Pith Number

pith:4ZKB2AI2

pith:2015:4ZKB2AI2Z3RZRJSPUSO2PKQFGU

not attested not anchored not stored refs pending

Hierarchical Star Formation across the ring galaxy NGC 6503

Alessandra Aloisi, Angela Adamo, Anne Pellerin, Antonella Nota, Artemio Herrero Davo, Brad Whitmore, Bruce G. Elmegreen, Daniela Calzetti, Daniel Dale, David O. Cook, David Thilker, Debra M. Elmegreen, Deidre A. Hunter, Dimitrios A. Gouliermis, Elena Sabbi, Elena Sacchi, Eva K. Grebel, Hwihyun Kim, Janice C. Lee, Jenna Ryon, John S. Gallagher III, Kathryn Grasha, Kelsey E. Johnson, Leonardo Ubeda, Linda J. Smith, Michele Cignoni, Monica Tosi, Preethi Nair

arxiv:1506.03928 v1 · 2015-06-12 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4ZKB2AI2Z3RZRJSPUSO2PKQFGU}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:51:18.818146Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6541d011acee398a64fa49da7aa05353601a07d8140c390fb862a05bb9ac1e5

Aliases

arxiv: 1506.03928 · arxiv_version: 1506.03928v1 · doi: 10.48550/arxiv.1506.03928 · pith_short_12: 4ZKB2AI2Z3RZ · pith_short_16: 4ZKB2AI2Z3RZRJSP · pith_short_8: 4ZKB2AI2

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/4ZKB2AI2Z3RZRJSPUSO2PKQFGU \
  | 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: e6541d011acee398a64fa49da7aa05353601a07d8140c390fb862a05bb9ac1e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "725951c0cf98e462bedf082bfc62c222c39d356472a18c984bbd6ec6f7faf220",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-06-12T08:16:22Z",
    "title_canon_sha256": "808df6b50a7b4cb7841b2b4170b23101e52bdd4fbea8056f160f48f9c24ce812"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.03928",
    "kind": "arxiv",
    "version": 1
  }
}