Pith Number

pith:7TS6Y5NN

pith:1995:7TS6Y5NNUCGG7M5OMJZ5RSC2MQ

not attested not anchored not stored refs pending

THE OPTICAL GRAVITATIONAL LENSING EXPERIMENT. THE CATALOG OF PERIODIC VARIABLE STARS IN THE GALACTIC BULGE. I. PERIODIC VARIABLES IN THE CENTER OF THE BAADE'S WINDOW.

A. Udalski, J. Kaluzny, M. Kubiak, M. Mateo, M. Szymanski, W. Krzeminski

arxiv:astro-ph/9501022 v1 · 1995-01-09 · 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{7TS6Y5NNUCGG7M5OMJZ5RSC2MQ}

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	2026-05-18T01:07:42.813749Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fce5ec75ada08c6fb3ae6273d8c85a6432fe4c92487a2ba3876fe1e0078024fb

Aliases

arxiv: astro-ph/9501022 · arxiv_version: astro-ph/9501022v1 · doi: 10.48550/arxiv.astro-ph/9501022 · pith_short_12: 7TS6Y5NNUCGG · pith_short_16: 7TS6Y5NNUCGG7M5O · pith_short_8: 7TS6Y5NN

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/7TS6Y5NNUCGG7M5OMJZ5RSC2MQ \
  | 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: fce5ec75ada08c6fb3ae6273d8c85a6432fe4c92487a2ba3876fe1e0078024fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "25381f7b5619a8634cd07656dbd93fed7a6480f507038d2df1d8ecc4a85cbf99",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-01-09T17:13:55Z",
    "title_canon_sha256": "dc7c4087684f652ea9a58558d155923877463a549ef334f4c3170a8f20ab8df2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9501022",
    "kind": "arxiv",
    "version": 1
  }
}