Pith Number

pith:QPPNRRJD

pith:2013:QPPNRRJDXYMFK4SWXX6WEQH373

not attested not anchored not stored refs pending

Ultraviolet properties of Galactic globular clusters with GALEX

B. Lanzoni, E. Dalessandro, F. R. Ferraro, R. P. Schiavon, R. W. O' Connell, S. T. Sohn

arxiv:1301.4329 v1 · 2013-01-18 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QPPNRRJDXYMFK4SWXX6WEQH373}

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	2026-05-18T03:36:05.654487Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83ded8c523be18557256bdfd6240fbfece309a012d2df5b84e73304904051133

Aliases

arxiv: 1301.4329 · arxiv_version: 1301.4329v1 · doi: 10.48550/arxiv.1301.4329 · pith_short_12: QPPNRRJDXYMF · pith_short_16: QPPNRRJDXYMFK4SW · pith_short_8: QPPNRRJD

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/QPPNRRJDXYMFK4SWXX6WEQH373 \
  | 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: 83ded8c523be18557256bdfd6240fbfece309a012d2df5b84e73304904051133

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6ac9b9ce2aeaea031594a484bd23172e90eae30f9a14a9727e305bdb8474bc2",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-01-18T09:36:50Z",
    "title_canon_sha256": "878cf642996994bc2c90825dd6ee68c98123b6cd414c9cfd00f9ee1be89be8ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.4329",
    "kind": "arxiv",
    "version": 1
  }
}