Pith Number

pith:BUF35WVC

pith:2025:BUF35WVCJ4BOW3WG2HPY43EAKO

not attested not anchored not stored refs pending

The dearth of high-mass hydrogen-atmosphere metal-polluted white dwarfs within 40 pc

David Charbonneau, Detlev Koester, Dimitri Veras, Evan B. Bauer, Mairi O'Brien, Mark A. Hollands, Muhammad Furqaan Yusaf, Pier-Emmanuel Tremblay, Scott J. Kenyon, Tim Cunningham

arxiv:2503.09734 v1 · 2025-03-12 · astro-ph.SR · astro-ph.EP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BUF35WVCJ4BOW3WG2HPY43EAKO}

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	2026-07-05T10:30:07.172821Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d0bbedaa24f02eb6ec6d1df8e6c805389be08b744918120cc749b7a4b79e3ba

Aliases

arxiv: 2503.09734 · arxiv_version: 2503.09734v1 · doi: 10.48550/arxiv.2503.09734 · pith_short_12: BUF35WVCJ4BO · pith_short_16: BUF35WVCJ4BOW3WG · pith_short_8: BUF35WVC

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/BUF35WVCJ4BOW3WG2HPY43EAKO \
  | 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: 0d0bbedaa24f02eb6ec6d1df8e6c805389be08b744918120cc749b7a4b79e3ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41a9e162e0273438f2622603fa620676ff0e42ce62ec56878d5c196a3bf3d903",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2025-03-12T18:34:36Z",
    "title_canon_sha256": "4ac7c3455a025a4a948b55368cf0b3ea5c719469917aa9911a2abda67f552e61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.09734",
    "kind": "arxiv",
    "version": 1
  }
}