Pith Number

pith:SWNYZHYP

pith:2010:SWNYZHYP5KK2XKXTNNC3ZPZRQZ

not attested not anchored not stored refs pending

Another cluster of red supergiants close to RSGC1

Amparo Marco (Alicante), Carlos Gonzalez-Fernandez (Alicante), Ignacio Negueruela (Alicante), J. Simon Clark (Open University), Silvia Martinez-Nunez (Alicante)

arxiv:1002.1823 v1 · 2010-02-09 · 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{SWNYZHYP5KK2XKXTNNC3ZPZRQZ}

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	2026-05-18T02:09:10.930424Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

959b8c9f0fea95abaaf36b45bcbf31867db1e9510a5dba3010c2175b5d6304ea

Aliases

arxiv: 1002.1823 · arxiv_version: 1002.1823v1 · doi: 10.48550/arxiv.1002.1823 · pith_short_12: SWNYZHYP5KK2 · pith_short_16: SWNYZHYP5KK2XKXT · pith_short_8: SWNYZHYP

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/SWNYZHYP5KK2XKXTNNC3ZPZRQZ \
  | 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: 959b8c9f0fea95abaaf36b45bcbf31867db1e9510a5dba3010c2175b5d6304ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2fb9022e632a932cb3f1338aa9dd495bd9f40c2fb68e694a988ce9ff982d3595",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-02-09T11:21:01Z",
    "title_canon_sha256": "152fbe54c949a6751ef778268cf8ccad1d39efe8fdeffa5d8fb152ff5408d13a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.1823",
    "kind": "arxiv",
    "version": 1
  }
}