Pith Number

pith:YQ5TEOLZ

pith:2007:YQ5TEOLZTVK7CKEUGABUHG2VZN

not attested not anchored not stored refs pending

Nuclear Star Clusters across the Hubble Sequence

Torsten Boeker

arxiv:0708.1093 v1 · 2007-08-08 · 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{YQ5TEOLZTVK7CKEUGABUHG2VZN}

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	2026-05-18T02:16:28.865574Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c43b3239799d55f128943003439b55cb77e55b7b9a957247e0c26a4ec2ef7e9b

Aliases

arxiv: 0708.1093 · arxiv_version: 0708.1093v1 · doi: 10.48550/arxiv.0708.1093 · pith_short_12: YQ5TEOLZTVK7 · pith_short_16: YQ5TEOLZTVK7CKEU · pith_short_8: YQ5TEOLZ

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/YQ5TEOLZTVK7CKEUGABUHG2VZN \
  | 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: c43b3239799d55f128943003439b55cb77e55b7b9a957247e0c26a4ec2ef7e9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ed794d8f7bebd1fd615b1bba377e17ccb1b00ebcabf2c79502e04e3475b088d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-08-08T13:06:48Z",
    "title_canon_sha256": "d1476e87d0c552a13fadcc75395b180a8781d6fdbb6469383f07431071d3ac4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0708.1093",
    "kind": "arxiv",
    "version": 1
  }
}