Pith Number

pith:GP6P6KIT

pith:2005:GP6P6KIT3WGW2JKFHAB2XO2JMZ

not attested not anchored not stored refs pending

The initial mass distribution of the M82 star cluster system

Cambridge, G. Parmentier (Institute of Astronomy, H.J.G.L.M. Lamers (Utrecht University, Netherlands), R. de Grijs (University of Sheffield, UK)

arxiv:astro-ph/0509721 v1 · 2005-09-23 · 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{GP6P6KIT3WGW2JKFHAB2XO2JMZ}

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	2026-05-18T01:07:28.787749Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33fcff2913dd8d6d25453803abbb496660bfcc7c00b011a6ea1e52623e528a34

Aliases

arxiv: astro-ph/0509721 · arxiv_version: astro-ph/0509721v1 · doi: 10.48550/arxiv.astro-ph/0509721 · pith_short_12: GP6P6KIT3WGW · pith_short_16: GP6P6KIT3WGW2JKF · pith_short_8: GP6P6KIT

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/GP6P6KIT3WGW2JKFHAB2XO2JMZ \
  | 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: 33fcff2913dd8d6d25453803abbb496660bfcc7c00b011a6ea1e52623e528a34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad93b22658e0d01737dca88a1e609288b294d46cac2b7eb891b8975e389ed2f5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-09-23T16:01:00Z",
    "title_canon_sha256": "bdd452332e5caac07f03652235b2c27816621f31fdd201f56f48f4fad5980ebe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0509721",
    "kind": "arxiv",
    "version": 1
  }
}