Pith Number

pith:QEWOOEMR

pith:2017:QEWOOEMR7HWBJO36T4GOL5UPTA

not attested not anchored not stored refs pending

Concluding Henrietta Leavitt's Work on Classical Cepheids in the Magellanic System and Other Updates of the OGLE Collection of Variable Stars

A. Udalski, D. Skowron, I. Soszy\'nski, J. Skowron, K. Ulaczyk, \L. Wyrzykowski, M. K. Szyma\'nski, M. Pawlak, P. Mr\'oz, P. Pietrukowicz, R. Poleski, S. Kozlowski

arxiv:1706.09452 v2 · 2017-06-28 · astro-ph.SR · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QEWOOEMR7HWBJO36T4GOL5UPTA}

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	2026-05-18T00:02:36.339049Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

812ce71191f9ec14bb7e9f0ce5f68f9823c6d4f0d3e4d6f80d38d2c33b73c92a

Aliases

arxiv: 1706.09452 · arxiv_version: 1706.09452v2 · doi: 10.48550/arxiv.1706.09452 · pith_short_12: QEWOOEMR7HWB · pith_short_16: QEWOOEMR7HWBJO36 · pith_short_8: QEWOOEMR

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/QEWOOEMR7HWBJO36T4GOL5UPTA \
  | 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: 812ce71191f9ec14bb7e9f0ce5f68f9823c6d4f0d3e4d6f80d38d2c33b73c92a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "744c934e8572204bb99b3c122b6cfaa3250abb4c61bec842c546c2aa06788937",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-06-28T19:31:00Z",
    "title_canon_sha256": "e7a0585c2099782fa2ac5c9cbd1749cb54472ea9e875076c404bbe089032121a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.09452",
    "kind": "arxiv",
    "version": 2
  }
}