Pith Number

pith:LDRNOBDZ

pith:2013:LDRNOBDZJL23R75N5FS33WE2HZ

not attested not anchored not stored refs pending

Spectroscopy of New and Poorly Known Cataclysmic Variables in the Kepler Field

Alan Smale, Gavin Ramsay, John Cannizzo, Mark E. Everett, Martin Still, Matt Wood, Paula Szkody, Sally A. Seebode, Steve B. Howell

arxiv:1302.3975 v1 · 2013-02-16 · 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{LDRNOBDZJL23R75N5FS33WE2HZ}

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	2026-05-18T01:51:36.029948Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58e2d704794af5b8ffade965bdd89a3e453cd984b6212911e3ba5710ce7abf61

Aliases

arxiv: 1302.3975 · arxiv_version: 1302.3975v1 · doi: 10.48550/arxiv.1302.3975 · pith_short_12: LDRNOBDZJL23 · pith_short_16: LDRNOBDZJL23R75N · pith_short_8: LDRNOBDZ

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/LDRNOBDZJL23R75N5FS33WE2HZ \
  | 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: 58e2d704794af5b8ffade965bdd89a3e453cd984b6212911e3ba5710ce7abf61

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47d1863f201d011faf40f8b447b850188ef80b1e7c120cb2617e70fc60b8ac59",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-02-16T16:02:40Z",
    "title_canon_sha256": "b8234538a931194c004fd243302416cf75b2f030d114e6a86bcb6b72064e61b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.3975",
    "kind": "arxiv",
    "version": 1
  }
}