Pith Number

pith:K4BNCNGI

pith:2013:K4BNCNGI2WBISVFIP5LZ5SI3XG

not attested not anchored not stored refs pending

Feedback regulated star formation: II. dual constraints on the SFE and the age spread of stars in massive clusters

Julia Gutkin, Sami Dib, Shantanu Basu, Wolfgang Brandner

arxiv:1306.6338 v3 · 2013-06-26 · 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{K4BNCNGI2WBISVFIP5LZ5SI3XG}

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	2026-05-18T01:49:07.422313Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5702d134c8d5828954a87f579ec91bb9a91f32b7ab3ab015fa22b44d5c3302b5

Aliases

arxiv: 1306.6338 · arxiv_version: 1306.6338v3 · doi: 10.48550/arxiv.1306.6338 · pith_short_12: K4BNCNGI2WBI · pith_short_16: K4BNCNGI2WBISVFI · pith_short_8: K4BNCNGI

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/K4BNCNGI2WBISVFIP5LZ5SI3XG \
  | 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: 5702d134c8d5828954a87f579ec91bb9a91f32b7ab3ab015fa22b44d5c3302b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ea6abe98e5cea948e8c59e14b24f71c18c8f660da01d2ec613adefa62068230",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-06-26T20:00:16Z",
    "title_canon_sha256": "d72258d1d4171ad2b807377200e74c6d2500d6bccfee333445e9b46e8bcd9ca7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.6338",
    "kind": "arxiv",
    "version": 3
  }
}