Pith Number

pith:YMQWBOD3

pith:2011:YMQWBOD3LD6RXRXOR7O4DIZOPV

not attested not anchored not stored refs pending

Young star clusters in external galaxies

S. S. Larsen (Utrecht University, the Netherlands)

arxiv:1107.4133 v1 · 2011-07-20 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YMQWBOD3LD6RXRXOR7O4DIZOPV}

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	2026-05-18T04:17:13.181024Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c32160b87b58fd1bc6ee8fddc1a32e7d655e17a06c7ff47373b8984f48a338b3

Aliases

arxiv: 1107.4133 · arxiv_version: 1107.4133v1 · doi: 10.48550/arxiv.1107.4133 · pith_short_12: YMQWBOD3LD6R · pith_short_16: YMQWBOD3LD6RXRXO · pith_short_8: YMQWBOD3

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/YMQWBOD3LD6RXRXOR7O4DIZOPV \
  | 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: c32160b87b58fd1bc6ee8fddc1a32e7d655e17a06c7ff47373b8984f48a338b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09d2fadf76a54c3f7a5e838678478a3eb8ff2593513a4e1c6b6320f2f3475372",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-07-20T22:26:32Z",
    "title_canon_sha256": "e3061a2e43a524298fd00264aeba0209afb739909e8fc296cf9f3435d937a91a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.4133",
    "kind": "arxiv",
    "version": 1
  }
}