Pith Number

pith:7HUDR3PE

pith:2012:7HUDR3PEWLIXQ2QGF2T7MIXZFX

not attested not anchored not stored refs pending

Structural Parameters for Globular Clusters in the Outer Halo of M31

2, (2) Graduate University of Chinese Academy of Sciences, 3), 3) ((1) National Astronomical Observatories, (3) Key Laboratory of Optical Astronomy, Beijing, China, China), Chinese Academy of Sciences, Jun Ma (1, National Astronomical Observatories, Shijingshan District, Song Wang (1

arxiv:1203.5588 v1 · 2012-03-26 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7HUDR3PEWLIXQ2QGF2T7MIXZFX}

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	2026-05-18T01:58:01.939162Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9e838ede4b2d1786a062ea7f622f92df79548f64993e0f022efc8bd22bc8b3d

Aliases

arxiv: 1203.5588 · arxiv_version: 1203.5588v1 · doi: 10.48550/arxiv.1203.5588 · pith_short_12: 7HUDR3PEWLIX · pith_short_16: 7HUDR3PEWLIXQ2QG · pith_short_8: 7HUDR3PE

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/7HUDR3PEWLIXQ2QGF2T7MIXZFX \
  | 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: f9e838ede4b2d1786a062ea7f622f92df79548f64993e0f022efc8bd22bc8b3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c163b11703fe056478b927a7d744b384d0a58ed955efa1af8de8ccaee92fcb8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-03-26T06:50:20Z",
    "title_canon_sha256": "b61f8d5339f587a563e20def7345b1b8da06c76f19337d8d51d581604eb4b8e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.5588",
    "kind": "arxiv",
    "version": 1
  }
}