Pith Number

pith:VIP4HNJ2

pith:2013:VIP4HNJ25IJDGYLLT5GBXPBL6P

not attested not anchored not stored refs pending

The stellar content of the young open cluster Trumpler 37

A. Kellerer, A.K. Pandey, C. Briceno, C. Marka, D.H. Cohen, D. Kjurkchieva, D.P. Dimitrov, E.L.N. Jensen, G. Torres, J. Budaj, {\L}. Bukowiecki, L. Marschall, M. Fernandez, M. Mugrauer, M. Va\v{n}ko, R. Chini, R. Errmann, R. Neuh\"auser, S.C.-L. Hu, T. Pribulla, V. Krushevska, W.P. Chen, Y. Oasa, Z.-Y. Wu

arxiv:1305.4860 v2 · 2013-05-21 · 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{VIP4HNJ25IJDGYLLT5GBXPBL6P}

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	2026-05-18T01:49:48.345542Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa1fc3b53aea1233616b9f4c1bbc2bf3eb2ae0e88068f7d99a31f9e87a226267

Aliases

arxiv: 1305.4860 · arxiv_version: 1305.4860v2 · doi: 10.48550/arxiv.1305.4860 · pith_short_12: VIP4HNJ25IJD · pith_short_16: VIP4HNJ25IJDGYLL · pith_short_8: VIP4HNJ2

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/VIP4HNJ25IJDGYLLT5GBXPBL6P \
  | 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: aa1fc3b53aea1233616b9f4c1bbc2bf3eb2ae0e88068f7d99a31f9e87a226267

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a828f6ee2b91c2fbc4b6f6f4ee9ce853966566468bcc14e57b0e51f81b75211",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-05-21T15:35:25Z",
    "title_canon_sha256": "46629bc9a9e21968e2b7f713e884f118495cef7fc6d7cc0826251a38cbe2ddf1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.4860",
    "kind": "arxiv",
    "version": 2
  }
}