Pith Number

pith:OCU7Y5WG

pith:2013:OCU7Y5WGXBAX4NQAIUEKEOFHVG

not attested not anchored not stored refs pending

The Correlation Between H\alpha\ Emission and Visual Magnitude During Long-Term Variations in Classical Be Stars

P. Patel, T. A. A. Sigut

arxiv:1301.3721 v2 · 2013-01-16 · 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{OCU7Y5WGXBAX4NQAIUEKEOFHVG}

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	2026-05-18T01:52:06.647282Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70a9fc76c6b8417e36004508a238a7a9834dca1ee1014434ea758e62ccc5a78f

Aliases

arxiv: 1301.3721 · arxiv_version: 1301.3721v2 · doi: 10.48550/arxiv.1301.3721 · pith_short_12: OCU7Y5WGXBAX · pith_short_16: OCU7Y5WGXBAX4NQA · pith_short_8: OCU7Y5WG

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/OCU7Y5WGXBAX4NQAIUEKEOFHVG \
  | 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: 70a9fc76c6b8417e36004508a238a7a9834dca1ee1014434ea758e62ccc5a78f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6242f1c33edfdcdb25db147684c9e52f1d6482d6c2c03c5ad0e5499d677d566",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-01-16T15:24:24Z",
    "title_canon_sha256": "a092afe6d2914d21acb89e5a6ff667a24d6063f6f6f360322a5583fde3b80aad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.3721",
    "kind": "arxiv",
    "version": 2
  }
}