Pith Number

pith:NU2WEL6F

pith:2009:NU2WEL6FXKFD5OUTXAD6RAOSME

not attested not anchored not stored refs pending

UBV(RI)_C photometry of the open clusters Be 15, Be 80, and NGC 2192

A. Moitinho, C. Chavarr\'ia-K., M. T. Tapia, R. Michel, R. V\'azquez, W. J. Schuster, W. S. Dias

arxiv:0909.3913 v1 · 2009-09-22 · 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{NU2WEL6FXKFD5OUTXAD6RAOSME}

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	2026-05-18T02:11:45.485645Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d35622fc5ba8a3eba93b807e881d2613be8649090efc6a4f8e0f85bfa235072

Aliases

arxiv: 0909.3913 · arxiv_version: 0909.3913v1 · doi: 10.48550/arxiv.0909.3913 · pith_short_12: NU2WEL6FXKFD · pith_short_16: NU2WEL6FXKFD5OUT · pith_short_8: NU2WEL6F

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/NU2WEL6FXKFD5OUTXAD6RAOSME \
  | 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: 6d35622fc5ba8a3eba93b807e881d2613be8649090efc6a4f8e0f85bfa235072

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07064ccb8a6106397cc0d4f28af03f560ed72d094cd4057d938cf5bee925793a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-09-22T05:57:18Z",
    "title_canon_sha256": "10d4182f4b138f1ab39d566c1627eceb596ec2719debda3505340cb01c28e326"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.3913",
    "kind": "arxiv",
    "version": 1
  }
}