Pith Number

pith:EGUKPAXY

pith:2021:EGUKPAXYPL7UJAEKC2KACODREP

not attested not anchored not stored refs pending

The stellar content of H72.97-69.39, a potential super star cluster in the making

A. S. Hirschauer, H. Zinnecker, M. Andersen, M. Meixner, O. Nayak

arxiv:2102.06544 v1 · 2021-02-12 · 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{EGUKPAXYPL7UJAEKC2KACODREP}

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	2026-07-05T02:29:44.825733Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21a8a782f87aff44808a169401387123cd9cd7c2ed412627ef12e7f937a04fde

Aliases

arxiv: 2102.06544 · arxiv_version: 2102.06544v1 · doi: 10.48550/arxiv.2102.06544 · pith_short_12: EGUKPAXYPL7U · pith_short_16: EGUKPAXYPL7UJAEK · pith_short_8: EGUKPAXY

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/EGUKPAXYPL7UJAEKC2KACODREP \
  | 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: 21a8a782f87aff44808a169401387123cd9cd7c2ed412627ef12e7f937a04fde

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b10fcad25fd8b804f8ccfd2773257cfed9fd9a8ad8b39e226caaae4d45800562",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-02-12T14:12:25Z",
    "title_canon_sha256": "45866cc6d349cb12f6cfc6d6aa2c313382d32f0be7dee64b1ceceda79ef4c2d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.06544",
    "kind": "arxiv",
    "version": 1
  }
}