Pith Number

pith:N4N3K5NA

pith:2006:N4N3K5NARCKYWJQ5EMKXC2OJJF

not attested not anchored not stored refs pending

A Catalog of Spectroscopically Confirmed White Dwarfs from the Sloan Digital Sky Survey Data Release 4

Atsuko Nitta, Daniel J. Eisenstein, Dan Long, Donald P. Schneider, Eric H. Neilsen Jr., Howard J. Brewington, Hugh C. Harris, James Liebert, J. Brinkmann, J.C. Barentine, Jurek Krzesinski, Michael Harvanek, Nicole Silvestri, Scott A. Anderson, S.J. Kleinmann, Stephanie A. Snedden

arxiv:astro-ph/0606700 v1 · 2006-06-28 · 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{N4N3K5NARCKYWJQ5EMKXC2OJJF}

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	2026-05-18T04:23:00.509950Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f1bb575a088958b261d23157169c9496bcfbd1a07f543e484981fa402269d9b

Aliases

arxiv: astro-ph/0606700 · arxiv_version: astro-ph/0606700v1 · doi: 10.48550/arxiv.astro-ph/0606700 · pith_short_12: N4N3K5NARCKY · pith_short_16: N4N3K5NARCKYWJQ5 · pith_short_8: N4N3K5NA

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/N4N3K5NARCKYWJQ5EMKXC2OJJF \
  | 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: 6f1bb575a088958b261d23157169c9496bcfbd1a07f543e484981fa402269d9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c43f84072826f114c7acc062cf71f32f0f1e6b91984c4e9d394582c2d5cd51b2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-06-28T22:19:43Z",
    "title_canon_sha256": "40ab2ec9685a9395227a22e58a4dcaa984c583a9da0aae8abce974b5528cff02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0606700",
    "kind": "arxiv",
    "version": 1
  }
}