Pith Number

pith:4CJDVKCG

pith:2006:4CJDVKCGW3LIBE7IGRPQ3D2YG5

not attested not anchored not stored refs pending

Discovery of the first very wide WD-LD binary system?

Avril C. Day-Jones, David J. Pinfield, Hugh R.A. Jones, James S. Jenkins, Ralf Napiwotzki, Tim R. Kendall

arxiv:astro-ph/0610318 v1 · 2006-10-11 · 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{4CJDVKCGW3LIBE7IGRPQ3D2YG5}

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	2026-07-04T14:56:54.042508Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0923aa846b6d68093e8345f0d8f583758914683cbb7b888b25ae41c4c00970a

Aliases

arxiv: astro-ph/0610318 · arxiv_version: astro-ph/0610318v1 · doi: 10.48550/arxiv.astro-ph/0610318 · pith_short_12: 4CJDVKCGW3LI · pith_short_16: 4CJDVKCGW3LIBE7I · pith_short_8: 4CJDVKCG

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/4CJDVKCGW3LIBE7IGRPQ3D2YG5 \
  | 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: e0923aa846b6d68093e8345f0d8f583758914683cbb7b888b25ae41c4c00970a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e02b7f1f6e9ff0184d84f1da3c85d47e5e8f26622434377aa79146fc8f1b6011",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-10-11T12:04:35Z",
    "title_canon_sha256": "6852e39957d7a9bb709e1b9a004fea28d938985bae745ec65a5aee8dc534cb81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0610318",
    "kind": "arxiv",
    "version": 1
  }
}