Pith Number

pith:NPPQIBA2

pith:2011:NPPQIBA2R2LVTYJ72DZA4M7FFZ

not attested not anchored not stored refs pending

The present-day mass function of the Quintuplet cluster

A. Stolte, B. Hu{\ss}mann, M. Gennaro, W. Brandner

arxiv:1108.4331 v1 · 2011-08-22 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NPPQIBA2R2LVTYJ72DZA4M7FFZ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T04:14:55.686810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bdf04041a8e9759e13fd0f20e33e52e55828e89efc49afce4304be5b1bea4c9

Aliases

arxiv: 1108.4331 · arxiv_version: 1108.4331v1 · doi: 10.48550/arxiv.1108.4331 · pith_short_12: NPPQIBA2R2LV · pith_short_16: NPPQIBA2R2LVTYJ7 · pith_short_8: NPPQIBA2

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/NPPQIBA2R2LVTYJ72DZA4M7FFZ \
  | 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: 6bdf04041a8e9759e13fd0f20e33e52e55828e89efc49afce4304be5b1bea4c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5093f2ecad72b6531414b34b64d649377d241606f483af5c5e21a28fd6ad82d1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-08-22T14:45:17Z",
    "title_canon_sha256": "62e26b93c306032642d571dcf67f90469834e44f05452726e7085ef5c4b023e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.4331",
    "kind": "arxiv",
    "version": 1
  }
}