Pith Number

pith:7DOSN4QS

pith:2010:7DOSN4QS4H53VVN4CNGK2ODWQA

not attested not anchored not stored refs pending

Spitzer Surveys of IR Excesses of White Dwarfs

(2) Steward Observatory, A. Riddle (1), J. Bil\'ikov\`a (1), K.Y.-L. Su (2) ((1) University of Illinois at Urbana-Champaign, R.A. Gruendl (1), University of Arizona), Y.-H. Chu (1)

arxiv:1012.1398 v1 · 2010-12-07 · 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{7DOSN4QS4H53VVN4CNGK2ODWQA}

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	2026-05-18T02:04:32.266363Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8dd26f212e1fbbad5bc134cad38768011e42d7efbddd59661331872106e7759

Aliases

arxiv: 1012.1398 · arxiv_version: 1012.1398v1 · doi: 10.48550/arxiv.1012.1398 · pith_short_12: 7DOSN4QS4H53 · pith_short_16: 7DOSN4QS4H53VVN4 · pith_short_8: 7DOSN4QS

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/7DOSN4QS4H53VVN4CNGK2ODWQA \
  | 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: f8dd26f212e1fbbad5bc134cad38768011e42d7efbddd59661331872106e7759

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d9d9b034c432f089c56e64bfdb2a49df5eb363fd662a376659002c3a7f213ea8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-12-07T05:25:14Z",
    "title_canon_sha256": "e40aad96063716be832adc4164f5990f29f6254c0bd43cfeae8a603f1ef80533"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.1398",
    "kind": "arxiv",
    "version": 1
  }
}