Pith Number

pith:OZ7VIQDD

pith:2010:OZ7VIQDD3P57NQ7E6W3OSOK22E

not attested not anchored not stored refs pending

SiO and H2O Maser Observations of Red Supergiants in Star Clusters Embedded in the Galactic Disk

J. Nakashima, K. Koike, S. Deguchi, S. Kwok, S. S. N. Chong, Y. Zhang

arxiv:1002.2492 v1 · 2010-02-12 · astro-ph.SR · 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{OZ7VIQDD3P57NQ7E6W3OSOK22E}

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	2026-05-18T02:09:08.949460Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

767f544063dbfbf6c3e4f5b6e9395ad11fb39055869b5147675b456a82e1aceb

Aliases

arxiv: 1002.2492 · arxiv_version: 1002.2492v1 · doi: 10.48550/arxiv.1002.2492 · pith_short_12: OZ7VIQDD3P57 · pith_short_16: OZ7VIQDD3P57NQ7E · pith_short_8: OZ7VIQDD

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/OZ7VIQDD3P57NQ7E6W3OSOK22E \
  | 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: 767f544063dbfbf6c3e4f5b6e9395ad11fb39055869b5147675b456a82e1aceb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f5d57a2792d8c692952189ac6457e6422ada290f9d60ba91bab14d8d1c2d252",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-02-12T08:36:22Z",
    "title_canon_sha256": "0b594f2a633141a3a01ec3ea324904e84db636e83e727329d065a3b6b7213ca5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.2492",
    "kind": "arxiv",
    "version": 1
  }
}