Pith Number

pith:CYJPQK53

pith:2004:CYJPQK53ECVJF2J7V6G5XQV4HF

not attested not anchored not stored refs pending

A Catalog of Spectroscopically Identified White Dwarf Stars in the First Data Release of the Sloan Digital Sky Survey

Alan Uomoto, A. S. Mukadam, Atsuko Nitta, Conard C. Dahn, Daniel J. Eisenstein, D. J. Schlegel, D. Koester, Donald G. York, Donald P. Schneider, D. Q. Lamb, Gary Schmidt, G. R. Knapp, Hugh C. Harris, J. Allyn Smith, James Liebert, J. Brinkmann, Jeffrey A. Munn, Jeffrey R. Pier, Jurek Krzesi\'nski, Matthew J. Collinge, Michael A. Strauss, Nicole M. Silvestri, Paula Szkody, Scott F. Anderson, S. J. Kleinman, Suzanne L. Hawley

arxiv:astro-ph/0402209 v2 · 2004-02-10 · 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{CYJPQK53ECVJF2J7V6G5XQV4HF}

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	2026-05-18T01:09:03.353126Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1612f82bbb20aa92e93faf8ddbc2bc3963d5cc694f7e1cfb6d5d95505815ae40

Aliases

arxiv: astro-ph/0402209 · arxiv_version: astro-ph/0402209v2 · doi: 10.48550/arxiv.astro-ph/0402209 · pith_short_12: CYJPQK53ECVJ · pith_short_16: CYJPQK53ECVJF2J7 · pith_short_8: CYJPQK53

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/CYJPQK53ECVJF2J7V6G5XQV4HF \
  | 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: 1612f82bbb20aa92e93faf8ddbc2bc3963d5cc694f7e1cfb6d5d95505815ae40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e460d126fc8dd292d8249adb5b242d196aa925fa48331225106d19780b7322c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-02-10T01:42:26Z",
    "title_canon_sha256": "93c43c75094fd35794631d7de4fc4fbd05f3e285c27fe91ffc7fef501861a8d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0402209",
    "kind": "arxiv",
    "version": 2
  }
}