Pith Number

pith:RLZX6TFZ

pith:2021:RLZX6TFZY6Z7TE4VOD7YKFVFCR

not attested not anchored not stored refs pending

Star Cluster Classification in the PHANGS-HST Survey: Comparison between Human and Machine Learning Approaches

Andreas Schruba, Angus Mok, Bradley C. Whitmore, Daniel A. Dale, David A. Thilker, E. A. Huerta, Elizabeth Watkins, Erik Rosolowsky, Eva Schinnerer, Frank Bigiel, Janice C. Lee, J. M. Diederik Kruijssen, Kathryn Grasha, Kirsten L. Larson, Leonardo Ubeda, M\'ed\'eric Boquien, M\'elanie Chevance, Ralf S. Klessen, Rupali Chandar, Schuyler D. Van Dyk, Sinan Deger, Stephen Hannon, Thomas Williams, Wei Wei

arxiv:2107.13049 v1 · 2021-07-27 · 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{RLZX6TFZY6Z7TE4VOD7YKFVFCR}

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	2026-07-05T03:06:34.068100Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8af37f4cb9c7b3f9939570ff8516a514750b019120b7bf70ec1fc5e1f1eaf9e8

Aliases

arxiv: 2107.13049 · arxiv_version: 2107.13049v1 · doi: 10.48550/arxiv.2107.13049 · pith_short_12: RLZX6TFZY6Z7 · pith_short_16: RLZX6TFZY6Z7TE4V · pith_short_8: RLZX6TFZ

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/RLZX6TFZY6Z7TE4VOD7YKFVFCR \
  | 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: 8af37f4cb9c7b3f9939570ff8516a514750b019120b7bf70ec1fc5e1f1eaf9e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d9335e09b659ceab1ed65f76220a5df7a43dc732a9c2a0aee9395123ee2f788c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-07-27T19:19:31Z",
    "title_canon_sha256": "1dc72c5e76f33d03365c26cb17161b916aac8fea758d113b81161ffc807eccc4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.13049",
    "kind": "arxiv",
    "version": 1
  }
}