Pith Number

pith:RIRQ7FXR

pith:2016:RIRQ7FXRLOH65U4KBTEAVAGHPP

not attested not anchored not stored refs pending

The LAMOST spectroscopic survey of star clusters in M31. II. Metallicities, ages and masses

Cao Zihuang, Chen Bingqiu, Fan Zhou, Hou Yonghui, Huang Yang, Huo Zhiying, Liu Gaochao, Liu Xiaowei, Ren Juanjuan, Shi Jianrong, Tian Zhijia, Wang Chun, Wang Yuefei, Xiang Maosheng, Yuan Haibo, Zhang Huawei, Zhang Yong

arxiv:1605.08128 v1 · 2016-05-26 · 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{RIRQ7FXRLOH65U4KBTEAVAGHPP}

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	2026-05-18T01:00:05.798650Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a230f96f15b8feed38a0cc80a80c77bd237330b0206651fff03cde7bfe903ca

Aliases

arxiv: 1605.08128 · arxiv_version: 1605.08128v1 · doi: 10.48550/arxiv.1605.08128 · pith_short_12: RIRQ7FXRLOH6 · pith_short_16: RIRQ7FXRLOH65U4K · pith_short_8: RIRQ7FXR

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/RIRQ7FXRLOH65U4KBTEAVAGHPP \
  | 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: 8a230f96f15b8feed38a0cc80a80c77bd237330b0206651fff03cde7bfe903ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "346907ec42282e8a393db6eab85ca6493624ae515877950b3e86b08f19bdb4e1",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-05-26T02:48:23Z",
    "title_canon_sha256": "f6710c606b7f1ebb886445cd98e0d69af88c8b05aa7243128493781ae41ea79f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.08128",
    "kind": "arxiv",
    "version": 1
  }
}