Pith Number

pith:7OPD463P

pith:2023:7OPD463PBSEBQ2BJEIC3MQJ2OS

not attested not anchored not stored refs pending

Probing the Galactic halo with RR Lyrae stars -- IV. On the Oosterhoff dichotomy of RR Lyrae stars

Bingqiu Chen, Gaochao Liu, Haijun Tian, Huawei Zhang, Peng Zhang, Sarah Ann Bird, Shan Zhang, Timothy C. Beers, Xinyi Li, Yang Huang, Zongfei Lv

arxiv:2309.02828 v4 · 2023-09-06 · 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{7OPD463PBSEBQ2BJEIC3MQJ2OS}

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	2026-07-05T06:50:17.195510Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb9e3e7b6f0c881868292205b6413a74a500ab344135128cba7a8aa2cd76d236

Aliases

arxiv: 2309.02828 · arxiv_version: 2309.02828v4 · doi: 10.48550/arxiv.2309.02828 · pith_short_12: 7OPD463PBSEB · pith_short_16: 7OPD463PBSEBQ2BJ · pith_short_8: 7OPD463P

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/7OPD463PBSEBQ2BJEIC3MQJ2OS \
  | 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: fb9e3e7b6f0c881868292205b6413a74a500ab344135128cba7a8aa2cd76d236

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9301c4bfa5093ba5434da6c3cf30201cb06f58ddda3fd7bf154ff030e56d551",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2023-09-06T08:24:44Z",
    "title_canon_sha256": "b368eed27f3738785f642e941cabb8015bcdb1fb18f49f710174bab1d6dfa2f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2309.02828",
    "kind": "arxiv",
    "version": 4
  }
}