Pith Number

pith:WEMVLQCG

pith:2009:WEMVLQCGG4VB3AWQU2F2GX4JK2

not attested not anchored not stored refs pending

The fraction of binary systems in the core of five Galactic open clusters

A. Sollima, B. Lanzoni, F. Fusi Pecci, F.R. Ferraro, G. Beccari, J.A. Carballo-Bello

arxiv:0909.1277 v1 · 2009-09-07 · 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{WEMVLQCGG4VB3AWQU2F2GX4JK2}

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	2026-05-18T02:11:58.956148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b11955c046372a1d82d0a68ba35f895691f2e51674c28e7b9dfaf92339eb2e27

Aliases

arxiv: 0909.1277 · arxiv_version: 0909.1277v1 · doi: 10.48550/arxiv.0909.1277 · pith_short_12: WEMVLQCGG4VB · pith_short_16: WEMVLQCGG4VB3AWQ · pith_short_8: WEMVLQCG

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/WEMVLQCGG4VB3AWQU2F2GX4JK2 \
  | 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: b11955c046372a1d82d0a68ba35f895691f2e51674c28e7b9dfaf92339eb2e27

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec9a84cce93b0e0ecccc32131504ede35f07d969bcf08d6219e98e5018e3b22d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-09-07T16:22:11Z",
    "title_canon_sha256": "61c7199b39b49207001d0f971649e1b6a8240a5141f50fb7297912b911e480b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.1277",
    "kind": "arxiv",
    "version": 1
  }
}