Pith Number

pith:BOXH6IQV

pith:2011:BOXH6IQVHGH37PBVYEVV6FELRS

not attested not anchored not stored refs pending

The massive star binary fraction in young open clusters - III. IC 2944 and the Cen OB2 association

E. Gosset, G. James, H. Sana

arxiv:1109.2899 v1 · 2011-09-13 · astro-ph.SR · 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{BOXH6IQVHGH37PBVYEVV6FELRS}

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	2026-05-18T04:13:06.733298Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0bae7f2215398fbfbc35c12b5f148b8ca8d4201cc3445c3d8db73490afd5cc28

Aliases

arxiv: 1109.2899 · arxiv_version: 1109.2899v1 · doi: 10.48550/arxiv.1109.2899 · pith_short_12: BOXH6IQVHGH3 · pith_short_16: BOXH6IQVHGH37PBV · pith_short_8: BOXH6IQV

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/BOXH6IQVHGH37PBVYEVV6FELRS \
  | 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: 0bae7f2215398fbfbc35c12b5f148b8ca8d4201cc3445c3d8db73490afd5cc28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e7543c6483db70724d7280aaaba75ac6315bba2296a0211f8b0de8318026d12",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-09-13T20:00:03Z",
    "title_canon_sha256": "79449eeb174cfeea70bc988687b356a903365080fd6a31f1c67aecdde74fc392"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.2899",
    "kind": "arxiv",
    "version": 1
  }
}