Pith Number

pith:O7AIOFUK

pith:2015:O7AIOFUKP66XCRF2H6TCSKHRGS

not attested not anchored not stored refs pending

The Spatial Structure of Young Stellar Clusters. III. Physical Properties and Evolutionary States

2, (2) Universidad de Valparaiso, 3), 3) ((1) Penn State University, (3) Millennium Institute of Astrophysics, (4) McMaster University, (5) University of Exeter), Alison Sills (4), Eric D. Feigelson (1), Jordanka Borissova (2, Konstantin V. Getman (1), Matthew R. Bate (5), Michael A. Kuhn (1

arxiv:1507.05653 v1 · 2015-07-20 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O7AIOFUKP66XCRF2H6TCSKHRGS}

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	2026-05-18T01:28:53.445712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77c087168a7fbd7144ba3fa62928f1349d377d808e8329e379b0ca36b0024311

Aliases

arxiv: 1507.05653 · arxiv_version: 1507.05653v1 · doi: 10.48550/arxiv.1507.05653 · pith_short_12: O7AIOFUKP66X · pith_short_16: O7AIOFUKP66XCRF2 · pith_short_8: O7AIOFUK

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/O7AIOFUKP66XCRF2H6TCSKHRGS \
  | 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: 77c087168a7fbd7144ba3fa62928f1349d377d808e8329e379b0ca36b0024311

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe9023e6c64e1eb4d2dbbc2ee74836dbb1d9b6fb66c08ace4198a5d2004902be",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-07-20T20:58:44Z",
    "title_canon_sha256": "373346ba94403fb54eb13e8b69723ca1d1abdf4102f40f44bbe057f28f1288a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.05653",
    "kind": "arxiv",
    "version": 1
  }
}