Pith Number

pith:ZNQQ2NKP

pith:2015:ZNQQ2NKP63GHA5VJCBSM7BCTKQ

not attested not anchored not stored refs pending

A not so massive cluster hosting a very massive star

2), 2) ((1) Millennium Institute of Astrophysics, A.-N. Chen\'e (3), AURA, Chile (2) Instituto de Astronom\'ia, Chile (3) Gemini Observatory, C. Navarro (1, J. A. Carballo-Bello (1, J. Borissova (1, M. Kuhn (2), R. Kurtev (1, Santiago, S. Ram\'irez Alegr\'ia (1, Universidad de Valpara\'iso, USA)

arxiv:1510.01939 v1 · 2015-10-07 · astro-ph.SR

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

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	2026-05-18T01:30:50.056371Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb610d354ff6cc7076a91064cf8453541e4e5c2ad5882e50bfefb60f6b99bd4a

Aliases

arxiv: 1510.01939 · arxiv_version: 1510.01939v1 · doi: 10.48550/arxiv.1510.01939 · pith_short_12: ZNQQ2NKP63GH · pith_short_16: ZNQQ2NKP63GHA5VJ · pith_short_8: ZNQQ2NKP

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/ZNQQ2NKP63GHA5VJCBSM7BCTKQ \
  | 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: cb610d354ff6cc7076a91064cf8453541e4e5c2ad5882e50bfefb60f6b99bd4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b91b3fffd729f052209eae1e87f53168efeee5f521c63504b9fbacef93467772",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-10-07T13:38:48Z",
    "title_canon_sha256": "da29d44ba68afef28baaba51adb037a407a828bf9c9d43024679d67cd4b03ee0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.01939",
    "kind": "arxiv",
    "version": 1
  }
}