Pith Number

pith:NBHKHGQB

pith:2007:NBHKHGQBZCMB5RPPWFHBWRMM6R

not attested not anchored not stored refs pending

New Close Binary Systems from the SDSS-I (Data Release Five) and the Search for Magnetic White Dwarfs in Cataclysmic Variable Progenitor Systems

Andrew A. West(2), Berkeley; (3) University of Arizona, Cracow Pedagogical University; (6) Penn State University), Dan Long(4), Donald P. Schneider(6), Gary D. Schmidt(3), Howard J. Brewington(4), James Liebert(3), J. C. Barentine(4), Jurik Krzesinski(5), Lee Mannikko(1), Mara P. Lemagie(1), Michael A. Wolfe(1), Michael Harvanek(4), Nicole M. Silvestri(1), Paula Szkody(1), Stephanie A. Snedden(4) ((1) University of Washington; (2) University of California, Steward Observatory; (4) Apache Point Observatory; (5) Mt. Suhora Observatory, Suzanne L. Hawley(1)

arxiv:0704.0789 v1 · 2007-04-05 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NBHKHGQBZCMB5RPPWFHBWRMM6R}

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	2026-07-04T15:44:56.863678Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

684ea39a01c8981ec5efb14e1b458cf44513318cf79fa799ba17981204b3200f

Aliases

arxiv: 0704.0789 · arxiv_version: 0704.0789v1 · doi: 10.48550/arxiv.0704.0789 · pith_short_12: NBHKHGQBZCMB · pith_short_16: NBHKHGQBZCMB5RPP · pith_short_8: NBHKHGQB

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/NBHKHGQBZCMB5RPPWFHBWRMM6R \
  | 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: 684ea39a01c8981ec5efb14e1b458cf44513318cf79fa799ba17981204b3200f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b479defb6e75e3244c9e31dbfb663f3f93ee8b88d09883e580be48646754647e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-04-05T19:55:10Z",
    "title_canon_sha256": "1635665bc653c2b36c2daf16ce6692cbd361c3aee66458eb91e388570b458091"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.0789",
    "kind": "arxiv",
    "version": 1
  }
}