Pith Number

pith:TFDOTTOD

pith:2018:TFDOTTODKDTFGYYK2DRDO2WOUS

not attested not anchored not stored refs pending

Search For Star Cluster Age Gradients Across Spiral Arms of Three LEGUS Disk Galaxies

A. Adamo, A. Aloisi, A. Pasquali, A. Pellerin, B.G. Elmegreen, C. Dobbs, D.A. Dale, D.A. Gouliermis, D.A. Thilker, D. Calzetti, D.M. Elmegreen, E. D'Onghia, E.K. Grebel, E. Sabbi, F. Shabani, H. Kim, J.C. Lee, J.S. Gallagher III, K. Grasha, L.J. Smith, M. Cignoni, M. Messa, M. Tosi

arxiv:1805.05643 v1 · 2018-05-15 · 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{TFDOTTODKDTFGYYK2DRDO2WOUS}

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	2026-05-18T00:15:59.951525Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9946e9cdc350e653630ad0e2376acea4b2e1bb461cae18bf816af77dfc59b0db

Aliases

arxiv: 1805.05643 · arxiv_version: 1805.05643v1 · doi: 10.48550/arxiv.1805.05643 · pith_short_12: TFDOTTODKDTF · pith_short_16: TFDOTTODKDTFGYYK · pith_short_8: TFDOTTOD

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/TFDOTTODKDTFGYYK2DRDO2WOUS \
  | 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: 9946e9cdc350e653630ad0e2376acea4b2e1bb461cae18bf816af77dfc59b0db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c269a37deae1c82b35cafd8771a75ff7b695e95fb79ddf3a01884c552d74869a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-05-15T08:51:08Z",
    "title_canon_sha256": "84cd083bea1ab61012b2b180db6f86682129f541122d0bee44ccc95e8a082d63"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.05643",
    "kind": "arxiv",
    "version": 1
  }
}