Pith Number

pith:WUTADS5W

pith:2009:WUTADS5W5JWLHLMDAKH7ZWBTRX

not attested not anchored not stored refs pending

Hot Subdwarf Stars Among the Objects Rejected from the PG Catalog: a First Assessment Using GALEX Photometry

(2) LBTO, (3) Youngstown State), M. A. Stark (1), Patrick R. Durrell (3) ((1) Penn State, Richard A. Wade (1), Richard F. Green (2)

arxiv:0906.2360 v1 · 2009-06-12 · 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{WUTADS5W5JWLHLMDAKH7ZWBTRX}

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	2026-05-18T02:13:20.491234Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b52601cbb6ea6cb3ad83028ffcd8338dfc38951a69382c21678c0fb8edfd3328

Aliases

arxiv: 0906.2360 · arxiv_version: 0906.2360v1 · doi: 10.48550/arxiv.0906.2360 · pith_short_12: WUTADS5W5JWL · pith_short_16: WUTADS5W5JWLHLMD · pith_short_8: WUTADS5W

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/WUTADS5W5JWLHLMDAKH7ZWBTRX \
  | 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: b52601cbb6ea6cb3ad83028ffcd8338dfc38951a69382c21678c0fb8edfd3328

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f219cf40a31e9e4ef35484c13c1a232b4126c98259a21a3396a8c1835434eefd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-06-12T15:24:26Z",
    "title_canon_sha256": "9e3618d9beba92cb06aa46ed55e924c0f94a6d7399c5ab4d931e429d6c057a61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.2360",
    "kind": "arxiv",
    "version": 1
  }
}