Pith Number

pith:ZQUT7H7L

pith:2008:ZQUT7H7LPE3P4AZLOEJWAZVPMP

not attested not anchored not stored refs pending

The young star cluster system of the Antennae galaxies

(2) University of Hertfordshire, (3) University of Sheffield, Peter Anders (1), Richard de Grijs (3) ((1) University Utrecht, The Netherlands, UK, UK), Uta Fritze (2)

arxiv:0801.3679 v1 · 2008-01-23 · 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{ZQUT7H7LPE3P4AZLOEJWAZVPMP}

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	2026-05-18T04:03:45.639996Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc293f9feb7936fe032b71136066af63cf0314f6493f279281762ec5264f4b98

Aliases

arxiv: 0801.3679 · arxiv_version: 0801.3679v1 · doi: 10.48550/arxiv.0801.3679 · pith_short_12: ZQUT7H7LPE3P · pith_short_16: ZQUT7H7LPE3P4AZL · pith_short_8: ZQUT7H7L

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/ZQUT7H7LPE3P4AZLOEJWAZVPMP \
  | 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: cc293f9feb7936fe032b71136066af63cf0314f6493f279281762ec5264f4b98

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0018b38f69ce5defab7966e844018484090c7647be88d5d77e666c759b4314c1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-01-23T21:48:14Z",
    "title_canon_sha256": "52f99a219a4522d6126edcf37af04917e4e1f3dbc30236466505e9101f32dc69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.3679",
    "kind": "arxiv",
    "version": 1
  }
}