Pith Number

pith:H75RIBTB

pith:2009:H75RIBTBGDZVCBEPBLE66JWVPK

not attested not anchored not stored refs pending

Testing fundamental physics with distant star clusters: theoretical models for pressure-supported stellar systems

Eva K. Grebel, Holger Baumgardt, Hosein Haghi, Katrin Jordi, Michael Hilker, Pavel Kroupa

arxiv:0902.1846 v1 · 2009-02-11 · 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{H75RIBTBGDZVCBEPBLE66JWVPK}

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	2026-05-18T02:35:01.185293Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ffb14066130f351048f0ac9ef26d57a87ec6d1d58e06ee8a0faad64628b196f

Aliases

arxiv: 0902.1846 · arxiv_version: 0902.1846v1 · doi: 10.48550/arxiv.0902.1846 · pith_short_12: H75RIBTBGDZV · pith_short_16: H75RIBTBGDZVCBEP · pith_short_8: H75RIBTB

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/H75RIBTBGDZVCBEPBLE66JWVPK \
  | 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: 3ffb14066130f351048f0ac9ef26d57a87ec6d1d58e06ee8a0faad64628b196f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9796a0323f211e815fdf8d0b342b9f37c1ee1d77e491de5ce3d2141effce6edd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-02-11T10:54:55Z",
    "title_canon_sha256": "c3fe8bf4b5b5c70c8dfdd13a07ebc56d19d51abec9cb97ffa31c8c43bc32f00b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.1846",
    "kind": "arxiv",
    "version": 1
  }
}