Pith Number

pith:OD65GYKY

pith:2010:OD65GYKYRQ4WGLDZM2VZNE6MTW

not attested not anchored not stored refs pending

The R136 star cluster hosts several stars whose individual masses greatly exceed the accepted 150 Msun stellar mass limit

AIP), Hasan Abu Kassim (Malaya), Norhasliza Yusof (Malaya), Olivier Schnurr (Sheffield, Paul A Crowther (Sheffield), Raphael Hirschi (Keele, Richard J Parker (Sheffield), Simon P Goodwin (Sheffield), Tokyo)

arxiv:1007.3284 v1 · 2010-07-19 · 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{OD65GYKYRQ4WGLDZM2VZNE6MTW}

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	2026-05-18T04:26:02.413113Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70fdd361588c39632c7966ab9693cc9d829f0126b4711b47c83c5b018fd335bf

Aliases

arxiv: 1007.3284 · arxiv_version: 1007.3284v1 · doi: 10.48550/arxiv.1007.3284 · pith_short_12: OD65GYKYRQ4W · pith_short_16: OD65GYKYRQ4WGLDZ · pith_short_8: OD65GYKY

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/OD65GYKYRQ4WGLDZM2VZNE6MTW \
  | 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: 70fdd361588c39632c7966ab9693cc9d829f0126b4711b47c83c5b018fd335bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6bba766bada91722dbda9b4ee03582fd9b3b95c9cbded5dc70deca70acc0ff6",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-07-19T21:08:04Z",
    "title_canon_sha256": "f0dadf55dda350d1c92a6edb1ffa7b2ea3642a244d0b78d7dd4bce9ee36eab5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.3284",
    "kind": "arxiv",
    "version": 1
  }
}