZVZLH5G4RMOGUO}

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	2026-05-18T01:40:48.080204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ea6e805fd41655cd72b3f4dc8b1c6a3b5036d1178e097e5b9cbf9412029c541

Aliases

arxiv: astro-ph/0004099 · arxiv_version: astro-ph/0004099v1 · doi: 10.48550/arxiv.astro-ph/0004099 · pith_short_12: J2TOQBP5IFSV · pith_short_16: J2TOQBP5IFSVZVZL · pith_short_8: J2TOQBP5

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/J2TOQBP5IFSVZVZLH5G4RMOGUO \
  | 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: 4ea6e805fd41655cd72b3f4dc8b1c6a3b5036d1178e097e5b9cbf9412029c541

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53b4f387332e7c2028656ff78a103dd8c15935285b584ef3740fbd919f45dc7b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-04-07T04:01:43Z",
    "title_canon_sha256": "77f15b5cd12411129286366c24b430eedaba05485e630b51e0ccc8356b55071e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0004099",
    "kind": "arxiv",
    "version": 1
  }
}