Pith Number

pith:WYMZMXGS

pith:2007:WYMZMXGSQBB6DGNPHAY2AJWLCV

not attested not anchored not stored refs pending

The massive star binary fraction in young open clusters I. NGC 6231 revisited

E. Gosset, G. Rauw, H. Sana, N. Linder, Y. Naze

arxiv:0707.2847 v2 · 2007-07-19 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WYMZMXGSQBB6DGNPHAY2AJWLCV}

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	2026-07-05T01:57:42.759116Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b619965cd28043e199af3831a026cb154fa2fab4a945961d2d4b11d2db751236

Aliases

arxiv: 0707.2847 · arxiv_version: 0707.2847v2 · doi: 10.48550/arxiv.0707.2847 · pith_short_12: WYMZMXGSQBB6 · pith_short_16: WYMZMXGSQBB6DGNP · pith_short_8: WYMZMXGS

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/WYMZMXGSQBB6DGNPHAY2AJWLCV \
  | 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: b619965cd28043e199af3831a026cb154fa2fab4a945961d2d4b11d2db751236

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9e8aca7a4c3f5b06f259e2771ff3f6fc56709755902a7909d973caa60caa27d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-07-19T08:18:37Z",
    "title_canon_sha256": "f98b26b88620f4e8e06af0cd71f25b3bce79ba498e9cd1198534dfee274fcf1b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0707.2847",
    "kind": "arxiv",
    "version": 2
  }
}