Pith Number

pith:JQAEKHXQ

pith:2013:JQAEKHXQEGZBEEOBZA7U5FPLDD

not attested not anchored not stored refs pending

Investigating the origin of cyclical spectral variations in hot, massive stars

Alexandre David-Uraz, Asif Ud-Doula, Gregg A. Wade, Veronique Petit

arxiv:1310.3367 v1 · 2013-10-12 · 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{JQAEKHXQEGZBEEOBZA7U5FPLDD}

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	2026-05-18T02:45:04.681458Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c00451ef021b21211c1c83f4e95eb18e1fe5f2855211cf9fd33cfbe1c511616

Aliases

arxiv: 1310.3367 · arxiv_version: 1310.3367v1 · doi: 10.48550/arxiv.1310.3367 · pith_short_12: JQAEKHXQEGZB · pith_short_16: JQAEKHXQEGZBEEOB · pith_short_8: JQAEKHXQ

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/JQAEKHXQEGZBEEOBZA7U5FPLDD \
  | 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: 4c00451ef021b21211c1c83f4e95eb18e1fe5f2855211cf9fd33cfbe1c511616

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "259c25d2e26a894a795dd164c27f585d6101e2bf1e96b812b75d8ad28894fa25",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-10-12T13:20:18Z",
    "title_canon_sha256": "0dff3de524e683f9ab2f90dd4ae9bfc07b53bed88361cbd15f5496569ce56671"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.3367",
    "kind": "arxiv",
    "version": 1
  }
}