Pith Number

pith:U4WKBGFO

pith:2015:U4WKBGFOYXQWM23RATNIN44NA2

not attested not anchored not stored refs pending

Photometric Metallicity Calibration with SDSS and SCUSS and its Application to distant stars in the South Galactic Cap

Cuihua Du, Hu Zou, Jiali Wang, Jiayin Gu, Jundan Nie, Jun Ma, Michael Lesser, Shiyin Shen, Tianmeng Zhang, Xiaohui Fan, Xiyan Peng, Xu Zhou, Yingjie Jing, Yipeng Jing, Yunpeng Jia, Zhaoji Jiang, Zhenyu Wu, Zhimin Zhou, Zhou Fan

arxiv:1507.02054 v1 · 2015-07-08 · 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{U4WKBGFOYXQWM23RATNIN44NA2}

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	2026-05-18T01:35:44.668213Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a72ca098aec5e1666b7104da86f38d06bc9aa5590993c8298256a4be14e38bf4

Aliases

arxiv: 1507.02054 · arxiv_version: 1507.02054v1 · doi: 10.48550/arxiv.1507.02054 · pith_short_12: U4WKBGFOYXQW · pith_short_16: U4WKBGFOYXQWM23R · pith_short_8: U4WKBGFO

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/U4WKBGFOYXQWM23RATNIN44NA2 \
  | 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: a72ca098aec5e1666b7104da86f38d06bc9aa5590993c8298256a4be14e38bf4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d184a7c7d8315add15181db3f22fde1fe3626ba9c248e4f54d9c5c3c57b3762b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-07-08T07:46:38Z",
    "title_canon_sha256": "cc727919282ce49ad376bdc8f86b32bcafff63e086d4931209c1d5fb78e218be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.02054",
    "kind": "arxiv",
    "version": 1
  }
}