Pith Number

pith:SR6HA3TU

pith:2019:SR6HA3TUUEH46FD6MC5POPE6EY

not attested not anchored not stored refs pending

Deep Transfer Learning for Star Cluster Classification: I. Application to the PHANGS-HST Survey

Andreas Schruba, Bradley C. Whitmore, Daniel A. Dale, David A. Thilker, E. A. Huerta, Enrico Congiu, Guillermo Blanc, Janice C. Lee, J. M. Diederik Kruijssen, Kirsten L. Larson, Leonardo Ubeda, M\'ed\'eric Boquien, M\'elanie Chevance, Rupali Chandar, Stephen Hannon, Wei Wei

arxiv:1909.02024 v2 · 2019-09-04 · astro-ph.GA · astro-ph.IM · physics.data-an · physics.ins-det

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SR6HA3TUUEH46FD6MC5POPE6EY}

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	2026-07-05T01:29:40.557331Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

947c706e74a10fcf147e60baf73c9e26104fa3109451bf1137d305f93a47021e

Aliases

arxiv: 1909.02024 · arxiv_version: 1909.02024v2 · doi: 10.48550/arxiv.1909.02024 · pith_short_12: SR6HA3TUUEH4 · pith_short_16: SR6HA3TUUEH46FD6 · pith_short_8: SR6HA3TU

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/SR6HA3TUUEH46FD6MC5POPE6EY \
  | 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: 947c706e74a10fcf147e60baf73c9e26104fa3109451bf1137d305f93a47021e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29fd5f81d0dcf281efa6770f3935fc200a85cada7f8736cd68c197d0441a252d",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "physics.data-an",
      "physics.ins-det"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-09-04T18:01:05Z",
    "title_canon_sha256": "a67a431774a81ad45c5cec0a5c3d7b6d729a4f03f8dde26d7a081c94fecd340c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.02024",
    "kind": "arxiv",
    "version": 2
  }
}